Journals >Electronics Optics & Control
Contents
2013
Volume: 20 Issue 11
23 Article(s)
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Research Article
Influence of Target Flying Altitude and Velocity to Infrared Detection
YI Yaxing, YAO Mei, WU Junhui, and YUE Kaiduan
Firstlythe definition of detectability was presentedwhich is a new physical quantifier used to describe the difficulty level for detecting a target.Analysis was given to the influence of target flight altitude and velocity on its detectability in infrared bandand the regularity of detectability changing was obtainedFirstlythe definition of detectability was presentedwhich is a new physical quantifier used to describe the difficulty level for detecting a target.Analysis was given to the influence of target flight altitude and velocity on its detectability in infrared bandand the regularity of detectability changing was obtained based on a mount of simulating calculations.The analysis result shows that:1) Under normal weather conditionthe active detecting range will increase by 5 km for the same infrared detector when the speed of target improves by 0.5 Mach;2) The detectability of a target will increase with the increasing of its flying height when the height is under 8 kilometersdecrease with the height when it is beyond 10 kmand reach the max at the height of 8 to 10 km..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 7 (2013)
Application of Gravity Gradient Data in Navigation System
WANG Yandong, HU Huafeng, YANG Shaoshuai, and CHEN Kui
The gravity gradient data is used in the navigation system through the Unscented Kalman Filter (UKF) to study the feasibility and superiority of the gravity gradient aided navigation system.The paper first analyzes how to simulate the gradiometer signal with the given gravity gradient map dataand presents a method thaThe gravity gradient data is used in the navigation system through the Unscented Kalman Filter (UKF) to study the feasibility and superiority of the gravity gradient aided navigation system.The paper first analyzes how to simulate the gradiometer signal with the given gravity gradient map dataand presents a method that uses an interpolation method first and then adds noise to this data with a final lowpass filterer operation.According to the necessity of UKFthe system dynamics of the gravity gradient aided navigation system is providedand how to use the UKF in this model is described.At the end of the paperthe simulation analysis is given to the gravity gradient aided navigation systemmainly through the comparative study of no external aided and the gravity gradient aided navigation systemto demonstrate the availability and feasibility of applying the gravity gradient data to the navigation system..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 11 (2013)
Control Law Design of Hypersonic Vehicle Based on Incremental Dynamic Inverse
ZHANG Jun, DING Shihong, and LU Jiahui
The incremental dynamic inverse robust control law was designed for hypersonic reentry vehicle.Firsttwo loop control modelsfast and slowwere established for the hypersonic vehicle.The reentry foreign strong disturbance was estimated through nonlinear disturbance observer for feedforward compensation.Thenthe incremThe incremental dynamic inverse robust control law was designed for hypersonic reentry vehicle.Firsttwo loop control modelsfast and slowwere established for the hypersonic vehicle.The reentry foreign strong disturbance was estimated through nonlinear disturbance observer for feedforward compensation.Thenthe incremental dynamic inversion control laws were designed respectively for the fast and slow loop through the state rate feedback.Nonsmooth control lawwith high antiinterference ability and fast convergence speedwas used to improve the system robustness.Finallythe linear trackingdifferentiator was introduced to solve the problem that the state rate required by the incremental dynamic inversion control law cant be measured.The simulation verifies the effectiveness of the proposed algorithm..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 16 (2013)
Subjective Weight Determination of Warship Formation in OvertheHorizon AntiMissile Threat Estimation
LI Dapeng, TAN Lezu, and LI Mansi
Aiming at subjective weight determination of warship formation in overthehorizon antimissile threat estimationwe established a threat estimation index systemand built up the optimal index subjective weight determination models of linguistic typeutility typeorder relationship typefuzzy preference relationship tyAiming at subjective weight determination of warship formation in overthehorizon antimissile threat estimationwe established a threat estimation index systemand built up the optimal index subjective weight determination models of linguistic typeutility typeorder relationship typefuzzy preference relationship typemultiplicative preference relationship type and interval utility type information given by the experts.The subjective weight determination was then transformed into a multiobjective constraint problemand the normalization coefficients for the index weight information matrices were obtained.Thenlinear weighting method was used to turn it into single objective constraint modelsand the index subjective weights were obtained.A numerical example was given to illustrate the method.The result demonstrates that this method can concentrate multitype index weight informationand can obtain warship formation overthehorizon antimissile threat estimation index subjective weight precisely.The method is easy for engineering realizationand provides a theoretical support for the design of overthehorizonantimissileassistant decisionmaking system for warship formation..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 21 (2013)
Sliding Model Control for NSV with BacklashLike Hysteresis
PANG Jie, CHEN Mou, and JANG Changsheng
A sliding mode control law is presented for nearspace vehicle (NSV) with backlashlike hysteresis to eliminate the influence of the input hysteresis.Firstlythrough analysis of backlashlike hysteresisthe hysteresis was decomposed into a certain linear part and an uncertain nonlinear part with known upper limit.ThenA sliding mode control law is presented for nearspace vehicle (NSV) with backlashlike hysteresis to eliminate the influence of the input hysteresis.Firstlythrough analysis of backlashlike hysteresisthe hysteresis was decomposed into a certain linear part and an uncertain nonlinear part with known upper limit.Thenthe sliding mode control law was designed by tracking the desired output trajectory to eliminate the influence of the hysteresis.And the stability of the system was proved by using Lyapunov method.Finallythe control law was applied to NSV attitude control.The sliding mode control law is presented for NSV with backlashlike hysteresis.Simulation results illustrate that the proposed control scheme can achieve effective performance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 26 (2013)
A Novel Adaptive Sliding Mode Control Framework Applied to Morphing Aircraft
ZHANG Chuantao, LIU Chunsheng, and HAN Hongwen
A novel adaptive integral sliding mode tracking controller is proposed for a morphing aircraft.The adaptive compensation algorithm is used to dispel the effect of parametric uncertainty on system stability.The perturbation can be projected into the matched and unmatched spaces.The additional integral term in the slidinA novel adaptive integral sliding mode tracking controller is proposed for a morphing aircraft.The adaptive compensation algorithm is used to dispel the effect of parametric uncertainty on system stability.The perturbation can be projected into the matched and unmatched spaces.The additional integral term in the sliding surface reduces the steady state error and also provides one more degree of freedomwhich minimizes the Hinfinity norm of unmatched perturbation.It is shown that the stability of the closedloop system can be guaranteed with the proposed adaptive sliding mode control strategy.The feasibility of designed control scheme is demonstrated by a morphing aircraft model application..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 31 (2013)
Effect of High Power Microwave Weapons on Radio Fuze of Ballistic Missiles
FENG Yanbin, LI Guolin, LU Cuihua, and YU Jing
The energy coupling of effects of High Power Microwave Weapon (HPMW) on radio fuze is mainly antenna coupling.The induced voltage of high power microwave on fuze antenna was chosen as criterion for the damage simulation model.Parameters of fuze electric components and circuits were also taken into accountwhich could bThe energy coupling of effects of High Power Microwave Weapon (HPMW) on radio fuze is mainly antenna coupling.The induced voltage of high power microwave on fuze antenna was chosen as criterion for the damage simulation model.Parameters of fuze electric components and circuits were also taken into accountwhich could be used for evaluating the destruction effect of the HPMW.The simulation results show that:within height of 1000 metersthe 1 GW coincidence HPMW can achieve the voltage to destroy the receiver and cause radio fuze failure.The result also shows that the method is feasible..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 34 (2013)
Automatic Image Segmentation Algorithm via Salient Edge Points
GAO Shangbing, YAN Yunyang, and ZHOU Jingbo
Image segmentation is an essential step in image analysis.A novel model was proposed for unsupervised segmentation of viewers attention object from natural images by using salient object edge points and localizing regionbased active model (LRAC).The salient edge points were firstly detected by the color boosting HarrImage segmentation is an essential step in image analysis.A novel model was proposed for unsupervised segmentation of viewers attention object from natural images by using salient object edge points and localizing regionbased active model (LRAC).The salient edge points were firstly detected by the color boosting Harris detector.The core saliency map was then proposed to obtain the foreground seeds from the salient edge points.Thenthe salient object edge points were determined by the foreground seeds.Finallythe salient object edge points were employed as the seeds of convex hull to generate the initial contour for our automatic object segmentation system.Extensive experiments results on a large variety of natural images prove that the proposed model can provide satisfactory segmentation performance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 38 (2013)
Vision Based Localization Algorithm for Unmanned Aerial Vehicles in Flight
MA Yuan, WU Aiguo, and DU Chunyan
In order to improve the localization accuracy for Unmanned Aerial Vehicle（UAV）in flighta localization algorithm is proposed based on machine vision.This algorithm can make UAV fly in the environment where Global Positioning System (GPS) signal is disturbed or is in failure.First of alltwo modified coordinate transforIn order to improve the localization accuracy for Unmanned Aerial Vehicle（UAV）in flighta localization algorithm is proposed based on machine vision.This algorithm can make UAV fly in the environment where Global Positioning System (GPS) signal is disturbed or is in failure.First of alltwo modified coordinate transformation algorithmsTrf1 and Trf2were obtained based on ScaleInvariant Feature Transform（SIFT）KDTree search image matching algorithm and the transformation between coordinate systems.With the help of Trf1the first coordinate transformation algorithmground coordinates of the target matched points were calculated out to build up a map of the flight environment.The second algorithmTrf2could calculate the realtime locations of UAV.Subsequentlythe localization algorithm in UAV flight was obtained based on the two modified coordinate transformation algorithmsand experiment was carried out based on the algorithms.Experiment results show that errors of calculated UAV positions are within 12 cmwhich demonstrates the accuracy of this method..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 42 (2013)
Impact of Sampling Time on Photon Counting Image
YIN Liju, SONG Jijiang, CHEN Qian, and SHENG Cuixia
In order to compensate for the human visual limitations in energyspectrum and resolution under weak light environmentthe avalanche photodiode (APD) was used to establish a photon counting imaging experimental platform.Under the condition that the set ambient light illumination was 104 lxthe sampling periods were reIn order to compensate for the human visual limitations in energyspectrum and resolution under weak light environmentthe avalanche photodiode (APD) was used to establish a photon counting imaging experimental platform.Under the condition that the set ambient light illumination was 104 lxthe sampling periods were respectively 10 ms2.6 ms and 780 μsthree groups of the photon counting image sequenceswhich could demonstrate the target characteristicswere obtained.The technique of multiframe accumulation was applied to the target detection according to the different detection requirements.The appropriate number of the frames can be selected to ensure higher frame frequency..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 47 (2013)
An Improved SRUKF for Attitude Estimation Based on MRPs
XIAO Wenjian, and LU Ping
In view of the shortage of redundancy when using quaternion to describe attitudethe Modified Rodrigues Parameters (MRPs)which is a threedimensional independent vectoris put forward for attitude estimation.The attitude estimation algorithm based on Square Root Unscented Kalman Filter (SRUKF) is established with the In view of the shortage of redundancy when using quaternion to describe attitudethe Modified Rodrigues Parameters (MRPs)which is a threedimensional independent vectoris put forward for attitude estimation.The attitude estimation algorithm based on Square Root Unscented Kalman Filter (SRUKF) is established with the outputs of accelerometer and magnetometer as observation vectors.In order to avoid the accelerometer and magnetometer interference by environmentan expert system is introduced to the SRUKF algorithm.The expert system is designed to estimate the information of acceleration and magnetic field to adjust the measurement noise matrix.The experiment results indicate that the algorithm successfully makes the static attitude accuracy less than 0.05°and static heading accuracy less than 0.1°.And it makes the dynamic attitude accuracy less than 0.5°and dynamic heading accuracy less than 1°.The optimization effect is improved significantly..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 52 (2013)
Hybrid Simulation of Morale in Combat
ZHU Jiang, LI Sanping, CHEN Wei, and CHEN Jun
Morale has the nature of complexityemotionality and unpredictability.It is difficult to construct a model of the morale that can reflect the complex interaction using traditional simulating method of operation.As a resultmorale in the combat is hard to be explored and evaluated.This paper researches the morale from tMorale has the nature of complexityemotionality and unpredictability.It is difficult to construct a model of the morale that can reflect the complex interaction using traditional simulating method of operation.As a resultmorale in the combat is hard to be explored and evaluated.This paper researches the morale from the sociology theoryincluding its generation and propagationand proposes a hybrid simulation method that combines System Dynamic (SD) with MultiAgent System (MAS) method.MicrocosmicallyMAS method is used to reflect the interaction among fighters and the course of affecting morale:MacrocosmicallySD method was used to reflect the influence of the tactical psychology on morale and whole war in the countercombat process.Moreovera hybrid simulation experiment platform based on Netlogo is proposedso that microscopic and macroscopic experimental data and conclusion can be utilized mutually.It is beneficial to the research on laws of the morale in war and solve the modeling and evaluating of the morale in combat.The experiment shows that it is an effective method..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 56 (2013)
On Switching Suppresser for Restraining Pilot Induced Oscillations
MENG Jie, CHE Wanfang, BO Tao, and LAN Xinzhang
When rate limiter is saturated in flight control systemtime delay would occur.The pilot induced oscillations (PIO) may come into being on condition that the pilot operates incorrectly.A simplified model of rate limiter was establishedand the switching suppresser designed by using logical conditions method was anatomiWhen rate limiter is saturated in flight control systemtime delay would occur.The pilot induced oscillations (PIO) may come into being on condition that the pilot operates incorrectly.A simplified model of rate limiter was establishedand the switching suppresser designed by using logical conditions method was anatomized.The response properties of the openloop frequency and phase compensation ability of the suppresser were studied by using describing function.The openloop response properties of the suppresser to sine wave and bias input were discussed.A switching suppresser to prevent PIO was proposedand a mathematical model of closedloop aircraftpilot system with the derivative switching suppresser was set up.The step tracking tasks were simulated to study the performance the switching suppresser and DASA anticipatory control suppresser.The simulating results demonstrate that derivative switching suppresser effectively reduces the possibility of PIO..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 61 (2013)
Quaternion Based MicroDoppler Simulation of Ballistic Targets
SUN Yongjian, CHENG Zhen, and FU Ying
Micromotion kinetics modeling is a key and fundamental issue of ballistic target microDoppler feature research.At presentthe modeling techniques based on Euler anglesEulerRodrigue formula and homogeneous coordinates have some problems such as “gimbal lock”singularity and computational complexity.Quaternion methodMicromotion kinetics modeling is a key and fundamental issue of ballistic target microDoppler feature research.At presentthe modeling techniques based on Euler anglesEulerRodrigue formula and homogeneous coordinates have some problems such as “gimbal lock”singularity and computational complexity.Quaternion method can express arbitrary rotation in 3D space intuitively and overcome shortcomings of the existing methods by using 4 values instead of the 9 of the corresponding matrix.The quaternion based precession and wobbling microDoppler frequency expressions of ballistic targets are presented after derivation.It simplifies the calculation of target microDoppler in that reducing matrix operations.The simulation results prove that the quaternion based micromotion modeling method is valid and provides a scientific basis for microDoppler extraction and recognition of ballistic targets..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 65 (2013)
Comprehensive System Error Estimation Algorithm Based on Cooperative Target for Mobile ShipBorn Platform
CHEN Linyuan, HE Jiazhou, LUO Shuangxi, and AN Jin
Comprehensive system error estimation on mobile platform sensor registration is a difficult problem.In order to estimate the comprehensive system error for the mobile platform of shipsthis paper presents two methods using the highprecision GPS information obtained through cooperative target.In the first methodan obsComprehensive system error estimation on mobile platform sensor registration is a difficult problem.In order to estimate the comprehensive system error for the mobile platform of shipsthis paper presents two methods using the highprecision GPS information obtained through cooperative target.In the first methodan observation model was built up to decouple error component in equivalent error model based on itand the approximate equivalent value was used to estimate each component of comprehensive system error.The first method can overcome the shortage of equivalent error model.In the second methodthrough analyzing the effect of error component on the location precision and linearizing the influence functionthe observation function was established and estimation of comprehensive system error was implemented.Simulation is made for two situationsand the simulation results demonstrate that each method has its advantages and disadvantages.On the wholethe performance of the second method is better.The position precision is improved greatly after error correction using the estimation results of these methods..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 70 (2013)
A Hardware Implementation to Emulate Traffic Characteristics Based on Timed Automata Models
CHEN Ya, LI Qiao, and ZHAO Luxi
In realtime networkstraffic characteristic with burstiness constraints is one of the key QoS (Quality of Service) factors in the worst case.Using timed automata to model the traffic can reflect the uncertainty under the constraints by arrival curves.We adopted hardware description language to describe timed automata In realtime networkstraffic characteristic with burstiness constraints is one of the key QoS (Quality of Service) factors in the worst case.Using timed automata to model the traffic can reflect the uncertainty under the constraints by arrival curves.We adopted hardware description language to describe timed automata formal modelsand studied correspondence between hardware logic and timed automata model.The method took the advantages of programmable array chipsfully represented the concurrent behaviors between timed automataand then implemented the hardwareintheloop testing and detection.With such a methodwe simulated the virtual link traffic generation in realtime network.Some typical test results indicated that the model can constrain the traffic characteristics of virtual linkwhich proves the feasibility of the hardware implementation method..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 78 (2013)
Adaptive Control and Flight Visual Environment Simulation Verification of Morphing Aircraft
HAN Hongwen, LIU Chunsheng, and ZHANG Chuantao
This work specifically studies a transformation of morphing aircraft from loitering to dashing.The nonlinear dynamic functions of the morphing aircraft in the different morphing process are derived.By considering the nonlinearity and uncertainties of parameter caused by the variable structurean adaptive attitude contrThis work specifically studies a transformation of morphing aircraft from loitering to dashing.The nonlinear dynamic functions of the morphing aircraft in the different morphing process are derived.By considering the nonlinearity and uncertainties of parameter caused by the variable structurean adaptive attitude control law was designed for two flying models of morphing aircraft.The feasibility and effectiveness of this method were proved based on Lyapunov theory.The flight environment system for simulation was established based on VC++ and OpenGL.And data from Simulink was successfully passed to the simulation system based on VC++/Simulink program.The simulation results shows that the technologies proposed provide an effective way to simulate different flying procedure of morphing aircraft..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 84 (2013)
Design and Implementation of Situation RealTime Visual Display System Among SpaceSky and Ground
XU Jun, XU Lianjun, LIU Zhenyu, YU Lei, and WANG Lingyan
In order to make the observer survey intuitively the realtimestereoscopic situation among spacesky and groundan realtime and visualized display system is proposedwhich combines effectively 2D and 3D situation display.This paper describes the requirementsoverall functions and hierarchical structure of the system In order to make the observer survey intuitively the realtimestereoscopic situation among spacesky and groundan realtime and visualized display system is proposedwhich combines effectively 2D and 3D situation display.This paper describes the requirementsoverall functions and hierarchical structure of the system in detail.Several key technical issues in the system design are discussed：achieving realtime data operation with the AgConnect API interface functions；solving problems such as texture map that can be loaded in 3D model with the help of various means；designing and developing abnormal data preprocessing program by use of a sliding window detection method；and realtime tracking dynamic objects based on the principle of coordinate transformation.This system was tested and applied in a certain information warfare equipment against training successfullywhich shows its superior performance and wide application prospects..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 88 (2013)
DelayJitter Test of Virtual Links in AFDX Network
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
For ADFX network with virtual Link mechanismbandwidth resources can be allocated and isolated effectively so that the realtime performance of AFDX network is greatly improved.In this papera method for testing delayjitter in AFDX network based on virtual links was proposed.The theoretical value was obtained through For ADFX network with virtual Link mechanismbandwidth resources can be allocated and isolated effectively so that the realtime performance of AFDX network is greatly improved.In this papera method for testing delayjitter in AFDX network based on virtual links was proposed.The theoretical value was obtained through network calculus theoryand was compared with the actual test value thus comprehensive evaluation was realized and the credibility of analysis results was enhanced..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 93 (2013)
An Adaptive Temporal Error Concealment Method Based on H.264/AVC
WANG Lei, and HAN Qian
An adaptive temporal error concealment method is proposed based on H.264/AVC in order to efficiently estimate the motion vectors with lost macro blocks.The method makes full use of the motion vector information of the blocks around the lost blocksand can adaptively choose different algorithms to conceal errors accordiAn adaptive temporal error concealment method is proposed based on H.264/AVC in order to efficiently estimate the motion vectors with lost macro blocks.The method makes full use of the motion vector information of the blocks around the lost blocksand can adaptively choose different algorithms to conceal errors according to the division.Experiments show that the visual quality of corrupted video is efficiently improved with the proposed method..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 97 (2013)
Effects of the Rotating Platform on AntennaArray Angle Simulation Precision
YANG Lidu, ZHANG Defeng, WANG Lidong, and HAN Guoqiang
The rotating platform and the antennaarray are two main parts of RadioFrequency (RF) Simulation Test System.The error of RF Simulation Test System is represented by the angle simulation precision of the antennaarraywhich may be influenced by the error of the rotating platform and the incoincidence between the rotaThe rotating platform and the antennaarray are two main parts of RadioFrequency (RF) Simulation Test System.The error of RF Simulation Test System is represented by the angle simulation precision of the antennaarraywhich may be influenced by the error of the rotating platform and the incoincidence between the rotating platform center and the spherical center of the antennaarray.The mathematic models of static and dynamic error of the rotating platform are analyzed and calculated out based on the operational principle of the antennaarray and motion performance of the rotating platform.Finallythe simulation results about rotating platforms effects on the angle simulation precision of the antennaarray angle are presented..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 100 (2013)
An Improved Extend Kalman Filtering Algorithm Based on Asymptotic Stationary Process
[in Chinese], [in Chinese], and [in Chinese]
In multitarget trackingthe measurement noise is not an absolute Gaussian distribution because of clutter and the undulation of RCS.A model of noise was studied based on asymptotic stationary processand a confidence function was introduced.A method that could feed back the confidence degree of the measured value to tIn multitarget trackingthe measurement noise is not an absolute Gaussian distribution because of clutter and the undulation of RCS.A model of noise was studied based on asymptotic stationary processand a confidence function was introduced.A method that could feed back the confidence degree of the measured value to the filtering process was proposed.By correcting the gain matrix and covariance matrixthe effect of measuring noise fluctuation on filtering was reduced.The method could enhance the ability of the noise compression and restrain the peak error.Simulation result verifies the validity and feasibility of the method..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 105 (2013)
Detection Coverage Range of Airborne Bistatic MIMO Radar to Stealthy Targets
ZHANG Xiao, WU Jun, PENG Fang, and DENG Youwei
To solve the problem of the stealthy object detectionthe judging inequality of radar detection based on the bistatic MIMO radar equation was utilized to make a research on the radars detection coverage to stealthy object.Taking the F117A fighter as a typical stealthy objectthe detection area was divided by the gridTo solve the problem of the stealthy object detectionthe judging inequality of radar detection based on the bistatic MIMO radar equation was utilized to make a research on the radars detection coverage to stealthy object.Taking the F117A fighter as a typical stealthy objectthe detection area was divided by the grid splitting algorithm.By calculating the bistatic radar across section of the stealthy object at each pointthe object detection coverage for bistatic MIMO radar could be obtained.The relationship among the detection coveragethe baseline lengththe number of the transmitting antenna and phase coherent accumulation was determined by experiment.The experimental result shows that the bistatic MIMO radar is superior to the conventional bistatic radar on detection range to stealthy target..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 20, Issue 11, 109 (2013)
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