Modeling research on angle measurement accuracy of four-quadrant detector of laser seeker

Xiong Qiu; Shicheng Wang; Zhiguo Liu; Weibo Xu

doi:10.3788/IRLA20190453

Journals >Infrared and Laser Engineering >Volume 49 >Issue 7 >Page 20190453 > Article

Infrared and Laser Engineering
Vol. 49, Issue 7, 20190453 (2020)

Modeling research on angle measurement accuracy of four-quadrant detector of laser seeker

Xiong Qiu, Shicheng Wang, Zhiguo Liu, and Weibo Xu

Author Affiliations

火箭军工程大学，陕西西安 710025

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DOI: 10.3788/IRLA20190453 Cite this Article

Xiong Qiu, Shicheng Wang, Zhiguo Liu, Weibo Xu. Modeling research on angle measurement accuracy of four-quadrant detector of laser seeker[J]. Infrared and Laser Engineering, 2020, 49(7): 20190453 Copy Citation Text

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Fig. 1. Schematic diagram of calculation and analysis of deviation components 偏差分量的计算分析原理图

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Fig. 2. Relationship between beam deflection angle and center coordinates of spot

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Fig. 3. Relationship between and 与的关系

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Fig. 4. Relationship between and 与的关系

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\begin{document}$\sigma ({E_\psi })$\end{document}/mrad	\begin{document}${\psi _f}$\end{document}/rad
\begin{document}$\sigma ({E_\psi })$\end{document}/mrad	0	0.005	0.01	0.015	0.02
r=0.7 mm	2.2445	2.3532	2.6280	2.9541	3.1742
r=0.8 mm	2.5758	2.6716	2.9236	3.2482	3.5453
r=0.9 mm	2.9097	2.9952	3.2263	3.5404	3.8634
r=1 mm	3.2465	3.3236	3.5360	3.8358	4.1659

Table 1. Relationship between

$\sigma ({E_\psi })$

and

${\psi _f}$

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\begin{document}$\sigma ({E_\psi })$\end{document}/mrad	SNR
\begin{document}$\sigma ({E_\psi })$\end{document}/mrad	10	30	50	70	90
	2.272 6	0.757 5	0.4545	0.3247	0.2525
	2.684 9	0.895 0	0.5370	0.3836	0.2983
	3.120 6	1.040 2	0.6241	0.4458	0.3467

Table 2. Relationship between

$\sigma ({E_\psi })$

and

$SNR$

Xiong Qiu, Shicheng Wang, Zhiguo Liu, Weibo Xu. Modeling research on angle measurement accuracy of four-quadrant detector of laser seeker[J]. Infrared and Laser Engineering, 2020, 49(7): 20190453

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