Longwei Pan, Yanyi Wang, Yuxuan Tan, Yuangang Wang, Kaihui Wang, Wen Zhou. Photonics-Aided Quadruple Frequency W-Band Linear Frequency Modulated Signal Sensing and Ranging[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0906006
- Laser & Optoelectronics Progress
- Vol. 61, Issue 9, 0906006 (2024)
Fig. 1. Schematic diagram of linear frequency modulated continuous wave radar ranging. (a) Structure of LFMCW radar ranging system; (b) frequency of transmitted and received LFM signal
Fig. 2. Schematic diagram for Photonics-aided generation of quadruple frequency W-band LFM signal. (a)‒(d) Simplified spectra during signal conversion
Fig. 3. Schematic diagram for photonics-aided de-chirping. Insert: simplified spectrum of echo signal
Fig. 4. Experimental setup for photonics-aided quadruple frequency W-band LFM signal sensing and ranging. (a) MZM1 output optical spectrum; (b) FBG output optical spectrum
Fig. 5. De-chirped echo spectrum in 50 cm ranging experiment
Fig. 6. De-chirped echo spectrum in 40 cm ranging experiment
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Table 1. Key device parameters in the experimental setup
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