Quan Zhang, Qingchen Xu, Xiong Hu, Xiaocheng Wu, Junfeng Yang. Coherent Optical Communication Speed Measurement Method Based on Modulated Code Element Doppler Frequency Measurement[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0906003
- Laser & Optoelectronics Progress
- Vol. 61, Issue 9, 0906003 (2024)
Fig. 1. Schematic of coherent optical communication velocity measurement method based on modulated code element Doppler measurement
Fig. 2. A case of simulation of the whole flow of velocity measurement method. (a) Baseband signal in-phase component waveform; (b) initial removal of jump waveforms; (c) phase-continuous Doppler signal output; (d) phase linear fitting results (
Fig. 3. Velocity measurement error of 400 s duration simulation signal
Fig. 4. Doppler frequency measurement results and velocity measurement errors of radial velocity linear change signal. (a) Doppler frequency measurement results; (b) velocity measurement error
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Table 1. Simulation results of velocity measurement uncertainty under different signal-to-noise ratio, radial velocity and velocity change rate
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