Fig. 1. Principle of clock phase shift sampling. (a) Low-level structure diagram; (b) sampling timing diagram

Fig. 2. Block diagram of multi-beam radar system based on FPGA

Fig. 3. Transmission sequence of multi-beam single-photon radar signal

Fig. 4. Time resolution test results of single channel

Fig. 5. Measurement precision. (a) TDC measurement precision of 100 channels; (b) statistical graph of measurement precision

Fig. 6. Error calibration of 100 channels measurement system

Fig. 7. Ranging precision calculated by experiment. (a) Scatter plot; (b) histogram