Laser radar emits narrow pulse signal

which produces echo after exposure to target object

the echo can be converted to electrical pulse signal by avalanche photoelectric sensor. Aiming at nanosecond level electric pulse

propose 8 GSPS high-speed parallel sampling scheme and channel correction solution. Simulation and experimental results show that avalanche photoelectric sensor performs narrow pulse responsiveness very well

channel correction scheme weakens effect of channel mismatch on system. System completes real-time sampling of4 ns narrow pulse echo signal.