The invention relates to a
laser radar echo wave
processing system and method. The
laser radar echo wave
signal processing system comprises: a transmitting module for transmitting pulse
laser, a receiving module used for receiving reflected light, a sampling module used for sampling analysis and a main control and
signal processing module, wherein the transmitting module comprises a laser drivingcircuit, a laser device and a
light beam shaping module; the receiving module comprises a receiving optical lens and a
photodetector; the sampling module comprises a
voltage threshold setting circuitand a
voltage comparison circuit; the main control and
signal processing module is used for providing trigger signals for the laser transmitting module, collecting
echo time width signals, discriminating dark counting
noise and real echo signals, and performing
flight time measuring operation. Thus, according to the laser
radar echo wave processing
system and method disclosed in the present invention,
noise can be filtered by adding a screening mechanism during
echo signal processing operation, and
false alarm rates can be lowered without increasing system
power consumption and lens apertures.