A Method for Increasing the Time Measurement Precision in Pulse Laser Ranging

The pulse laser range finder is widely used,in which to improve the ranging accuracy is one of the core technology.In order to realize the pulse laser rangefinder accuracy,the design puts forward a kind of method of time-interval measurement.Using single-chip microcomputer control time of firing pulse chips to measure the delay of firing pulse and return pulse signal,the time measurement results of chips automatic calibration is used,at the same time,the proportion of fixed point for judging can reduce the timing signal changes.Through measurement,dot results show that this method simplifies the device design and achieve high accuracy,with the analysis of the influence of the pulse laser ranging accuracy of error.