论文部分内容阅读
针对消防用光电观瞄系统对激光测距的高精度要求,提出了一种提高激光测距精度的方法。该方法采用基于FPGA的延迟线内插技术来减小计数量化误差,并且以差分GPS标定数据为基准,运用分段线性拟合的方法对实测数据进行修正,通过与差分GPS标定数据比对试验验证表明,该激光测距系统精度可以达到0.8m,满足消防用光电观瞄系统≤1m的测距精度要求。
In view of the high precision of laser sighting system for laser fire sighting, a method to improve laser ranging accuracy is proposed. This method uses the FPGA-based delay line interpolation technique to reduce the quantization error of the counting. Based on the differential GPS calibration data, the method of piecewise linear fitting is used to correct the measured data. By comparing with the differential GPS calibration data Verification shows that the accuracy of the laser ranging system can reach 0.8m, to meet the requirements of distance measuring precision ≤1m of the optical sighting system for fire protection.