半正弦波相关型三维激光雷达

提出了基于半正弦波-方波相关法的凝视成像三维激光雷达.用傅里叶级数展开对新方法进行了分析.理论分析表明,半正弦-方波相关可以在抑制高频噪音的同时加大调制的交流分量.基于新相关方法的探测系统可以在不损失测距准确度的条件下可以获得更大的输出光功率从而获得更大的探测距离.采用基于新方法的探测装置对~70 m外约100 m2的目标进行了探测实验.实验结果表明,基于新方法的激光雷达在60 m处的分辨率约为0.3 m,从而验证了理论分析的结论.

Fixing Laser Radar Based on Half-sine Correlation Method

Fixing imaging 3D laser radar based on half-sine to rectangle correlation method was presented.Fourier series were employed to analyze half-sine to rectangle correction process.Theoretical analysis shows that half-sine to rectangle correlation can suppress high frequency noise and increase alternative component of modulation at the same time.The new method can achieve larger laser output power,longer measuring range while without suffering accuracy decrease.100 square meters targets in a distant about 20~70 m were detected by equipment based on the new method.The experiment shows that laser radar based on new method get an accuracy about 0.3 meters in a distance about 60 meters.The experiment result verifies the theory result.