目标形状对激光测距机测距能力影响的数值模拟研究  

Numerical Simulation about Effect of Target Shape on Laser Range Finder's Ranging Performances

作　　者：王秀生[1] 牛燕雄[1] 张鹏[1] 段晓峰[1] 

机构地区：[1]军械工程学院光学与电子工程系,石家庄050003

出　　处：《激光与光电子学进展》2005年第11期28-31,34,共5页Laser & Optoelectronics Progress

摘　　要：根据激光测距方程,引入了等效散射面积的概念,分别建立了对点目标、扩展目标和线形目标测距的理论模型。通 过数值计算,研究了目标距离、束散角与探测器接收功率及信噪比的函数关系,讨论了不同目标形状对激光测距性能的影响。 结果表明,目标形状在较近距离情况下对测距机的接收功率和信噪比有显著影响,而在较远距离时,其影响可忽略。The theoretical models of point target, extended target and line target are established based on the concept of equivalent scattering area and laser ranging equation. The received power and signal-to-noise ratio（SNR） of Laser Range Finder （LRF） detector as a function of the target distance and divergence of the beam are simulated, and the effect of different target shape on LRF＇s ranging performances is discussed. The results show that the target shape can affect the ranging performance evidently relatively near, but it can be ignored in far distance.

关 键 词：激光测距机 目标形状 测距性能 数值模拟 激光测距机 数值模拟研究 测距能力 形状 目标距离 接收功率 测距方程 散射面积 数值计算 

分 类 号：TN959.4[电子电信—信号与信息处理] P225.2[电子电信—信息与通信工程]