激光近程动态测距技术研究

【作者】 辛煜；

【导师】 陈延如；

【作者基本信息】 南京理工大学 ， 光学工程， 2004， 硕士

【摘要】 激光近程动态测距技术是国防急需的关键技术之一，在民用领域也有广泛用途。文中在对激光测距技术深入研究的基础上，指出现有动态测距体制普遍存在结构复杂、测距精度不高、测距精度易受目标特性影响等缺点并分析了激光脉冲测距和相位测距法应用于近距离动态测距时存在的困难。为克服这些问题，论证了近程动态三角法多点成像定位测距的可行性，导出了三角法多点成像定位测距的分辨能力与各光学系统之间的相对位置、结构参数之间的关系式，提出了激光近程动态三角法多点成像定位测距的原理设计方案，完成了接收光学系统与发射光学系统、信号处理电路的设计。实验室条件下的模拟实验结果与理论分析相一致。更多还原

【Abstract】 Real-time laser short range finding is a key technique for military uses and can also be widely used in commercial applications. With deep analysis of laser range finding techniques, disadvantages of current method for real-time short range finding are given out which includes too much complicated structures, long measuring time inadequate precision and sensitivity to the reflectivity of the target. Pulsed time of flight and phase shift methods are also found unsuitable for real-time short range finding. In order to solve these problems, feasibility of triangulation method for real-time short range finding is discussed, the relationship between distance resolution and optical structure and parameters is derivated, and design precept of the measuring system is introduced subsequently including laser transmitting devices, receiver optics and signal process circuits. The experimental demonstrations coincides with theoretical prediction.更多还原