介绍了基于相位法的测距方法，即方波与方波相关法。提出了测量方案和算法。并用Matlab的Simulink工具对测距原理进行了仿真，还对测距精度进行了分析。从理论上证明了此种相位法测距的可行性，为实际激光测距系统的研制奠定了基础。%A laser range finder method based on square-square wave measurement is proposed. The architecture of the system and the principle of phase ranging algorithm are discussed with Matlab Simulink simulation results for one-dimensional distance. The imaging precision is also analyzed. The simulation shows that this algorithms and principles are effective and useful for research of phase-shift laser rangefinder.
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