The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
Before designing the laser radar system, we have to understand the relationship of laser transmitter variable and laser receiver variable.
在激光雷达系统设计确定之前，必须很好地了解激光发射机和接收机各变量之间的均衡关系。
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On the above basis, a dimension measuring system that USES semiconductor laser as its light source and PSD as the receiver, is proposed. Its precision is verified by experiments.