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.

激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。

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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.

在此基础上，提出了一种采用半导体激光器作光源，PS D作光电接收器的尺寸测量系统，并通过实验对其精度进行了验证。

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