Dynamic modulation of laser and laser bean, and offset to targetreflection coefficient: laser bean is shaped and collimated to round and slender beam by using of the semiconductor laser.
激光器件及激光束的动态调制，目标反射系数补偿：采用半导体激光器，经过整形、准直成圆细光束。
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The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, targetreflection, receiver sensitivity and so on.
In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.