In phase shift laser rangefinder, the received power determines the signal to noise ratio, conse quently the depth of field and the accuracy, so it is of importance to calculate the received power accurately.
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- 在相位式激光測距中，接收光功率的大小直接決定了測量信噪比，從而決定了測量范圍和測量精度，因此如何準確地計算出接收光功率的大小，是測距技術(shù)中一個(gè)非常重要的問(wèn)題。
