VPR
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Variable Pulse Rate (VPR)
5f0S6? D:i'H9R1Y-hLIDAR units work by sending out a steady stream of laser pulses. Since the speed of light is known, the gun clocks how long it takes for each pulse to travel out and return back which gives it a measure of distance, and then it uses several pulses in a row to measure the change in distance over time and then calculate speed.
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Some units transmit laser pulses in fixed intervals. For example, a unit transmitting 200 pulses per second would send one pulse every 1/200th of a second.
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Other units vary their pulse rate. They may send the same amount of pulses over time, but in an irregular and somewhat erratic pattern. This is a variable pulse rate.
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,^!o9a5z6w5S#]%N.A5K#N%xLIDAR單位工作通過發出激光脈衝源源不斷。由於光的速度是已知的，槍時鐘需要多長時間的每個脈衝的旅行出和返回這使得它距離的量度，然後它使用幾個脈衝連續測量距離的變化隨著時間的推移和然後計算速度。
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有的單位發射激光脈衝在固定的時間間隔。例如，一個單元發送200個脈衝每秒將發出一個脈衝每1 /第200秒。
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其他單位發生變化的脈搏。它們可發送脈衝的相同的量隨著時間的推移，但在一個不規則的，有點不穩定圖案。這是一個可變的脈衝速率。
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本帖最後由 thing 於 2016-1-15 19:24 編輯 ]
