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Variable Pulse Rate (VPR) ;X2M+f1H0tLIDAR 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.www.s-star.com.tw(q%L&G$^#D*L/f&H!x
.a4^-n3~3X(o%J+r;v!o行車紀錄器、測速器、電子偵測、雷射防護罩、GPS行車影像記錄器、GPS測速、汽車雷達、測速照相、南極星、征服者、至尊、V1、情聖一號、復國者、全頻雷達測速器、雷射測速Some units transmit laser pulses in fixed intervals. For example, a unit transmitting 200 pulses per second would send one pulse every 1/200th of a second. %R7Q&{3p2O'g-|行車紀錄器、測速器、電子偵測、雷射防護罩、GPS行車影像記錄器、GPS測速、汽車雷達、測速照相、南極星、征服者、至尊、V1、情聖一號、復國者、全頻雷達測速器、雷射測速-d9Z8U+h1M+N7p s(M"v8K
Other units vary their pulse rate. They may send the same amount of pulses over time, but in an irregular and somewhat erratic pattern. This is a variable pulse rate. 0y+U)R;?:e6A0b:n/h9b2`行車紀錄器、測速器、電子偵測、雷射防護罩、GPS行車影像記錄器、GPS測速、汽車雷達、測速照相、南極星、征服者、至尊、V1、情聖一號、復國者、全頻雷達測速器、雷射測速--------------------------- !f(}'y(h$E2Agoogle 翻譯0K#W+|8a t8u4j#e8l&^
LIDAR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。3x#D6W(z5D4o%i/h