脉冲激光雷达的时间间隔测量综述

摘要

The principle of distance measurement in pulsed laser radar is introduced and its key technology of time-of-flight( TOF)is discussed.TOF in laser pulsed distance measurement can be measured analog ically,digitally,or using an interpolation method.The interpolation method,using the digital method combined with an interpolation method of three kinds,is a su itable way to employ a wide measurement range,high precision and accuracy,and a fast measurement speed for fast laser radar.And the three interpolation methods: delay-line interpolation,the Nutt and dual Nutt pr inciples,and the digital dual Vernier method,are described in detail in this paper.%文中阐述了脉冲激光雷达测距的原理,并综述了其核心技术&& 脉冲飞行时间测量技术及其最新进展.详细介绍了数字插入测量法的原理与其三种不同的插入方法:延迟线法、模拟插入法和差频测相法,以及它们各自的测量精度与应用领域.