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在地面上测量车辆行驶距离的方法有两种:这就是利用里程计或加速度计.里程计测量车轮的转数并输出一系列脉冲,但里程计的刻度系数易受路况的影响,需要不断地进行修正,而加速度计具有短时间内高精度测量的优点.本文主要叙述了里程计与加速度计组合导航的设计原理、公式及数字仿真结果。
There are two ways to measure the distance traveled by a vehicle on the ground: this is the use of an odometer or accelerometer that measures the number of revolutions of the wheel and outputs a series of pulses, but the scale factor of the odometer is susceptible to road conditions and requires constant And the accelerometer has the advantage of high precision measurement in a short time.This paper mainly describes the design principle, formula and numerical simulation results of the combined navigation of the odometer and accelerometer.