摘要
为了使雷达高度表在利用宽波束测高的同时增加测量飞行器自身速度的功能,达到一表多用的目的,提出了一种利用宽波束雷达信号进行多普勒测速的方法。采用对高度表的回波信号进行时域和频域相结合的处理方法,利用多普勒公式实现测速功能。通过建立测速仿真系统,对宽波束测速算法进行仿真,得到的测速误差小于1m/s,达到一般测速精度的要求。
A method of measuring airborne velocity using Doppler technology with width beam radar signal is presented. It realizes the aim of using one radar altimeter to measure velocity and height both. Time domain and frequency domain hybrid algorithm is used to process the returns of radar signal, using Doppler formula to realize the function of measuring velocity. A simulation system is built to simulate the algorithm of measuring velocity using width beam radar signal, and get the error less than lm/s, which satisfies the general precision requirement of measuring velocity.
出处
《信息与电子工程》
2005年第2期126-128,共3页
information and electronic engineering
关键词
电子技术
测速
多普勒技术
雷达高度表
宽波束雷达信号
electronic technology.
measuring airborne velocity： Doppler technology： radar altimeter： width beam radar signal
