摘要
米波雷达波束较宽,多径信号的存在将会给雷达测高带来严重影响,并且多径信号与直达波信号是相干的,这就造成米波雷达测高比较困难。由于广义MUSIC算法为能直接处理相干信号的阵列超分辨算法,因此可以将该算法应用于米波雷达测高当中。该文在广义MUSIC算法的基础上,结合雷达测高的一些特点,提出一种新的算法。新算法不但降低了运算量,而且还具有良好的性能。计算机仿真结果证实了新算法的优越性。
The beam of meter-wave radar is rather board, the exist of multi-path signals coherent with the direct arrival signal will cause badly affect to the altitude measurement, so it is more difficult for meter-wave radar to measure the altitude of the target. The general MUSIC algorithm is a super-resolution algorithm that can handle coherent signals, so it can be used in the height-finding of meter-wave radar. Based on the general MUSIC algorithm, a new algorithm for altitude measurement in the height-finding environment is presented. The new algorithm not only has a low computation complexity, but also has a good performance. Computer simulation results demonstrate the merits of the new algorithm.
出处
《电子与信息学报》
EI
CSCD
北大核心
2007年第2期387-390,共4页
Journal of Electronics & Information Technology
关键词
广义MUSIC算法
波达方向
相干源
米波雷达
测高
General MUSIC algorithm
Direction-of-arrival
Coherent source
Meter-wave radar
Height-finding
