摘要
在三角波雷达信号处理流程中,传统的频谱配对方法由于存在FFT栅栏效应,差频信号的频率估计并不准确,进而影响到测量精度。将能量重心校正算法引入到雷达信号处理流程中,可以得到新的频谱配对方法即能量重心配对法。针对能量重心配对法存在的估计值浮动较大的问题,进一步提出了优化的能量重心配对法。信号处理流程仿真,证明了能量重心配对法和优化的能量重心配对法在并不增加太大的运算量的条件下,能够提高频谱配对性能,提高雷达测量精度。
In the triangle wave radar signal processing flow,the traditional spectrum matching method has the FFT fence effect,and the frequency estimation of the beat frequency signal is not accurate,which affects the measurement accuracy.The energy center of gravity correction algorithm is introduced into the radar signal processing flow,and a new spectrum matching method,namely the energy center of gravity matching method is proposed.The energy center of gravity matching method is further proposed for the problem that the estimated value of the energy center of gravity matching method is large.The signal processing flow simulation proves that the energy center of gravity matching method and the optimized energy center of gravity matching method can improve the spectrum matching performance and improve the radar measurement accuracy without increasing the computational complexity.
作者
宋卫东
李松
尹辉
史方明
SONG Wei-dong;LI Song;YIN Hui;SHI Fang-ming(Shanghai Radio Equipment Research Institute,Shanghai 201109,China)
出处
《制导与引信》
2018年第4期21-26,共6页
Guidance & Fuze
关键词
差频信号
频谱配对
能量重心校正法
能量重心配对法
beat frequency signal
spectrum matching
energy center of gravity correction algorithm
energy center of gravity matching method
作者简介
宋卫东(1992-),男,助理工程师,硕士,主要从事雷达信号处理技术相关研究。
