摘要
幅相补偿是多频带雷达信号融合一维距离成像中的关键问题,其补偿的精度直接影响了信号融合的最终效果。分析了多雷达信号融合中的幅度相位模型,并基于旋转不变技术提出一种新的幅度相位补偿参数估计方法。该方法首先对幅相补偿模型进行预处理,使得处理后的阵列导向矢量具有旋转不变特性,然后采用ES-PRIT-LS算法同时估计多个雷达的幅相补偿参数。仿真结果表明该算法具有较高的估计精度,受噪声影响较小。
Amplitude-phase compensation parameters estimation is an important problem in high range resolution profile formation of multi-band radar signal fusion. Compensation precision directly makes a great impact on the effect of signal fusion. The amplitude^phase compensation model of multi-band radar signal fusion is ana- lyzed and the new amplitude-phase compensation algorithm based on the ESPRIT is presented. Firstly, the amplitude-phase model is pre-proeessed, so that the array steering vector has the rotational invariance characteristic. So the ESPRIT-LS algorithm is applied to estimate amplitud-phase compensation parameters of multiple radars. The simulation results show the algorithm has higher estimated precision and is little affected by noise.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2006年第3期350-354,375,共6页
Systems Engineering and Electronics
关键词
信号融合
幅相补偿
最小二乘
signal fusion
amplitude-phase compensate
least square
