摘要
阵列通道幅相不一致性严重影响测向性能。基于辅助源的相关校正理论,研究了通过在天线馈电口输入辅助信号,再对信号求相关来实现对阵列通道不一致性的校正;并分析了基于多基线数字干涉仪体制的测向原理,利用五元圆形天线阵列估计出了地面目标的到达角。此外,还讨论了所有算法的DSP实现,计算机模拟证实了方法的有效性。
The performance of direction-of-arrival (DOA) estimation algorithms is seriously degenerated when there are errors in array manifold. A correlative based technique, which estimates and calibrates the circle array antenna channel uncertainty used an auxiliary source, is given in this paper. Moreover, the high-accuracy DOA estimation algorithm using digital interferometer and all these algorithms DSP implementations are also studied. The efficiency of the method is confirmed by computer simulation.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2004年第5期511-514,共4页
Journal of University of Electronic Science and Technology of China
关键词
阵列通道校正
相关
数字干涉仪
DSP实现
array channel calibration
correlation
digital interferometer
DSP implementation
