摘要
为克服多通道系统硬件量大、造价高及通道间幅相不一致时性能恶化等不足,单通道测向系统应运而生。对单通道阵列测向系统的原理进行了较为详细的介绍,定量分析了接收机的线性相位特性对测向的影响,定性分析了非线性相位特性对测向的影响,并给出了解决的办法。模拟实验的结果表明了理论分析的正确性。
Direction finding based on single receiving channel is proposed to overcome the shortcomings of multiple channel system, such as too complex and highly cost hardware, worse performance due to the inconsistency among multiple channels. This paper introduces the basic principle of direction finding with single channel antenna array, analyzes the effect of the linear phase character of receiver on direction finding quantitatively, and also analyzes the effect of the non-linear phase character on direction finding qualitatively. The results of experiments show the correctness of analysis.
出处
《现代雷达》
CSCD
北大核心
2007年第7期75-79,共5页
Modern Radar
关键词
单通道
测向
MUSIC算法
相位特性
single channel
direction finding
MUSIC arithmetic
phase characteristics
