摘要
单通道比幅单脉冲测向定位系统应用广泛,其测向定位精度受和差通道相位差影响较大。传统的相位校正方法步骤较为繁琐、费时,对此提出一种星上自动校相单脉冲测向定位方法,采用非线性滤波方法对辐射源位置与和差通道相位差进行同时估计,实现了辐射源的快速准确定位。一个典型场景的仿真结果验证了方法的有效性,并给出了不同和差通道相位差情况下该方法对定位精度的改善程度。
The direction finding and localization systems using single-channel monopluse amplitude compari- son are widely used. The accuracy of direction finding and localization is greatly influenced by the phase dif- ference between the sum channel and the difference channel. Traditional phase correction methods are tedious and time-consuming. A satellite-borne direction finding and localization approach with automatic phase cor- rection is proposed. The emitter location and the phase difference are simultaneously estimated using a nonlin- ear filtering method, and fast and accurate localization is realized. The simulation results for a typical application verify the effectiveness of the proposed approach. In addition, the extend of accuracy improvement for differ- ent phase differences between the sum channel and the difference channel are provided.
出处
《通信对抗》
2016年第3期6-9,共4页
Communication Countermeasures
关键词
单脉冲
测向
定位
自动校相
monopluse
direction finding
localization
automatic phase correction
