Adaptive interference suppression method based on Kalman filter in GPS/INS receiver

被引：0
|
作者：
机构：
[1] School of Information and Control Engineering, Xi'an University of Architecture and Technology
[2] National Key Laboratory of Radar Signal Processing, Xidian University
来源：
Wang, C. (wangchun01@126.com) | 1600年 / Chinese Society of Astronautics卷 / 34期
关键词：
Generalized sidelobe canceller; GPS/INS receiver; Householder transformation; Interference suppression; Kalman filter;
D O I：
10.7527/S1000-6893.2013.0070
中图分类号：
学科分类号：
摘要：
Considering the real-time requirement of interference suppression in INS-assisted GPS (GPS/INS) receiver, a novel adaptive interference suppression approach for the GPS/INS receiver is presented based on the Kalman filter.An adaptive generalized sidelobe canceller (GSC) always employs the least-mean-square (LMS) algorithm for weight adaptation due to the lower complexity, but its convergence rate is lower and even make the receiver interrupt in severe cases. First, Householder transformation is employed for the design of the blocking matrix of the GSC, which can block desired signal received by an arbitrary planar array type. Then, update the adaptive weight on the low path by the Kalman filter, which exhibits great advantage for the output signal-to-interference-noise ratio (SINR). Theoretical analysis and simulation results demonstrate that the proposed method can effectively suppress the impact of interference on the receiver, and improve real-time characteristics of interference mitigation.
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页码：1414 / 1423
页数：9
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