Study on the Influence of Space–Time Adaptive Processor on Single Point Position and Real-Time Kinematic for GNSS Antenna Array Anti-jamming Receiver

IF 1.4 4区管理学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Radar Sonar and Navigation Pub Date : 2025-05-21 DOI:10.1049/rsn2.70035

Yaoding Wang, Xiaozhou Ye, Si Chen, Zhenxin Liu

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引用次数: 0

Abstract

Space-time adaptive processor (STAP) has been widely used in the GNSS antenna array anti-jamming receiver. The cost of STAP algorithms, including the minimum variance distortion-less response (MVDR) algorithm and power inversion (PI) algorithm, is introducing measurement errors. However, there is no systematic answer to the principle of error introduction, the magnitude of error and its influence on single point position (SPP) and real-time kinematic (RTK). We have conducted a systematic study on the above-mentioned issues. Firstly, the principle of error introduction was theoretically studied. Then, a large number of simulations were conducted to evaluate the magnitude of the error. Finally, simulated errors are introduced into the B1I and B3I real measurements to implement SPP and RTK to evaluate the influence of the STAP algorithms on SPP and RTK. Results show that for SPP, the influence of STAP algorithms on the B1I + B3I dual-frequency ionosphere-free combination SPP is larger than that on the B1I single-frequency SPP; for RTK, the influence of STAP algorithms on the B1I + B3I dual-frequency uncombined RTK is smaller than that on the B1I single-frequency RTK. In addition, the influences of the MVDR algorithm on SPP and RTK are smaller than those of the PI algorithm.

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时空自适应处理器对GNSS天线阵抗干扰接收机单点位置和实时运动学影响的研究

空时自适应处理器（STAP）在GNSS天线阵抗干扰接收机中得到了广泛应用。包括最小方差无失真响应（MVDR）算法和功率反演（PI）算法在内的STAP算法的代价是引入测量误差。然而，对于误差引入原理、误差大小及其对单点位置（SPP）和实时运动学（RTK）的影响，目前还没有系统的解答。我们对上述问题进行了系统研究。首先，对误差引入原理进行了理论研究。然后，进行了大量的仿真来评估误差的大小。最后，将模拟误差引入到B1I和B3I实际测量中，以实现SPP和RTK，以评估STAP算法对SPP和RTK的影响。结果表明：对于SPP， STAP算法对B1I + B3I双频无电离层组合SPP的影响大于对B1I单频SPP的影响；对于RTK， STAP算法对B1I + B3I双频未组合RTK的影响小于对B1I单频RTK的影响。此外，MVDR算法对SPP和RTK的影响小于PI算法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Iet Radar Sonar and Navigation 工程技术-电信学

CiteScore

4.10

自引率

11.80%

发文量

137

审稿时长

3.4 months

期刊介绍： IET Radar, Sonar & Navigation covers the theory and practice of systems and signals for radar, sonar, radiolocation, navigation, and surveillance purposes, in aerospace and terrestrial applications. Examples include advances in waveform design, clutter and detection, electronic warfare, adaptive array and superresolution methods, tracking algorithms, synthetic aperture, and target recognition techniques.