信道不匹配条件下GNSS信号带宽对天线阵列抗干扰性能的影响

2020 5th International Conference on Computer and Communication Systems (ICCCS) Pub Date : 2020-05-01 DOI:10.1109/ICCCS49078.2020.9118566

Zukun Lu, Feiqiang Chen, Yuchen Xie, Zhe Liu

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引用次数: 1

摘要

天线阵列导航接收机的抗干扰性能受到信道失配的限制。在相同射频信道特性下，分析了不同全球导航卫星系统(GNSS)信号带宽对抗干扰性能的影响。提高信号带宽是提高卫星导航定位精度的有效途径。在信道失配情况下的仿真和实验表明，增大信号带宽会导致抗干扰性能下降，严重缺乏理论支持。本文推导了空时自适应处理器(STAP)的权值和传递函数，并分析了信号带宽对抗干扰性能的影响。理论分析表明，在信道不匹配的情况下，增大信号带宽会导致抗干扰性能下降。

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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Impact on Anti-jamming Performance of GNSS Signal Bandwidth under Channel Mismatch Used Antenna Arrays

The performance of anti-jamming is limited by channel mismatch in antenna arrays navigation receivers. Under the same radio frequency (RF) channel characteristic, this paper has analyzed the influence on anti-jamming performance in different global navigation satellite system (GNSS) signal bandwidth. Increasing the bandwidth of signal is an effective way to improve the positioning accuracy in satellite navigation. According to the simulation and experiment in the case of channel mismatch, increasing the signal bandwidth would lead to anti-jamming performance degradation, which is seriously lack of theoretical support. In this paper, we derive the weight value of space-time adaptive processor (STAP) and the transfer function, and the influence of signal bandwidth to anti-jamming performance is analyzed. The theoretical analysis shows that increasing signal bandwidth would lead to anti-jamming performance degradation under the condition of channel mismatch.

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2020 5th International Conference on Computer and Communication Systems (ICCCS)

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