GPS最优压制式干扰信号研究
发布时间：2019-06-01 21:40
【摘要】：针对GPS最优干扰信号评估方法欠缺的问题,提出了利用接收机误码率判断最优干扰信号的方法;通过对卫星导航接收机工作原理的研究,建立了卫星导航接收机模型;通过接收机不同模块对导航信号处理过程的研究,建立了基于中频信号的误码率模型;利用仿真工具模拟不同干扰信号,研究不同干扰环境下接收机的误码率;通过改变干扰信号功率得到误码率与干信比的关系曲线,比较不同干扰信号同干信比下接收机的误码率,得到最优干扰信号;通过实验验证,在接收机干信比允许范围内,相同干扰信号功率下,伪码相关干扰信号干扰效果最优,为卫星导航信号干扰设备的研发及设计提供了依据。
[Abstract]:In order to solve the problem of lack of GPS optimal interference signal evaluation method, a method of judging the optimal interference signal by using the bit error rate of the receiver is proposed, and the model of the satellite navigation receiver is established by studying the working principle of the satellite navigation receiver. Through the research of navigation signal processing process in different modules of the receiver, the bit error rate model based on intermediate frequency signal is established, and the bit error rate (BER) of the receiver in different interference environment is studied by using simulation tools to simulate different interference signals. By changing the power of the interference signal, the relationship curve between the bit error rate and the dry signal ratio is obtained, and the optimal interference signal is obtained by comparing the bit error rate of the receiver under the same interference signal ratio. The experimental results show that the pseudo-code related interference signal has the best interference effect under the same interference signal power within the allowable range of receiver dry-to-signal ratio, which provides the basis for the research and design of satellite navigation signal interference equipment.
【作者单位】： 北京信息科技大学高动态导航技术北京市重点实验室;
【基金】：国家自然科学基金(61261160497) 十二五预先研究项目(9071223301)
【分类号】：P228.4
，
本文编号：2490604
[Abstract]:In order to solve the problem of lack of GPS optimal interference signal evaluation method, a method of judging the optimal interference signal by using the bit error rate of the receiver is proposed, and the model of the satellite navigation receiver is established by studying the working principle of the satellite navigation receiver. Through the research of navigation signal processing process in different modules of the receiver, the bit error rate model based on intermediate frequency signal is established, and the bit error rate (BER) of the receiver in different interference environment is studied by using simulation tools to simulate different interference signals. By changing the power of the interference signal, the relationship curve between the bit error rate and the dry signal ratio is obtained, and the optimal interference signal is obtained by comparing the bit error rate of the receiver under the same interference signal ratio. The experimental results show that the pseudo-code related interference signal has the best interference effect under the same interference signal power within the allowable range of receiver dry-to-signal ratio, which provides the basis for the research and design of satellite navigation signal interference equipment.
【作者单位】： 北京信息科技大学高动态导航技术北京市重点实验室;
【基金】：国家自然科学基金(61261160497) 十二五预先研究项目(9071223301)
【分类号】：P228.4
，
本文编号：2490604
本文链接：https://www.wllwen.com/kejilunwen/dizhicehuilunwen/2490604.html
