基于循环平稳特性的BPSK信号角跟踪方法

发布时间：2018-06-23 14:54

本文选题：低信噪比 + 相关噪声　；参考：《科学技术与工程》2016年27期

【摘要】：针对测控数传一体化体制中低信噪比条件下的BPSK信号角跟踪问题,提出了基于BPSK信号循环平稳特性的角跟踪方法。通过对谱相关理论的深入分析,引入旋转系数这一概念,通过计算量相对较小的方法对和差通道信号进行处理,进而估计角误差值,完成角跟踪。仿真结果表明,理想高斯白噪声背景下,和差通道相关噪声为噪声总功率0.1倍时,该方法的角误差值估计门限可低至2 d B。
[Abstract]:Aiming at the problem of angle tracking of BPSK signal under the condition of low signal-to-noise ratio (SNR) of integrated measurement and control system, an angle tracking method based on the stationary characteristic of BPSK signal cycle is proposed. Based on the deep analysis of spectral correlation theory, the concept of rotation coefficient is introduced, and the sum channel signal is processed by a relatively small calculation method, and then the angle error is estimated and the angle tracking is completed. The simulation results show that the angle error estimation threshold of this method can be as low as 2 dB when the correlation noise of sum channel is 0.1 times the total power of noise under the background of ideal Gao Si white noise.
【作者单位】：装备学院研究生管理大队;装备学院光电装备系;
【分类号】：V556

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