本文選題：低信噪比 + 相關(guān)噪聲�。� 參考：《科學(xué)技術(shù)與工程》2016年27期

【摘要】：針對測控數(shù)傳一體化體制中低信噪比條件下的BPSK信號角跟蹤問題,提出了基于BPSK信號循環(huán)平穩(wěn)特性的角跟蹤方法。通過對譜相關(guān)理論的深入分析,引入旋轉(zhuǎn)系數(shù)這一概念,通過計算量相對較小的方法對和差通道信號進(jìn)行處理,進(jìn)而估計角誤差值,完成角跟蹤。仿真結(jié)果表明,理想高斯白噪聲背景下,和差通道相關(guān)噪聲為噪聲總功率0.1倍時,該方法的角誤差值估計門限可低至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.
【作者單位】： 裝備學(xué)院研究生管理大隊;裝備學(xué)院光電裝備系;
【分類號】：V556

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本文編號：2057498