Method of DS/SS signals chip-rate blindly estimation

被引：0
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作者：
Northwestern Polytechnical Univ., Xi'an 710072, China [1 ]
不详 [2 ]
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来源：
Xi Tong Cheng Yu Dian Zi Ji Shu/Syst Eng Electron | 2007年 / 6卷 / 852-853+857期
关键词：
Algorithms - Computer simulation - Direct sequence systems - Parameter estimation - Power spectral density - Reliability - Signal encoding - Signal filtering and prediction - Signal to noise ratio - Spectrum analysis;
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摘要：
Aiming at the problem of intercepting the direct sequence spread spectrum communication signal, this paper makes full use of the wave characteristic of base-band signal after it is applied to shaping filter is made, and an algorithm which is based on the average power serial is given. This algorithm firstly calculates the average power serial, and then finishes the detection of PN code rate through the analysis of frequency spectrum and smooth processing. The computer simulation and practical application can justify the effectiveness and reliability of this algorithm in low SNR.
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