The invention discloses a direct sequence / frequency hopping DS/FH spread spectrum signal parameter estimation method based on cyclic spectrum theory and splicing technology, mainly solving the problem that the existing DS/FH spread spectrum signal parameter estimation performance is low. The steps are: firstly, using the theory of cyclic spectrum of DS/FH spread spectrum signal, carrier frequency and code rate of pre estimation; and then use the pre estimated carrier frequency and code rate of DS/FH spread spectrum signal segmentation; segmentation of signals extracted by splicing; and finally using the cyclic spectrum theory of signal splicing after the final estimation of the carrier frequency and symbol rate. The invention has the advantages of strong anti-interference ability, high accuracy of parameter estimation, and can effectively reduce the estimation error, and can be used for processing communication signals.
【技术实现步骤摘要】
【技术保护点】
１．一种基于循环谱理论的直接序列／频率跳变ＤＳ／ＦＨ扩频信号参数估计方法，包括如下步骤：１）对于接收到的ＤＳ／ＦＨ扩频信号Ｘ（ｔ），利用循环谱理论进行载频和码速率的预估计；２）利用预估计出的载频和码速率对ＤＳ／ＦＨ扩频信号进行分割提取，将ＤＳ／ＦＨ扩频信号分割成Ｎ路不同频率的信号Ｘ′（ｔ）；３）通过拼接方法把Ｎ路不同频率的信号Ｘ′（ｔ）变频为频率均为ｆ０的Ｎ路信号Ｙ′（ｔ）；４）将Ｎ路频率相同的信号Ｙ′（ｔ）按照接收到的顺序在进行叠加，得到拼接后的信号Ｚ（ｔ）；５）对拼接后的信号Ｚ（ｔ），利用循环谱理论进行载频和码速率的最终估计。
【技术特征摘要】
【专利技术属性】
技术研发人员：金艳，赵玉柱，姬红兵，
申请(专利权)人：西安电子科技大学，
类型：发明
国别省市：87
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