伪码体制复合引信信号识别及参数提取技术研究的中期报告.docx

伪码体制复合引信信号识别及参数提取技术研究的中期报告
【摘要】
本文对伪码体制复合引信信号的识别及参数提取技术进行了研究。首先，以广义相关器为基础，建立了针对伪码体制复合引信信号的识别算法。该算法利用广义相关性分析信号密度分布规律，实现了对复合信号的分离和识别。接着，针对伪码体制复合引信信号的参数提取问题，提出了一种基于时间延迟估计的参数提取算法。该算法通过对复合信号的时间延迟进行估计，实现了对信号的载频、码片、模式等参数的提取。最后，针对算法的性能进行了仿真实验，结果表明，所提出的算法能够有效地实现伪码体制复合引信信号的识别及参数提取，并具有较好的鲁棒性和可靠性。
【关键词】引信信号；伪码体制；复合信号；广义相关器；时间延迟估计；参数提取
【Abstract】
Thispaperstudiestherecognitionandparameterextractiontechnologyofcompositeguidancesignalsinpseudocodesystem.Firstly,basedonthegeneralizedcorrelator,anidentificationalgorithmforcompositeguidancesignalsinpseudocodesystemisestablished.Thealgorithmusesthegeneralizedcorrelationtoanalyzethedistributionofsignaldensityandrealizestheseparationandrecognitionofcompositesignals.Secondly,aparameterextractionalgorithmbasedontimedelayestimationisproposedfortheproblemofparameterextractionofcompositeguidancesignalsinpseudocodesystem.Thealgorithmextractstheparametersofsignalfrequency,codechip,mode,etc.byestimatingthetimedelayofcompositesignals.Finally,theperformanceofthealgorithmistestedbysimulationexperiments.Theresultsshowthattheproposedalgorithmcaneffectivelyrealizetherecognitionandparameterextractionofcompositeguidancesignalsinpseudocodesystem,andhasgoodrobustnessandreliability.
【Keywords】guidancesignal;pseudocodesystem;compositesignal;generalizedcorrelator;timedelayestimation;parameterextraction