Research Of Capture And Synchronization For Satellite Burst Communication Signal

This research project is based on the actual needs of the business,focusing on the satellite telephone communication signal burst detection and synchronization technology to analyze and study,blind signal processing parameter estimation algorithm prepare for the subsequent development of the blind demodulator for satellite communications of the sensitive areas.Restore Important information.Find the key objectives.To meet the needs of research for the satellite burst communication signal blind received in the industry.Research the following aspects:Digital signal detection,signal detection method by comparison,is more suitable for determining the burst signal using real-time detection of double sliding window energy detection judgment method,this method received signal blind reconnaissance under no circumstances prior information has a good detection performance and its response speed is relatively faster.Parameter estimation and wavelet analysis methods based on signal model by wavelet transform and related expressions derived wavelet transform coefficients and digital signal frequency,phase,and symbol rate and other parameters of the relationship.In the study of the synchronous system,received burst communication signals for blind particularity,before focusing on the secondary structure of the NDA estimation methods to analyze and research,developed the signal timing synchronization,carrier synchronization and phase synchronization parameter estimation algorithm.Signal estimation algorithm worked out for the subsequent digital signal blind demodulator research laid the foundation for the current research results have been applied to the development of the above-mentioned correlation detection device,to achieve the capture symbol information recovery and restore,and then to the access to sensitive Objective information,the validity of methods and algorithms.