Bistatic Location Of Surface Wave Radar

The positioning problem in radar signal processing has always been a hot topic for scientists from all over the world.The application of positioning technology can be seen in all aspects of military activities and life.The application of positioning technology has played a very positive role in the improvement of military strength and the convenience of life.High frequency surface wave radar(HFSWR)has gradually become the focus of domestic and foreign scholars for its over-the-horizon detection characteristics and long monitoring time.Therefore,this topic combines the characteristics of HF surface wave radar to locate the target in the background of bistatic HF surface wave radar.Two kinds of localization algorithms,direct localization and indirect localization,are studied in depth,and the unavoidable matching problem in multi-target localization is studied in detail.Firstly,the basic idea and principle of indirect location algorithm are studied in detail,including traditional angle location algorithm,simple location algorithm,weight location algorithm,Taylor series location algorithm and two new indirect location algorithms,eigenvalue decomposition-based location algorithm and prior information-based location algorithm.The indirect localization algorithm consists of two parts.The first part needs to measure the intermediate parameters first,and the second part combines the intermediate parameters with different localization algorithms to locate.Different indirect location algorithms can be constructed by using different combination of parameter estimation algorithms and location algorithms.Therefore,indirect location algorithms are widely used in various fields of target location.Finally,the performance of each algorithm is compared and analyzed through simulation experiments.Secondly,the direct location algorithm is deeply studied in this paper,including the direct position determination stimation algorithm(DPD algorithm),localization by Space-Time algorithm(LOST algorithm),direct target localization algorithm(DTL algorithm).Because the direct location algorithm can estimate the target position directly after processing the echo signal received by radar,it does not need the transmission of intermediate parameters like the indirect location algorithm,avoids the introduction of noise or interference in the transmission process,and improves the location efficiency and the performance of the location algorithm.The simulation experiments of different algorithms are carried out,and the performance and application conditions of the algorithm are analyzed according to the experimental results.Finally,the matching problem in multi-target localization is studied.The basic principles of multi-target fast localization algorithm and automatic matching localization algorithm are analyzed in detail,and the core ideas of the two algorithms to solve the matching problem are studied in depth.Finally,the performance of the algorithm is compared and analyzed through simulation experiments.