A Study Of Realization Of Data Processing And Fusion In Passive Radar

Conventional radar has significant defects such as stealth effect missing, weak anti-low-altitude penetration and poor anti-stealth capability, thus facing a severe threat in modern warfare. On the contrary, passive radar system does not carry radiation source and has separate sending and receiving station, so this new radar system has good concealment, anti-stealth and some low-altitude detection capability, and networking detection can significantly increase the radar detection range and accuracy and has become a hot topic in the field of radar.Passive radar also has defects such as high false alarm rate, serious multipath interference and huge data volume, so in-depth study of passive radar has profound significance. Processing and fusion of passive radar data herein has been systematically studied, the main works are:1. Single system passive radar targeting and tracking algorithm are studied. We present a targeting algorithm based on TOA and clustering and a tracking algorithm based on a multi-state management. Tracks are divided into different states according to observation-related cases and processed differently. The result of real data processing proves the effects of the algorithm and provides a basis for the network probe.2. The data transmission scheme is systematically studied and designed based on actual need. It uses a new DTU products to achieve a reliable transmission and reception of data. Features of this program include simple equipment, simple development processing, easy to use and low cost. Software development and data format design of the program are introduced in detail. Finally, speed and reliability of the transmission are verified by experiments.3. Passive radar track data fusion algorithm is studied and a track-oriented data fusion algorithm is described to achieve a two-node radar data networking system integration. By using measured data, track accuracy of the fused conduct is analyzed and the results show that the power of fusion networking radar has improved significantly.