Abstract:

Maritime ship targets detection with high frequency (HF) surface wave radar (HFSWR) of single frequency can be affected by the first order sea clutter and HF resonant zone target echo intensity fluctuation and cause the target undetected cases. Based on the measured HFSWR data, the characteristics of dual-frequency HFSWR on ship detection and the influence of sea clutter of target detection are investigated especially. It is pointed out that dual-frequency HFSWR can overcome the shortcoming of target undetected in some cases for single frequency HFSWR, so it can improve the vessel targets detection rate. Then the detection results of dual-frequency HFSWR are analyzed and classified, and a target association and fusion method is proposed for dual-frequency HFSWR. After that, selection principles of the major parameters and their effects are discussed in the process of targets association which including range bin, velocity bin and direction bin. Finally the detecting accuracy of fusion points is evaluated.