Modified Multi-Mode Target Tracker for High-Frequency Surface Wave Radar

Abstract

Abstract:In high-frequency surface wave radar (HFSWR), part of the radiation signal inevitably propagates upward and illuminates the target through the ionosphere due to the poor controllability of the antenna's vertical pattern. As a result, a target may have several echoes from different propagation modes, which affect target detection and tracking and is usually unmanageable in existing HFSWR systems. Without the information of the elevation angle, it is difficult to distinguish the propagation mode of measurements during the target detection phase. This paper makes the first attempt to propose a multi-mode target tracker for HFSWR to solve this problem during the target tracking phase. The multipath probability data association (MPDA) tracker is capable of exploiting multipath target signatures of discrete propagation modes and has been widely used. Based on this, we construct a modified multi-mode probability data association tracker for HFSWR to suppress false tracks caused by multiple propagation modes. Numerical simulations demonstrate that this novel tracker can effectively and accurately track the target from the measurements under multiple propagation modes in HFSWR. The processing results of the actual data collected in Weihai, China indicate that this tracker is of great significance for practical applications.

Multi‐mode target tracking in combined sky‐wave and surface‐wave monostatic high frequency radar

“…Among them, the second case is similar to the tracking algorithm without a mode judgment module proposed by Zhao et al . [4].…”

“…To solve this problem, Zhao et al . [4] propose a tracking algorithm for CSSM‐HF radar draws on the multi‐path tracking algorithm of OTHR. This tracking algorithm did not take into account the characteristics of CSSM‐HF radar itself, and only applied the tracking algorithm of OTHR to the CSSM‐HF radar system.…”

“…The multi‐mode tracking algorithm proposed in [4] only applied the MPDA tracking algorithm of OTHR directly to the new radar system, without considering the characteristics of the CSSM‐HF radar. This algorithm established the target motion model in the polar coordinate system and assumed that every target can generate the echoes of all propagation modes.…”

Adaptive Unscented Kalman Filter for Target Tracking with Unknown Time-Varying Noise Covariance

“…The main mission of target tracking is to estimate the dynamic parameters and show the trajectory of a maneuvering target by extracting the useful information from sensor observations [1]. Target tracking has a wide variety of both military and civilian applications in fields such as precision guidance, target recognition, and surveillance [2,3,4,5,6]. To implement target tracking in these research areas, filtering is being used increasingly in more recent tracking systems.…”

A Geometric Barycenter-Based Clutter Suppression Method for Ship Detection in HF Mixed-Mode Surface Wave Radar

“…Utilizing the same propagation model, a target track matching method is presented based on the multipath echoes by Zhang et al [6]. A modified multimode target tracker is proposed to deal with the target tracking problem in mixed propagation mode [7]. The advantages of the mixed propagation mode compared with the conventional HFSWR, are that more target information can be obtained due to additional propagation paths and the detection range can be extended for HFSWR owing to the ionosphere propagation path.…”