NICOP - HF radar signal enhancement and analysis for improved detection and tracking of surface vessels
Abstract
In RDMs obtained from the compact HF radar, error sources are indistinguishable due to the fact that CFAR based ship detectors find local peak points exceeding a certain threshold and direction of arrival does in contain information of which source the detection originated from. Therefore, it is necessary to expand our approach to multiple RDMs at different times to accurately find the ships’ locations based on modeling of target behavior. As an approach to reduce error caused by ambiguity and clutter sources, a method that applied a sequence of Interacting Multiple Model (IMM) – Joint Probabilistic Data Association (JPDA) – Unscented Kalman Filter (UKF) to multiple RDMs of HF radar was proposed by S. Maresca. However, although the method has greatly reduced error, it is still incapable of merging of multiple detections originating from a single ship, eliminating consistent clutter such as Bragg scattering, modeling of ship trajectory for very long sampling rate (one scan per 4 minutes), and achieving effective track initialization and termination.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N629091512064
Entities
People
- Hanseok Ko
Organizations
- Korea University
- Office of Naval Research
- United States Navy