Multispectral Fusion

Real-time sea state information is crucial for marine operations. Wave Buoy Analogy (WBA) uses ship motion responses to estimate the wave spectrum, providing a cost-effective, real-time method. However, this method is susceptible to the non-uniformly distributed Response Amplitude Operators (RAOs), leading to performance degradation in specific sea states. This study introduces the Restricted Isometry Property (RIP) to evaluate WBA performance. An RAO-driven assessment criterion is proposed to pre-determine the reliability of estimates. Based on this, a multispectral fusion algorithm is developed. This algorithm can effectively fuse multiple estimates from ships with different geometries and headings to generate a comprehensive, robust, and accurate fused result. Numerical experiments demonstrate the algorithm's effectiveness.

Nov 2, 2024