Azimuth Resolution Improvement and Target Parameters Inversion for Distributed Shipborne High Frequency Hybrid Sky-Surface Wave Radar

In this paper, the aperture synthesis processing techniques for distributed shipborne high frequency hybrid sky-surface wave radar (HFHSSWR) are proposed to improve azimuth resolution and obtain velocity vector estimation of moving target. First, system geometry signal model target HFHSSWR formulated, then improvement principle is derived. Second, based on developed model, we propose an algorithm, which can synthetic bandwidth improved using sub-band combination. Finally, a parameters inversion method introduced estimate azimuth, by solving equations regarding echo numerically. The simulations performed verify algorithms. results indicate that effectively radar, high-precision azimuth.