An advanced approach for port detection based on scanning radar

摘要

In this paper, we present an advanced approach fo r port detection based on scanning radar. Linear Frequency Modulation Continuous Wave (LFMCW) radar is chosen for port detection because of the characteristic of quasi-optical, the ability of almost all-weather employment and short-range high resolution. But angular resolution of LFMCW radar is limited by the antenna aperture size and wavelength. In order to obtain better angular resolution, scanning antenna and deconvolution is first adopted in LFMCW radar. The echo signal model of scanning antenna and principle of deconvolution are also analyzed in this paper. Furthermore, time-frequency distribution (TFD) is adopted in echo signal to obtain more movement information of ships. At the end of this paper, concrete steps of port detection are described by the use of deconvolution methods and time-frequency analysis. The simulation results are presented to demonstrate the performance of the advanced approach.