航海雷达测波系统中海杂波数据的校正

为了对航海雷达图像进行海杂波数据的精确校正,结合实测海浪数据,提出了一种海杂波数据校正方法.首先,针对雷达成像过程中的几何畸变,结合数据采集系统的实际工作参数,通过方位向和距离向数据的快速分离进行几何校正;然后,针对海杂波数据沿扫描线方向存在的辐射量畸变,根据实际海浪分析的信号要求,利用沿扫描线上的非线性原理进行相对辐射校正.结果表明,无论是数据处理速度还是校正后的影像质量,均达到了海浪分析工程的实用要求.

THE DATA CORRECTION OF SEA CLUTTER IN THE WAVE MONITORING SYSTEM OF NAUTICAL RADAR

For the purpose of accomplishing wave information inversion,precise correction of sea clutter data is necessary.In this paper,a correction algorithm is proposed for processing sea clutter data.First,for tackling geometric aberrance of radar imaging,a fast geometric correction method based on the separation of azimuth and range is proposed combined with the real working parameters.Then,for coping with radiation quantity aberrance of sea clutter data along with scanning beam,a nonlinear relative radiometric c...