摘要
在分析机载合成孔径雷达运动目标成像特点的基础上，探讨了一种动目标成像的前置滤波方法，指出其存在的问题，提出了在前置滤波后进行参数估计的后处理形式，该方法基于时间－频率联合分析法，能得到运动目标的精细成像结果，计算机模拟验证了方法的有效性。
the peper consiuers the effects of slowly moving targets as they appear in the output of a synthetic aporture imaging radar.An approach using a prefilter prior to azimuth compression in SAR and its some disadvantagea are descritbed. Then a new parameter estimation method based on joint time-frequency analysis is discussed and it can produce a high resolution image,The computer simulation results illustrate its availability.
出处
《现代雷达》
CSCD
1994年第5期12-17,共6页
Modern Radar
关键词
合成孔径雷达
运动目标成像
时间-频率分布.
synthetic aperture radar, imaging of moving object, time-frequency distribution.
