对合成孔径侧视雷达方位向分辨力进行理论分析时,通常假设雷达在作匀速直线飞行,但是实际情况却不是这样。横侧向和垂直向平移运动造成的均匀速度误差,天线波束指向发生方位向和俯仰向的变化,都会引起多普勒频谱的偏移。从同步检波器的输出频谱来看,多普勒频谱的中心频率将偏离偏置频率,严重时根本就不能成像。为了提高成像质量,在合成孔径侧视雷达中必须采用杂波锁定系统来校正这类误差。这个系统,从 When analyzing the azimuth resolution of a synthetic aperture side-looking radar, it is usually assumed that the radar is flying at a uniform straight-line speed, but this is not the case. Lateral and vertical translational motion caused by the uniform velocity error, the antenna beam direction occurs when the azimuth and pitch changes, will cause the Doppler shift spectrum. From the synchronous detector’s output spectrum, the center frequency of the Doppler spectrum will deviate from the offset frequency, in serious cases simply can not be imaged. In order to improve the imaging quality, clutter locking system must be adopted in synthetic aperture side-view radar to correct such error. This system, from