摘要
从模糊函数概念出发讨论了稀布阵综合脉冲孔径雷达（简称ＳＩＡＲ）增大发射信号的时宽带宽积时存在的距离栅瓣效应．当采用相位编码调制各个阵元的发射信号时，不仅可以满足ＳＩＡＲ对各向同性照射的要求，而且可以克服这种效应．这表明大时宽带宽积信号同样可以用于ＳＩＡＲ这种新体制雷达，从而有利于提高其作用距离和分辨能力．
The distance grating lobes existing in sparse array Synthetic Impulse and Aperture Radar (SIAR) in the case of increasing time bandwidth product of transmitting signals are discussed. When the transmitting signals are modulated by phase coded waveforms, SIAR not only can give off isotropic radiations, but also can overcome the grating lobes. This shows that signals with a big time bandwidth product can be applied to this new type radar—SIAR, and its effective range and range resolution are increased.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第3期335-341,共7页
Journal of Xidian University
基金
国防科技预研基金
关键词
稀布阵
脉冲孔径雷达
相位编码
雷达
sparse array synthetic impulse and aperture radar phase coded ambiguity function
