<FONT face=Verdana>A novel approach is presented to achieve high range and azimuth resolution wide swath with high Signal-Noise-Ratio based on the plane-array Multiple Input Multiple Output Synthetic Aperture Radar (MIMO-SAR) system by the combination of intrapulse scanning and two-dimensional spatial filter and bandwidth synthesis. This paper presents the plane-array MIMO-SAR model with the intrapulse scanning technique; We analyze the improvement of performance of the system by introducing intrapulse scanning in the MIMO-SAR model。With respect to the range ambiguities led to intrapulse scanning and Doppler ambiguities caused by low pulse repetition frequency

two-dimensional spatial filter is used to tackle range and Doppler ambiguities; at the same time bandwidth synthesis based on more the degrees of the freedom provided by the MIMO-SAR system is used to realize high range resolution. The plane-array MIMO-SAR system can be used to realize high SNR and two dimensional high resolutions

and overcomes the contradiction between the high resolution and wide swath

and breaks through the conflict between high SNR and wide swath.