A novel algorithm for larger size target imaging in sparse aperture is presented in this paper for Inverse Synthetic Aperture Radar (ISAR). In the proposed method. azimuth compressing is done in the range frequency domain to avoid Migration Through Range Cell (MTRC). and Compress Sensing (CS) is introduced to take place of FFT to reduce the Peak Side Lobe Ratio (PSLR). https://www.roneverhart.com/MagnaFlow-OEM-Grade-Federal-EPA-Compliant-Direct-Fit-Catalytic-Converter-51821/