摘要 : Sparse-array Synthetic Impulse and Aperture Radar(SIAR) can isotropically radiate by employing multiple frequencies (synthetic pulse) and multiple antennas(synthetic antenna). According to Ambiguity Function(AF), its range resolut... 展开 Sparse-array Synthetic Impulse and Aperture Radar(SIAR) can isotropically radiate by employing multiple frequencies (synthetic pulse) and multiple antennas(synthetic antenna). According to Ambiguity Function(AF), its range resolution depends only on bandwidth of trans- Mitted signals, however, the distance grating lobes emerge when increasing the time-bandwidth Product of transmitted signals. The performance of pulse compression is analyzed with the Transmitted signals modulated by phase-coded sequences. It is seen that greater ratio of pulse Compression and suppression of range sidelobe in SIAR can be obtained be obtained, and its effective range And range resolution is increased as well. 收起