PERFORMANCE ANALYSIS OF PULSE COMPRESSION USING PHASE-CODED SIGNALS FOR SPARSE-ARRAY SYNTHETIC IMPULSE AND APERTURE RADAR

Sparse-array Synthetic Impulse and Aperture Radar (SIAR) can isotropically radiate by employing multiple frequencies (synthetic pulse) and multiple antennas (synthetic antenna). The range resolution only depends on bandwidth of transmitting signals. The distance grating lobes emerge in the case of increasing time-bandwidth product of transmitting signals. The performance of pulse compression is analyzed with the transmitting signals modulated by phase-coded sequences. The great ratio of pulse compression and range sidelobe suppression in SIAR are obtained, and its effective range and range resolution are raised.