Analysis of MIMO SAR Imaging Algorithm Based on Complete Complementary Sequence and Phase Compensation

10.3966/199115992017102805028

Shu-Feng Li；Hong-Da Wu；Li-Biao Jin

complete complementary sequence ； MIMO ； SAR

電腦學刊

28卷5期（2017 / 10 / 01）

327 - 337

英文

The CC-S (Complete Complementary Sequence) is composed of several complementary orthogonal sequences, which is satisfied with the requirement of the orthogonal Multiple-Input Multiple-Output (MIMO) radar signals. Aimed at the difficulty of high sidelobe in Synthetic Aperture Radar (SAR) imaging processing, an approach of depressing sidelobe output based on CC-S in MIMO SAR system was proposed. The model for orthogonal MIMO radar transmitting signals and the corresponding match filter were established in this paper. Equivalent phase compensation theory is used to carry out compensation for signal phase shift. The MIMO SAR imaging algorithm with CC-S was deduced. The simulation results demonstrate that the imaging performance of CC-S employed in orthogonal MIMO radar system is much better than that with traditional Linear Frequency Modulation (Chirp) signal and Barker signal, by which the feasibility and validity of CC-S applied in orthogonal MIMO SAR system are justified.