An Omega-K Algorithm for Highly Squinted Missile-Borne SAR With Constant Acceleration

作者：Tang, Shiyang^*; Zhang, Linrang; Guo, Ping; Zhao, Yonghong

来源：IEEE Geoscience and Remote Sensing Letters, 2014, 11(9): 1569-1573.

DOI：10.1109/LGRS.2014.2301718

• Acceleration
• highly squinted
• missile-borne
• omega-K algorithm
• reference function multiplication (RFM)
• synthetic aperture radar (SAR)

This letter proposes an omega-K algorithm for missile-borne synthetic aperture radar (SAR) diving with constant acceleration. The essence of the novel method is to derive a reference function multiplication from the equivalent range history. The true range history is divided into two parts: range independent and range dependent. After compensating the range-independent part with considering all the terms, we can regard the range-dependent part as an equivalent range history with a form similar to that of conventional SAR. Then, an analytical 2-D spectrum can be used for the omega-K algorithm. The proposed algorithm can handle general missile configurations with wide swaths and high squint angles. Simulation results are presented to validate the proposed method.

• 出版日期2014-9
• 单位西安电子科技大学