A real-time hybrid correlator for synthetic aperture radar signal processing

Koo, V. C. and Chan, Y. K. and Lim, T. S. (2007) A real-time hybrid correlator for synthetic aperture radar signal processing. In: Progress in Electromagnetics Research Symposium (PIERS 2007), 26-30 MAR 2007, Beijing, PEOPLES R CHINA.

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Abstract

Synthetic Aperture Radar (SAR) image formation is based on a coherent processing approach to build a long azimuth synthetic aperture. Due to the curvature and the range variance of the azimuth modulation, SAR image formation is inherently a two dimensional process. Two key elements in designing a digital SAR processor are the processing speed and memory requirements. For real-time SAR processing, the high computational requirements cannot be provided by a sequential processor system. In this paper, a new real-time SAR processor based on sub-aperture processing approach is presented. This scheme, called the Real-Time Hybrid Correlator (RTHC), achieves range correlation in frequency domain, followed by azimuth correlation in time domain. The proposed RTHC is a computationally efficient scheme without the need of corner-turn memory. Due to its distributed architecture, dedicated parallel processors can be employed for real-time processing.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
Q Science > QA Mathematics > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 12 Oct 2011 08:16
Last Modified: 12 Oct 2011 08:16
URI: http://shdl.mmu.edu.my/id/eprint/3231

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