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Design and Implementation of a Real Time FPGA Based CFAR Processor for Radar Target Detection Using ML403 FPGA Development Board
| Content Provider | Semantic Scholar |
|---|---|
| Author | Magaz, Boualem Mabed, Toufik Abbadi, Ali |
| Copyright Year | 2009 |
| Abstract | The improvement in the development of theoretical aspect of CFAR radar detection is advanced and very p romising, yet the practical hardware aspect is still beyond the required high computational signal processing operations. In this paper, a configurable Field Programmable Gate Array (FPGA) based hardware architecture for Ordered Statistics (OS)-CFAR processor for radar target detection is presented. The proposed architecture is based on an efficient procedure for FPGA implementation of the OS-CFAR detector, based on the (N-K+1)-th maximum determination. By showing that the determination of the K-th order out of N reference cells is equivalent to selecting the (N + 1 - K)-th maximum, the detector that uses N reference cells can be implemented using only (N-1) comparators and (N-1) inverters. The proposed structure, adapted to the ASR-9 radar parameters, is designed, implemented, and evaluated on the ML403 FPGA board. The proposed architecture shows that it can be implemented with the advantages of a parallel structure and allows an important optimization of the required FPGA hardware resources utilization. The system has the advantages of being simple, fast, and flexible with low development cost. For a reference window of 16 range cells, the experimental results carried out using Xilinx development kit showed that the proposed architecture works properly with a processing speed of 50MHz (up to 122 MHz using external clock). The execution time to perform the overall OS-CFAR detection algorithm is 0.819ms for a data set of 1000 range cells. The FPGA implementation results are presented and discussed. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.setit.rnu.tn/last_edition/setit2009/Telecom%20and%20Network/217.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
