Design and implementation of an OS-CFAR processor based on a new rank order filtering algorithm

Zulfiqar Ali*, Ali Arshad, Umair Razzaq, Sawaira Sana, Abdul Haseeb Ahmed, Abdullah M. Harris

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    6 Citations (Scopus)


    A novel rank order statistic calculation algorithm for OS CFAR is presented. OS CFAR gives improved performance in a multitarget environment as compared to CA CFAR. However, the computational requirements of sorting data arrays complicate its implementation. We present an algorithm to overcome this challenge by employing a rank order statistic finding algorithm coupled with the exploitation of parallelism offered by FPGAs. In this technique previously computed results are used to successively divide the data array in order to find the new rank order value. The design is tested on MTI processed data from a TA-10K air traffic control radar and is part of a single chip FPGA based radar signal processor. It is implemented on a Virtex-4SX35 FPGA using the Xilinx XtremeDSP kit.

    Original languageEnglish
    Title of host publication2010 International Symposium on System-on-Chip Proceedings, SoC 2010
    Number of pages5
    Publication statusPublished - 21 Dec 2010
    MoE publication typeA4 Article in a conference publication
    EventInternational Symposium on System-on-Chip - Tampere, Finland
    Duration: 29 Sep 201030 Sep 2010
    Conference number: 12


    ConferenceInternational Symposium on System-on-Chip
    Abbreviated titleSoC

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