基于正交循环码的M-ary扩频解扩新算法及FPGA实现

Journal of Telemetry,Tracking and Command(2011)

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Abstract
针对基于正交循环码M-ary扩频解扩算法消耗硬件资源较多的问题,提出一种以折叠匹配滤波器为基础的算法及FPGA实现方案。选择合适的计算时钟,算法使用6个加法器和4个乘法器即可实现非相干解扩,比传统相关解扩算法节省资源,两者消耗资源之比随进制数M的增加而降低。实验结果证明了算法的正确性和有效性。
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Key words
De-spreading,M-ary orthogonal spread spectrum,Folded DMF,FPGA
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