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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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定点FFT在TS201上的高效实现
Keywords: 快速傅里叶变换,SingLeton结构,定点FFT,汇编指令优化
Abstract:
针对美国模拟器件公司(ADI)推出的ADSP-TS201内部的DRAM存储器不适合标准结构快速傅里叶变换(FFT)对随机读写存储器要求的问题,采用SingLeton结构FFT,并给出了采用该结构FFT的程序流程,选择TS201内部适合定点FFT实现的汇编指令,通过合理安排指令并行和软件流水,在TS201上对定点FFT进行了高效实现.实例验证结果表明,完成32K点FFT只需要0.46ms,可用于GPS系统P码直捕的快速实现.
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