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Fast fourier transform processor, dynamic scaling method and fast Fourier transform with radix-8 algorithm
Fast fourier transform processor, dynamic scaling method and fast Fourier transform with radix-8 algorithm
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机译:快速傅立叶变换处理器,动态缩放方法和使用radix-8算法的快速傅立叶变换
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摘要
The present invention provides a fast Fourier transform processor, dynamic scaling method and fast Fourier transform with radix-8 algorithm. It reduces quantization errors generated from the operation by using a matrix prefetch buffer-based fast Fourier transform processor. Operation sizes of the matrix prefetch buffer as block sizes the invention adjust the signals against overflow by the status of signals in each block. It can shunt time of complex multiplication operation systematically and reduce operation complexity in butterfly units by utilizing algorithms of 3-step radix-8 fast Fourier transform and re-scheduling. Moreover, the present invention provides a fast Fourier transform processor for realizing the methods and algorithms mentioned above.
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