Fast fourier transforming device
专利汇可以提供Fast fourier transforming device专利检索，专利查询，专利分析的服务。并且PURPOSE:To speed up arithmetic, by performing fast Fourier transform on division parallel basis by plural processors. CONSTITUTION:When the fast Fourier transform (FFT) in a time thinning-out method of N=16 is performed, the front half part is divided into four firstly and the FFT of the four divided parts is performed; and the results are rearranged according to a specific rule REARR, and the FFT of four divided parts of the rear half part are performed. The front half part FH and rear half part LH are performed at different timing, so the same processor is used to process the front and rear half parts (namely, the processor 1 performs FF1 and FF5) and four processors perform the arithmetic in parallel. Each processor transmits and receives data to and from a memory and performs processing following procedures (1)-(4). Namely, the procudure (1) is from the memory to the front half part FFT and the procedure (2) is from the front half part FFT to the memory; and the procedure (3) is from the memory to the rear half part FFT and the procedure (4) is from the rear half part FFT to the memory.，下面是Fast fourier transforming device专利的具体信息内容。
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