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- W2091803822 abstract "A microprocessor-based Walsh-Fourier spectral analyzer is described. It includes the sampling of the incoming signal at 64 times the input signal frequency, using a special purpose frequency multiplier module (FMM), storing the digital data in a permuted sequence in the system memory under the control of a direct memory access (DMA) controller, and performing a fast Walsh-Hadamard transform (FWHT) of the permuted data sequence. The system uses a single board computer SBC80/10 in an Intel System 80/10 and a special purpose board which includes FMM, DMA, and A/D conversion circuits. Fourier coefficients are obtained via a Walsh to Fourier conversion algorithm; the total process is then faster than the Cooley-Tukey FFT algorithm for a data length of 64 or less." @default.
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- W2091803822 date "1979-12-01" @default.
- W2091803822 modified "2023-09-24" @default.
- W2091803822 title "Microprocessor-based walsh-fourier spectral analyzer" @default.
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- W2091803822 doi "https://doi.org/10.1109/tim.1979.4314835" @default.
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