发明名称 Circuit for the fast calculation of the discrete Fourier transform of a signal
摘要 A circuit for the rapid calculation of the real and imaginary parts of the h first harmonics of a signal supplied by a measuring device and particularly for the analysis of the voltage supplied by a non-destructive eddy current testing probe. The circuit comprises an analog-digital converter, a random access memory, and calculating means comprising a PROM, a counter, a multiplier, an accumulator and a sequencer.
申请公布号 US4630229(A) 申请公布日期 1986.12.16
申请号 US19830467761 申请日期 1983.02.18
申请人 INTERCONTROLE SOCIETE ANONYME 发明人 D'HONDT, JEAN-PIERRE
分类号 G01N27/90;G06F17/14;(IPC1-7):G06F7/34 主分类号 G01N27/90
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