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Issue No.03 - March (1977 vol.26)
pp: 305-308
M. Sundaramurthy , Sir George Williams University
This correspondence presents some results in fixed-point error analysis of fast Fourier transform algorithms. Two kinds of schemes for preventing overflow are considered in the analysis. The results, obtained for the decimation-in-frequency form of the algorithm, are compared with those of decimation-in-time. The results show that the error performance of the decimation-in-frequency algorithm is better than that of decimation-in-time.
Decimation-in-frequency, decimation-in-time, FFT algorithms, roundoff errors, signal-to-noise ratio.
M. Sundaramurthy, V.U. Reddy, "Some Results in Fixed-Point Fast Fourier Transform Error Analysis", IEEE Transactions on Computers, vol.26, no. 3, pp. 305-308, March 1977, doi:10.1109/TC.1977.1674827
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