Boots – shoes – and leggings
Patent
1994-02-14
1996-01-16
Cosimano, Edward R.
Boots, shoes, and leggings
324 7619, 324 7624, 324 7633, 36457101, G06F 1700, G01J 328
Patent
active
054853958
ABSTRACT:
An electronic system for processing sampled data signals to determine the frequency spectra of the signals comprises windowing the sampled signal to a length of an MN data point series. The series of data points is divided into M contiguous blocks numbered from 0 to M-1, each block containing N data points numbered from 0 to N-1. Each block is then added into a memory having N registers numbered from 0 to N-1, the value of the data point in each block being added into the value in the correspondingly numbered register such that each numbered register contains the sum of correspondingly numbered data points in the blocks, and such that the memory comprises a time-aliased series of N data points. The time-aliased series is then Fourier transformed, yielding a spectra with leakage consistent with a window of length MN at the spectral lines of the N-point transform. A smoothed sinc windowing function for leakage to adjacent spectral lines is also described.
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Brigham Young University
Cosimano Edward R.
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