Sampling spectrum analyzer

Details Sampling spectrum analyzer Sampling spectrum analyzer

G - Physics

01

R

354/138, 324/37,

G01R 23/175 (2006.01)

Patent

CA 1165890

SAMPLING SPECTRUM ANALYZER ABSTRACT OF THE DISCLOSURE This invention is a sampling spectrum analyzer which provides instantaneous continuous wideband spectrum analysis, thus allowing R.F. signals occurring simultaneously and spaced within the band to be displayed. An input signal is split and each resulting portion is passed down a tapped delay line, samples at the taps being processed by separate arithmetic units. The output of each arithmetic unit is applied to the taps of output delay lines which are similar to the input delay lines. Each arithmetic unit weights the input samples with a set of coefficients and sums the resulting signal in a prescribed manner, thus transforming the signal into the frequency domain, according to a discrete Fourier Transform. The resulting sums are the real and imaginary terms of a signal which are vectorially added, resulting in a signal which is fed to the ordinate of a display having a swept time base representing frequency.

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