Frequency measurement receiver with means to resolve two folding

Details Frequency measurement receiver with means to resolve two folding Frequency measurement receiver with means to resolve two folding

1993-03-29

1994-06-21

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324 7635, 324 7621, 342 20, 342 13, 364484, G01R 2316

Patent

active

053231031

ABSTRACT:
This is an arrangement to find two folding frequencies that fold into one frequency bin, which will save hardware. The input frequency in down converted into I and Q channels. Each channel requires one pair (two) of A/D converters. A total of three pairs of A/D converters are required. All three pairs of A/D converters have the SAME sampling frequency f.sub.s. There is a time delay of .tau. before the second pair of A/D converters, and 2.tau. before the third pair. At the outputs of the A/D converters FFT units followed by a signal processor are used to find the input frequencies by solving non-linear simultaneous equations.

REFERENCES:
patent: 2989744 (1961-06-01), Pettit
patent: 3913099 (1975-10-01), Wehner et al.
patent: 4359735 (1982-11-01), Lewis et al.
patent: 4504785 (1985-03-01), Tucker
patent: 4612545 (1986-09-01), Asendorf
patent: 4816832 (1989-03-01), Gold et al.
patent: 4866449 (1989-09-01), Gaffney
patent: 4893266 (1990-01-01), Deem
patent: 4951219 (1990-08-01), Zimmer
patent: 4963816 (1990-10-01), Tsui et al.
patent: 5077562 (1991-12-01), Chang et al.
patent: 5099194 (1992-03-01), Sanderso;n et al.
patent: 5099243 (1992-03-01), Tsui et al.
patent: 5109188 (1992-04-01), Sanderson et al.
patent: 5198748 (1993-03-01), Tsui
patent: 5235287 (1993-08-01), Sanderson

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