The United States of America as represented by the Secretary of the Air Force - Washington DC
International Classification:
G01R 2316
US Classification:
324 7622
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.
Horace Mann Elementary School Pampa TX 1954-1960, Washington Junior High School Bakersfield CA 1960-1961, Pampa Junior High School Pampa TX 1961-1962, Colton Junior High School Colton CA 1961-1962
Alaina Dixon, Darla Tucker, Linda Choate, Roy Grace, Jancy Howeth, Kathy Saaty, Lodi Sills, Stefan Fisher, Sean Chalepah, Billie Whitley, David Choate, Alice Richards