Stefen Y Hui

58896880, Mar 30, 1999

Sep 30, 1997

8/941816

James W. Bond - San Diego CA
Stefen Hui - Spring Valley CA
David Stein - San Diego CA
James Zeidler - San Diego CA

United States of America as represented by the Secretary of the Navy - Washington D.C.

G06F 1500
G06F 1710

36472601

A frequency domain kernel phase processor comprises an input buffer to st Fourier coefficients input from a Fourier transform of a communications signal. A communications signal suitable for processing by the present invention typically comprises a desired signal masked by a stronger interference signal having varying power that spans a range of frequency bins encompassing the desired signal. A scheduler inputs Fourier transform coefficients from the input buffer and generates a series of magnitude squares and symmetric phase differences for each frequency bin. The magnitude squares and the symmetric phase differences are output to phase transform processors which transform the symmetric phase differences to reveal the desired signal. The transformed outputs from the phase transform processors are output to an output buffer to be formatted and displayed.

60728450, Jun 6, 2000

Apr 16, 1997

8/843499

James W. Bond - San Diego CA
Stefen Hui - Spring Valley CA
William Y. Velez - Tucson AZ

The United States of America as represented by the Secretary of the Navy - Washington DC

H04B 110

375350

A simplified interference suppressor extends the applicability of adaptive ocally optimum techniques to high speed communication systems. Traditional adaptive locally optimum processing amplitude quantity techniques compel baseband sample amplitudes calculation requiring square root operations that could limit the use of these techniques. The simplified interference suppressor utilizes amplitude squared values of baseband samples while maintaining the performance of those processing algorithms requiring the complexities of baseband sample amplitude calculation.

59034831, May 11, 1999

Aug 12, 1997

8/909748

James W. Bond - San Diego CA
Stefen Hui - Spring Valley CA
David Stein - San Diego CA
James Zeidler - San Diego CA

The United States of America as represented by the Secretary of the Navy - Washington DC

G06F15/00

36472601

The frequency domain kernel processor of the present invention comprises a cheduler for selecting samples from blocks of Fourier transform coefficients in a predetermined sequence and for outputting the selected samples as serial terms s and as parallel terms u. A transform processor is coupled to the scheduler to receive the terms s and u. The transform processor comprises transform calculators for calculating output values p and f as functions of terms s and u to model the interference and to reveal the desired signal, a first sum calculator for calculating a sum of p values, a second summing calculator for calculating a sum of f values, and a divider for calculating, the quotient of the sum of p values divided by the sum of f values. An output buffer stores the outputs of the divider for formatting as a spectral display.