| US 7,580,448 B2 | ||
| Method and apparatus for channel amplitude estimation and interference vector construction | ||
| Anand P. Narayan, Boulder, Colo. (US); and Prashant Jain, Northglenn, Colo. (US) | ||
| Assigned to TENSORCOMM, Inc, Greenwood Village, Colo. (US) | ||
| Filed on Oct. 15, 2003, as Appl. No. 10/686,829. | ||
| Claims priority of provisional application 60/418187, filed on Oct. 15, 2002. | ||
| Prior Publication US 2004/0098433 A1, May 20, 2004 | ||
| Int. Cl. H04B 1/00 (2006.01) | ||
| U.S. Cl. 375—148 | 21 Claims |
| 1. A method for signal processing comprising:
performing a first fast Walsh transform on a first set of magnitudes to obtain a result;
modifying the said result to obtain a first modified result;
performing at least a second fast Walsh transform on the said first modified result to obtain a second modified result;
where modifying the said result comprises:
storing a result of said performing a first fast Walsh transform in a first register;
comparing each magnitude comprising said result of performing said at least a first fast Walsh transform to a threshold value;
and
replacing each magnitude of said stored result of performing said first fast Walsh transform that is greater than said threshold
value with a zero to obtain the first modified result.
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