| US 7,414,578 B1 | ||
| Method for efficiently computing the beamforming weights for a large antenna array | ||
| Thomas A. Courtade, Coopersville, Mich. (US); and Dana J. Jensen, Marion, Iowa (US) | ||
| Assigned to Rockwell Collins, Inc., Cedar Rapids, Iowa (US) | ||
| Filed on Sep. 27, 2006, as Appl. No. 11/528,058. | ||
| Int. Cl. H01Q 3/00 (2006.01); G01S 5/02 (2006.01) | ||
| U.S. Cl. 342—377 [342/372; 342/378; 342/423] | 18 Claims |
| 1. A method of beamforming for an antenna array, comprising:
choosing a number of sub-array antenna elements from an array of antenna elements using an iterative algorithm;
correlating an incoming signal with a training sequence at each element of the sub-array to produce correlation data of the
received signal at each sub-array element;
estimating a direction of arrival of the signal using the correlation data; and
computing weights for the antenna array.
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