Direction of arrival estimation using a sparse circular array and multiplicative beamforming
Abstract
A computationally efficient method for estimating the angle of arrival of the strongest plane wave incident on a sparse circular antenna array is described. In the example investigated, the elements of the array are spaced by more than 5 1/2 lambda, eliminating the problems of mutual coupling. An unambiguous estimate of the angle of arrival is obtained by a beamforming approach. Results of computer simulations are presented which show the processing to be robust in the presence of noise, multipath signals, and antenna element positioning errors.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- July 1983
- DOI:
- 10.1109/TAP.1983.1143118
- Bibcode:
- 1983ITAP...31..678M
- Keywords:
-
- Antenna Arrays;
- Beams (Radiation);
- Omnidirectional Antennas;
- Plane Waves;
- Radio Direction Finders;
- Computerized Simulation;
- Coupling;
- Interpolation;
- Real Time Operation;
- Communications and Radar