Title :
The adaptive nulling systems for a narrowband signal with a look-direction constraint
Author :
Sarkar, T.K. ; Sangruji, N.
Author_Institution :
Dept. of Electr. Eng., Syracuse Univ., NY, USA
Abstract :
The problem of adaptively adjusting the weights of an array to eliminate unwanted interference sources (jammers) with an arbitrary look-direction constraint is considered. The technique uses the conjugate gradient method to eliminate the jammer components, thus, minimizing the error between the received signal and the actual one. This iterative method minimizes the L/sub 2/ norm, or the mean square error, and converges in a finite number of steps.<>
Keywords :
antenna phased arrays; antenna theory; interference suppression; iterative methods; jamming; adaptive antenna arrays; adaptive nulling systems; array; conjugate gradient method; iterative method; jammers; look-direction constraint; mean square error; narrowband signal; received signal; unwanted interference sources; Adaptive systems; Antenna accessories; Antenna theory; Jamming; Narrowband; Receiving antennas; Signal processing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1988. AP-S. Digest
Conference_Location :
Syracuse, NY, USA
DOI :
10.1109/APS.1988.94256
