Title :
The maximin algorithm for adaptive arrays and frequency-hopping communications
Author :
Bakhru, Kesh ; Torrieri, Don J.
Author_Institution :
Cubic Corp., San Diego, CA, USA
fDate :
9/1/1984 12:00:00 AM
Abstract :
An algorithm is described for maximizing of the signal-to-interference-plus-noise ratio (SINR) at the output of an adaptive array. The algorithm discriminates between the desired signal and any interference on the basis of the spectral characteristics of frequency-hopping signals. The algorithm maximizes the SINR by maximizing the desired.signal output power while simultaneously minimizing the interference-plus-noise output power. Rapid convergence of the weights to the steady-state values is achieved by the adjustment of the loop gain as a function of the estimated SINR at each iteration. Implementation of the algorithm in conjunction with a frequency-hopping modem is explained. Computer simulation results describe both the steady-state and transient responses of the system under various jamming conditions. The results indicate a rapid dynamic response and the steering of deep nulls over a wide range of the SINR.
Keywords :
Adaptive arrays; Frequency-hop communication; Adaptive arrays; Computer simulation; Convergence; Frequency; Interference; Jamming; Modems; Power generation; Signal to noise ratio; Steady-state;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1984.1143440