The maximin algorithm for adaptive arrays and frequencyhopping communications
Abstract
An algorithm is described for maximizing of the signaltointerferenceplusnoise 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 frequencyhopping signals. The algorithm maximizes the SINR by maximizing the desiredsignal output power while simultaneously minimizing the interferenceplusnoise output power. Rapid convergence of the weights to the steadystate 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 frequencyhopping modem is explained. Computer simulation results describe both the steadystate 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.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 September 1984
 DOI:
 10.1109/TAP.1984.1143440
 Bibcode:
 1984ITAP...32..919B
 Keywords:

 Adaptive Control;
 Antenna Arrays;
 Frequency Hopping;
 Noise Reduction;
 Signal To Noise Ratios;
 Transmission Efficiency;
 Algorithms;
 Antenna Radiation Patterns;
 Computerized Simulation;
 Convergence;
 Jamming;
 Radio Communication;
 Radio Frequency Interference;
 Signal Processing;
 Communications and Radar