Title :
PSO algorithm for amending the “minus beam” pointing error after phase defocusing
Author :
Li, Jin ; Ding, Ying ; Hu, Rong ; Song, Lianguo
Author_Institution :
Commun. Repair shop, Weifang
Abstract :
The ldquominus beamrdquo steering of the phased arrays deviates from the given direction because of the quantization phase in the digital phased shifter. This paper studied the theory of wide-beam and ldquominus beamrdquo and investigated the model of the particle swarm optimization method on the arrayspsila beam steering, and modified the range of the position and speed factor by the principle of random phase quantization. The simulating results show the effectiveness and correctness of the method.
Keywords :
antenna phased arrays; beam steering; particle swarm optimisation; quantisation (signal); PSO algorithm; digital phased shifter; minus beam pointing error; minus beam steering; particle swarm optimization method; phase defocusing; phased arrays; quantization phase; random phase quantization; Antenna arrays; Directive antennas; Electromagnetic scattering; Phase shifters; Phased arrays; Quantization; Radar antennas; Radar tracking; Spaceborne radar; Target tracking; PSO algorithm; digital phase shifter; minus beam; phased array phase defocusing; quantization error;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735487
