scholarly journals Two-Channel Monopulse Antenna Null Steering

2020 ◽  
Author(s):  
Armin Doerry ◽  
Douglas Bickel
Keyword(s):  
Null Steering

scholarly journals Null Steering in Failed Antenna Arrays

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Om Prakash Acharya ◽  
Amalendu Patnaik ◽  
Sachendra N. Sinha
Keyword(s):  
Antenna Array ◽  
Antenna Arrays ◽  
Side Lobe ◽  
Side Lobe Level ◽  
Correction Procedure ◽  
Swarm Optimization ◽  
Array Pattern ◽  
Null Steering ◽  
Simulation Results ◽  
Pattern Simulation

Antenna array pattern nulling is desirable in order to suppress the interfering signals. But in large antenna arrays, there is always a possibility of failure of some elements, which may degrade the radiation pattern with an increase in side lobe level (SLL) and removal of the nulls from desired position. In this paper a correction procedure is introduced based on Particle Swarm Optimization (PSO) which maintains the nulling performance of the failed antenna array. Considering the faulty elements as nonradiating elements, PSO reoptimizes the weights of the remaining radiating elements to reshape the pattern. Simulation results for a Chebyshev array with imposed single, multiple, and broad nulls with failed antenna array are presented.

scholarly journals Optimum Array Configuration to Improve Null Steering Time for Mobile CRPA Systems

2016 ◽  
Vol 16 (2) ◽  
pp. 74-79 ◽  
Author(s):  
Gangil Byun ◽  
Jong-Chul Hyun ◽  
Seung Mo Seo ◽  
Hosung Choo
Keyword(s):  
Array Configuration ◽  
Null Steering
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