The Study Of Pattern Synthesis Algorithm For Adaptive Antenna

The pattern synthesis method for adaptive arrays uses adaptive arrays' characteristic and applies adaptive algorithm to design the arrays' weights. The main research work of the paper is that in this, several adaptive algorithms are analyzed and the characteristic of adaptive linear arrays and circular arrays is discussed. On the traditional pattern synthesis method base, the paper adopts a adaptive algorithm to synthesize uniform linear arrays and then thinks elements whose patterns are different. Two conditions are simulated separately.At first, The paper illuminates simply pattern synthesis method for arrays and shows basic factors of pattern synthesis for arrays. Then, it discusses several traditional adaptive algorithm and simulates uniform linear arrays and circular arrays using them. The result shows anti-jamming characteristic of adaptive linear arrays and circular arrays very well and finds their own' advantage and shortcoming and applying scope. We know that the circular arrays has the advantages the line array has not in the wider scanning range. Subsequently, two kinds of traditional pattern synthesis means are introduced simply, Chebyshev synthesis means and Taylor synthesis means. We can acquaint that there are many defects in the traditional pattern synthesis means. Lastly, the paper presents a pattern synthesis algorithm for adaptive arrays whose designed weights use the result of DMI algorithm and that can control sidelobe level arbitrarily and overcome traditional means' shortcoming. It only need quite little compute time and ownsextensively applied scope. Simulating results in two conditions complete the required design very well.