Adaptive Array Beamforming Algorithm Of Smart Antenna In SDR And It's Implementation On DSP

Smart antennas is the adaptive antennas whick have definite degreebrainpower. It can self-adjust phase of array element to achieveadaptive beamforming zero position to face interference direction .Smartantennas is a key technology in software-radios.In mobile communication, the position of user stochastically changesand the existence of many interference resoures, space filter algorithm musttrack user simultaneously .So the rate of algorithm and precision shouldhave enough high, this is the key of whether or not smart antennatechnology can be practical application, to implement the smart-antennaintelligent, this article via each kind of intelligence algorithm system tocompare, emphasize on using nulling widen algorithm, space smoothingalgorithm and eigenspace algorithm applied in beamforming, exploringcorresponding MATLAB program to the simulation. The outcome indicatesthat the methods is validity. In the last, a applied algorithm can beimplemented with DSP and introducing a smart antennas in SDR.