Titled Antenna In The Wireless System Of Mobile Communication

Intelligent antenna original name is from meet antenna array, initially apply in the aspects such as radar, sonar and military communication, strain mainly used for completion wave and location, for instance appearance control the radar of battle array is in which a kind of adopting than simple from the military product that meets antenna battle array. Intelligent antenna is the research people of mobile communication from meet antenna battle array the name that utilized in mobile communication, English name is Smart Antenna or Intelligent Antenna.This paper will introduce development and the research background of intelligent antenna in the TD-SCDMA system of mobile communication, Secondly, the related technologies such as basic concept and theory for intelligent antenna have gone on, is detailed to elaborate, MUSIC algorithm is related finally through having put forward the cycle of improvement for the research with the intelligent antenna technical medium wave reaching direction algorithm.The focal point of paper is the intelligence with existing research the estimated algorithm with the antenna technical medium wave reaching direction realization method with is below, And then circulating mutually barrier MUSIC that puts forward improvement algorithm and the improvement that proves this algorithm through emulation experiment is effective. Most classics exceed the space table estimated method of resolution capacity is the MUSIC algorithm that Schmidt puts forward in 1979. Under the accurate condition of model, on this algorithm accurate estimated space the direction that does not reach related to wave mutual . However for space on is separated by more near little signal-to-noise ratio signal MUSIC algorithm can not very good distinguish their wave reach direction, the channel of solution is the signal table correlated characteristics that uses goal signal in order to raise the stability of signal table. MUSIC algorithm for is will the circulating steady property of signal the handling used in array signal in, so raise the handling of signal further quality, have better rash sound to restrain property and resolution.