| An important research field in modern signal processing is the research of robust parameter estimation techniques. High resolution direction-finding method using array signal processing technique plays a pivotal role in the new electronic reconnaissance satellite system. This dissertation devotes to explain the theory of array signal processing techniques and put the emphasis on researches of direction-of-arrival estimation algorithms. At first the classical direction-finding algorithms in array signal processing are introduced, some of them are simulated. After that with comparation of front space smooth algorithm, Using front-rear space smooth algorithm, save the quantity of computation. Aperture extension algorithm by cumulants, by which, emphatically researched for direction-finding. Getting the update algorithm of MUSIC-LIKE algorithm. At the end of the thesis, We give simple research of recycle-robust algorithm. And through MATLAB simulation prove the efficiency of the algorithm. A colligate direction-of arrival estimation scheme units to deformed uniform circular arrays is presented. |
