A novel estimation technique of DOA of multiple waves incident on antenna array is proposed in this paper.This technique can resolve the problem that the number of signals cannot be more than the number of array elements that MUSIC and ESPRIT algorithms meet.With this technique

computational burden is reduced and accuracy is increased.It is suitable for antenna array of any geometry.At same time

signal frequency estimation is obtained and automatically paired 2-D estimation is also obtained for plane array.By use of responding techniques

estimating DOA of correlated signal sources is done.This paper takes an example of estimating 2-D angle (elevation and azimuth) of multiple plane waves of more than number of array elements incident on uniform circular array (UCA) and simulates.Finally

computer simulation result is given to confirm its practicability and effectiveness.