The blind direction-of-arrival estimation implies estimating direction-of-arrival of source signals under the unknown channel structure and responSe and can extensively be aPPlied to wireless communications

radar

sonar and so on.Since the convergence of the existed adaptive blind separation algorithms is dependent on the statistic properties of the unknown source signals

in order to overcome this shortcoming

we propose an efficient algorithm for adaptive blind direction-ofarrival estimation based on the asymptotically convergent analysis for the available adaptive blind separation algorithms. Its handedness and asymptotic stability are given and proved. According to the requirement of the asymptotic stability of algorithm

we select appropriately the nonlinear functions in algorithm. For inhibiting the noise and estimating the number of sources

this algorithm also includes the whitening prccers of signals. The simulation rlts show that algorithm is efficient and robust

and estimates the direction-of-arrival from the source signals with noise.