عنوان مقاله [English]
Presently, the conventional methods in Direction-Finding (DF)are substituted by new array processing algorithms. The new ones
are applied on many applications such as ,DF, RADAR, SONAR and etc. Although these are able to remove the failures of conventional algorithms, their abilities are affected by some factors such as, noise, unknown parameters of received signals,coupling effects of array sensors and many others.
On the other hand, Cramer-Rao Bound (CRB) is the minimum obtainable variance of the detection or resolution error. In this paper, it is intended we are intending to extract the positions of sensors from the CRB so that it goes to minimum value. Also, the results are applied on some arrays with different shapes (sensor positions).