New Estimation Methods Of Sensors Gain And Phase In Perturbed Array

In this paper, we consider two new methods of estimation of gain and phase of sensors in a perturbed array. Usually, the gain and phase of sensors such as hydrophone in using, are changed form nominal values. This paper concludes two different method as using calibration signal and in which strong and weak signal is received. First method, using calibration signal and based on two data model so general and improved approach, gain and phase are computed. In last scenario,the strong target is exist and direction of arrival of the target and so the matrix of gain and phase of sensors are estimated. Using simulation, the capabilities of methods are showed.