To reduce the errors in detecting a target caused by the perturbed array shape, a simple pre-processing for a perturbed linear towed array is proposed. The proposed method linearizes a nonlinear phase of steering vector with position information measured by two reference sensors. It is based on the concept that a hydrophone's position may be decided by two adjacent hydrophones. Through the numerical experiments, the performance of the proposed method for the direction-of-arrival estimation was evaluated for various signal-to-noise ratio situations. The results showed that the proposed method estimated the characteristic of sources with more accuracy.
|Number of pages||4|
|Journal||Oceans Conference Record (IEEE)|
|Publication status||Published - 2001|
All Science Journal Classification (ASJC) codes