Modeling on Distance Error of Bistatic Sonar Detection

Abstract

Based on the principle of bistatic sonar orientation, we build the model of estimation on distance error considering the measured error of time, direction and acoustic velocity, and detailedly analyse the mean square error influenced by centrifugal rate of ellipse and orientation. The outcome of simulation indicate that the orientation and position of the targets apart from the sender and receiver impact the estimated precision of distance. On the condition of the distance of sender and receiver fixed, the position more apart from the sender and receiver, the distance estimation lower effect influenced by the orientation of targets, and the value of mean square error of distance keeps in a lower scope. According to the model of estimation presented by this paper, deploy the bistatic sonar reasonably can realized high precision and detected targets in a long distance.