Design of passive acoustic localization system based on cross correlation time delay estimating algorithm

A passive acoustic localization model is put forward based on six element cross arrays.

Aim To evaluate the availability of passive acoustic localization and tracking.

Passive acoustic location algorithm based on a six-element detection array and its performance analysis;

Using the noise of the campaign objectives, thereby identifying the target location information technology is the key to passive acoustic location,which is widely used in military.

In passive acoustic direction finding system,precision of direction estimate is greatly affected by the precision of time delay estimation,array aperture,the variation of underwater sound velocity,especially by the precision of time delay estimation.

In this thesis, several key technologies of passive acoustic direction are studied.

The design and implementation of a small scale 8-channel acoustic passive localization system based on DSP are introduced.

According to the characters of the NLOS acoustic passive localization and tracking technology,a method of NLOS acoustic passive localization based on ray tracing is presented,and the Kalman filtering is applied to trace both static and moving targets.

This paper, discusses target localization by using the theory of acoustic passive localization in the air.

Time-delay estimation technique is the key to the passive acoustic location technology and the focus of this paper.