Passive multi-array sonar detection tracking method specific to discontinuous target

A detection and tracking, discontinuous technology, applied in the direction of measuring devices, sound wave re-radiation, radio wave measurement system, etc., can solve the problem of incomplete observation of single passive array sonar, achieve wide applicability, simple solution process, and tracking performance Good results
CN110456360AActive Publication Date: 2019-11-15UNIV OF ELECTRONIC SCI & TECH OF CHINA
9 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2019-11-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a passive multi-array sonar detection tracking method specific to a discontinuous target, applied to the field of passive detection and aiming at solving the problems of divergent detection tracking, target recognition failure and track breakage in the prior art. The method comprises the following steps: performing modeling on a discontinuous array receiving signal, and according to the built model, obtaining measurement data of multiple array sonars; based on the obtained measurement data, building a joint likelihood function, and constructing a joint likelihood ratiofunction; and according to a value of a joint likelihood ratio and by combining the joint likelihood function, performing estimation on a state of a target and discontinuity of the target. The methoddisclosed by the invention not only can effectively recognize the discontinuity of the target but also is obviously improved in discontinuous target tracking precision.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of passive detection, in particular to a passive multi-array sonar target detection and tracking technology. Background technique

[0002] In the context of the increasing demand for marine resources and the increasing frequency of ocean conflicts in modern times, sonar technology has attracted much attention at home and abroad. In modern high-tech warfare, due to the emergence of stealth weapons, low-altitude / ultra-low-altitude penetration and other technical means, the target detection and tracking system is facing increasingly serious threats. Passive array sonar detection technology will play an increasingly important role in future information-based naval warfare because of its good concealment and invulnerability to attack.

[0003] However, since a single passive sonar sensor can only detect target azimuth information and cannot provide target distance information, it has incomplete observation. In order to s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More