Simulation method for open type array signal

A simulation method and array signal technology, applied in the field of signal processing, can solve problems such as not having

Active Publication Date: 2014-07-16
SOUTHEAST UNIV
View PDF2 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you want the simulation signal to approach the radiation signal of a specific ship, you need to set the simulation parameters accurately, but sometimes you don’t have these parameter information; The desire for a passive sonar array signal simulation system that retains the characteristics of the measured data is becoming stronger and stronger

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Simulation method for open type array signal
  • Simulation method for open type array signal
  • Simulation method for open type array signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0124] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0125] Such as figure 1 Shown, the simulation method of a kind of open array signal of the present invention comprises the following steps:

[0126] Step 1: Obtain the real-time target movement trajectory of the underwater acoustic target: first establish a three-dimensional rectangular coordinate system: the position of the end of the line array arranged at equal intervals is the center O, and the direction in which the hull drags the line array arranged at equal ...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a simulation method for an open type array signal. The method includes the following steps of firstly, obtaining the real-time target movement path of an underwater sound target; secondly, obtaining an underwater sound target radiation noise signal; thirdly, calculating coordinates of all array elements of linear arrays arrayed at equal intervals after array form distortion; fourthly, generating a real-time ocean channel pulse response sequence; fifthly, generating array element signals under the condition that no array element random shaking exists; sixthly, obtaining an array element signal, practically generated, of the i7th array element when random shaking occurs; seventhly, obtaining real-time ocean environment noise signals of the array elements; eighthly, obtaining a passive sonar array signal. By means of the simulation method, openness of an array signal simulation system can be achieved.

Description

technical field [0001] The invention belongs to the field of signal processing, and in particular relates to a simulation method of an open array signal. Background technique [0002] The traditional underwater acoustic array signal simulation system has a single structure. On the one hand, most of the traditional hydroacoustic target motion trajectory simulations are simulations of typical motion modes, such as straight-line routes, circular (arc) routes and serpentine tracking routes. Among them, the straight-line route is the most common way for torpedoes to attack the target; the circular (arc) route is one of the main ways for the target to align its track, and its main feature is that the target moves in a circular arc with equal radius in the horizontal plane; Route is a main way for submarines to track and detect enemy targets, and it includes two parts: serpentine movement and tracking. However, these typical motion modes are limited to smooth motion, single motio...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/52
CPCG01S7/539G01S15/58
Inventor 方世良徐雅南罗昕炜
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap