An integrated method for underwater communication and detection

A technology for underwater communication and target detection, which is used in measurement devices, radio wave measurement systems, transmission monitoring, etc. The effect of refresh rate

Active Publication Date: 2021-04-06
HARBIN ENG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, underwater acoustic communication and underwater acoustic detection have strong similarities in terms of theoretical basis, system structure, and signal processing, which provides the possibility for the realization of the integration of underwater acoustic communication and detection.
However, the relatively mature radar communication integration technology on land cannot be applied underwater due to the high complexity of the underwater acoustic channel.

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
  • An integrated method for underwater communication and detection
  • An integrated method for underwater communication and detection
  • An integrated method for underwater communication and detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] The steps of the present invention are as follows:

[0044] On the transmitter side:

[0045] (1) Select the signal that meets the requirements as the Pattern code of the DPDS system;

[0046] The selection of signals that meet the requirements must not only meet the requirements of DPDS coded communication, but also be able to be detected as active sonar waveforms, and generate a large number of waveforms that occupy the same frequency band and are orthogonal to each other.

[0047] (2) Generate a large number of GSFM signals that occupy the same frequency band and are nearly orthogonal to each other by adjusting parameters and frequency conversion;

[0048] The GSFM signal is selected as the Pattern code, and the function expression of the GSFM signal is: Among them, rect(t) is a rectangular function; T is the pulse width...

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 present invention provides an integrated method for underwater communication detection. Based on the Differential Pattern Time Delay Difference Code (DPDS) system, a signal that meets the requirements is selected as the Pattern code of the DPDS system, and the communication information is modulated between adjacent Pattern codes. In the delay difference, each Pattern code is used as an active sonar detection waveform. Determining the decoding process of the integrated communication detection signal at the communication receiving end and the processing flow of receiving the target echo at the echo signal receiving end. The communication receiver uses a copy correlator to obtain the delay difference of each symbol to complete the decoding; the integrated signal transmitter uses a multi-channel matched filter to measure the parameter changes of the echo signal and determine the distance and speed of the target. In order to complete the active sonar target detection. The present invention has the advantages of (1) simultaneous underwater acoustic communication and underwater acoustic detection; (2) maximum utilization of equipment; (3) effective improvement of sonar work efficiency; (4) real-time underwater multi-acoustic detection Co-probing between platforms.

Description

technical field [0001] The invention relates to an integrated underwater communication detection method, which belongs to the field of underwater acoustic communication and underwater acoustic detection. Background technique [0002] The idea of ​​communication and detection integration technology originated from the field of radar communication integration. Most land combat systems are equipped with radar and communication electronic systems. The integration of radar communication systems can realize resource sharing, dynamic grouping and high availability. , while reducing system electromagnetic interference and energy consumption, reducing maintenance costs, thereby improving the overall performance of the electronic system. [0003] Similar to the situation on land, there are also requirements for detection and communication underwater. In recent years, underwater combat methods have gradually developed towards informatization and networking. The existing sonar system h...

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 Patents(China)
IPC IPC(8): H04B13/02H04B11/00H04B1/40H04B17/00G01S15/88
CPCG01S15/88H04B1/40H04B11/00H04B13/02H04B17/00
Inventor 殷敬伟门伟韩笑朱广平郭龙祥
Owner HARBIN ENG 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