Unlock instant, AI-driven research and patent intelligence for your innovation.

A multi-channel sonobuoy signal preprocessing system and method

A sonobuoy and preprocessing technology, applied in the field of signal processing, can solve problems such as phase consistency difference, and achieve the effect of stable difference, easy to popularize and use, and good stability.

Active Publication Date: 2022-07-05
西安瑞祥深海科技有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While realizing low-noise preprocessing, the present invention solves the stability problem of multi-channel amplitude and phase consistency differences, thereby improving the multi-channel preprocessing performance of sonar; meanwhile, the structure is simple, easy to realize by hardware, and has strong practicability , easy to promote and use

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
  • A multi-channel sonobuoy signal preprocessing system and method
  • A multi-channel sonobuoy signal preprocessing system and method
  • A multi-channel sonobuoy signal preprocessing system and method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0052] The number of sonar signal receiving channels is 24, the center frequency of the system is 3KHz, and the amplification gain is 120dB. Use shielded cables for connecting cables.

[0053] The specific implementation of this embodiment is as follows:

[0054] (a) The shielding layers of the 24 channels are connected at one point, and the shielding layer connection point is connected to seawater when the sonar is working.

[0055] (b) Select INA118 as the preamplifier chip and TPS4701 as the power supply chip. GND is connected to the shield metal shell of the preamplifier.

[0056] (c) The second capacitor and the fifth capacitor are connected in parallel, and the capacitance value of the fifth capacitor is 2200pF. The second capacitor is disconnected when the circuit is initially soldered. The eighth resistor and the ninth resistor are connected in series as a feedback resistor, the ninth resistor is short-circuited during the initial welding circuit, and the resistanc...

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 multi-channel sonobuoy signal preprocessing system and method. , an amplitude adjustment circuit and a low-pass filter circuit; on the basis of designing a low-noise preamplifier circuit, the present invention adopts an integrated grounding shielding technology to effectively reduce the pre-processing broadband noise interference. Use high-precision resistors and capacitors to adjust multi-channel consistency, and use the reliability of resistance-capacitor devices to ensure the stability of multi-channel high consistency. While realizing low-noise preprocessing, the present invention solves the problem of stability of multi-channel amplitude and phase consistency differences, thereby improving the multi-channel preprocessing performance of the sonar; meanwhile, the invention has a simple structure, is easy to implement in hardware, and has strong practicability. , which is convenient for promotion and use.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a sonar signal preprocessing system. Background technique [0002] The pros and cons of aerial sonar buoys, dangling sonar and other related products for long-distance detection of underwater targets depend heavily on the low-noise amplification and filtering technology of weak sonar signals. processing technology. When this type of product works with a single machine or when multiple arrays work together, the frequency of transmitting and receiving signals is often known. With the development of array technology, the number of sonar receiving channels has increased sharply. In order to improve the detection distance and detection accuracy of targets, the low noise, amplitude consistency, phase and phase preprocessing of multi-channel preprocessing at the working frequency of the sonar system Consistency imposes extremely stringent requirements. [0003] ...

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): H04R3/00H04R3/04
CPCH04R3/00H04R3/04
Inventor 郑琨王英民诸国磊陶林伟牛奕龙王奇
Owner 西安瑞祥深海科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com