Supercharge Your Innovation With Domain-Expert AI Agents!

While-drilling electromagnetic wave transmission system based on OFDM

A transmission system and electromagnetic wave technology, applied in the field of electromagnetic wave transmission, can solve the problems of low signal transmission rate and signal reduction

Active Publication Date: 2021-09-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, an OFDM-based electromagnetic wave transmission system while drilling provided by the present invention solves the problem that the signal transmission rate is not high when using a lower frequency carrier signal for transmission in the prior art, and in The problem of reducing the bit error rate of the signal during channel transmission

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
  • While-drilling electromagnetic wave transmission system based on OFDM
  • While-drilling electromagnetic wave transmission system based on OFDM
  • While-drilling electromagnetic wave transmission system based on OFDM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] like figure 1 As shown, an OFDM-based electromagnetic wave transmission system while drilling includes a ground demodulation part and a downhole modulation part connected by communication;

[0034] The ground demodulation part includes a first filter module, an ADC conversion module, a first...

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 while-drilling electromagnetic wave transmission system based on OFDM, which is high in signal transmission rate and solves the problem of high bit error rate in a channel transmission process. According to the method, OFDM modulation and demodulation are adopted, information bits can be flexibly distributed according to the actual situation of a channel, limited bandwidth resources can be more effectively utilized, the service quality of the whole system is improved, multipath and narrow-band interference can be resisted, and the error rate performance is improved.

Description

technical field [0001] The invention belongs to the field of electromagnetic wave transmission, and in particular relates to an OFDM-based electromagnetic wave transmission system while drilling. Background technique [0002] With the growth of our country's demand for underground resources, our country is exploring more and more useful substances in the seabed and other strata. The measurement-while-drilling wireless electromagnetic wave transmission technology mainly uses lower-frequency electromagnetic waves to transmit real-time data measured by logging tools during downhole drilling. However, as the degree of exploration increases, the types of oil and gas reservoirs in my country become more and more complex, and the difficulty of oil extraction becomes more and more difficult. How to accurately and effectively understand the status of downhole oil and gas reservoirs in order to maximize oil extraction has become an urgent problem to be solved in today's society. At ...

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): H04L27/26H04L7/00
CPCH04L27/26524H04L27/2656H04L27/2659H04L27/2662H04L27/2671H04L27/2672H04L27/2688H04L27/2691H04L27/2666H04L7/0012Y02D30/70
Inventor 孙向阳吴勤郭成诚刘西恩胡俊
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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