Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A single-frequency strong interference suppression system applied to energy-carrying communication systems

A technology with energy-carrying communication and strong interference, which is applied in the field of single-frequency strong interference suppression system, can solve problems such as the influence of useful signals, and achieve the effects of simplicity, cost reduction, and low complexity

Active Publication Date: 2019-04-30
XIAN INSTITUE OF SPACE RADIO TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these two methods is that while suppressing the interference signal, it will also have a certain impact on the useful signal.

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 single-frequency strong interference suppression system applied to energy-carrying communication systems
  • A single-frequency strong interference suppression system applied to energy-carrying communication systems
  • A single-frequency strong interference suppression system applied to energy-carrying communication systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The frequency of the single-frequency strong interference signal in this embodiment is within the bandwidth of the useful signal. Figure 3(a) is a schematic diagram of the frequency spectrum after the superimposition of a 5.8GHz sinusoidal signal and a QPSK signal with a center frequency of 5.8GHz. During the simulation process, the carrier amplitude difference between the sinusoidal signal and the QPSK signal is 20dB. Figure 3(b) is a schematic diagram of the frequency spectrum of a QPSK signal whose center frequency is 5.8 GHz after the 5.8 GHz sinusoidal signal is suppressed.

Embodiment 2

[0044] The frequency of the single-frequency strong interference signal in this embodiment is outside the useful signal bandwidth. Figure 4(a) is a schematic diagram of the frequency spectrum after the superimposition of a 5.8GHz sinusoidal signal and a QPSK signal with a center frequency of 6.0GHz. During the simulation process, the carrier amplitude difference between the sinusoidal signal and the QPSK signal is 20dB. Figure 4(b) is a schematic diagram of the frequency spectrum of a QPSK signal whose center frequency is 6.0 GHz after the 5.8 GHz sinusoidal signal is suppressed.

[0045] It can be seen from the figure that regardless of whether the single-frequency strong interference signal is within or outside the bandwidth of the useful signal, by using figure 1 The interference suppression method shown can effectively suppress the interference, and will not have a great impact on the useful signal, because the present invention generates a reference cancellation signal wi...

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

A single-frequency strong-interference suppressing system applied to a portable communication system comprises a directional coupler, an amplitude stabilizing module, a variable-frequency channel and a power combiner. The variable-frequency channel is used for generating a reference signal which has an amplitude that is same with that of an interference signal and a phase that is opposite from that the of the interference signal. Through setting a single-frequency strong-interference spectrum to zero, interference suppression is realized. Compared with a wave trapping filtering method, a large influence on a useful signal is prevented even when the frequency of the interference signal is in the bandwidth of the useful signal. A single-frequency strong-interference suppressing system is applied to the portable communication system and can realize simultaneous transmission of different carriers in a communication signal and an energy signal. Under a precondition that real-time communication signal transmission is ensured, energy transmission efficiency does not reduce.

Description

technical field [0001] The invention relates to a single-frequency strong interference suppression system, in particular to a single-frequency strong interference suppression system applied to an energy-carrying communication system, and belongs to the field of microwave wireless energy transmission and wireless communication. Background technique [0002] Coordinated transmission of wireless information and energy (energy-carrying communication) technology is the product of the combination of wireless energy transmission technology and wireless communication technology. On the one hand, it can make full use of precious transmission power; on the other hand, it can free mobile devices in complex working environments from the shackles of cables and batteries, greatly improving the adaptability of mobile devices to extreme working environments, which has important practical significance. In 2008, Varshney first proposed and analyzed the problem of simultaneous transmission of...

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): H04B1/10H04B1/16
CPCH04B1/109H04B1/16
Inventor 付文丽董士伟董亚洲王颖刘硕朱舸李小军
Owner XIAN INSTITUE OF SPACE RADIO TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com