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

Radio Frequency Adaptive Interference Cancellation Device and Its Debugging Method

An interference cancellation and self-adaptive technology, which is applied in the transmission system, electrical components, etc., to improve the debugging accuracy and reduce the standing wave ratio of the measurement

Active Publication Date: 2020-12-04
NAVAL UNIV OF ENG PLA
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent "An Adaptive Interference Cancellation Device and Its Debugging Method (Application No.: 201110223502.7)" mentions a debugging method, but this debugging method is used to search for two-way cancellation weights and does not involve delay When matching the measurement accuracy problem

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
  • Radio Frequency Adaptive Interference Cancellation Device and Its Debugging Method
  • Radio Frequency Adaptive Interference Cancellation Device and Its Debugging Method
  • Radio Frequency Adaptive Interference Cancellation Device and Its Debugging Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0034] The radio frequency adaptive interference cancellation device described in the present invention is as follows: figure 1 As shown, including but not limited to vector modulation circuit 1, feedback control circuit 2 and synthesis and feedback circuit 3; wherein, vector modulation circuit 1 includes but not limited to: quadrature power divider 11, quadrature road directional coupler 12, positive AC circuit ESC attenuator 14, non-phase circuit directional coupler 13, non-phase circuit ESC attenuator 15 and synthesizer A16, are used to realize the amplitude and phase adjustment of the reference signal; the output terminal of directional coupler A and the quadrature power divider The input end of the quadrature power divider is...

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 provides a radio-frequency adaptive interference cancellation device, and the device comprises a vector modulation circuit, a feedback control circuit, and a synthesis and feedback circuit. An output end of a directional coupler A is electrically connected with the input end of the vector modulation circuit. The directional coupler A transmits a reference signal to a vector modulator, and the output end of the vector modulator is electrically connected with the input end of the feedback circuit. The output end of the feedback circuit is electrically connected with the input end of the feedback control circuit. The vector modulator is electrically connected with a feedback controller, and the output end of a transmitter is electrically connected with the input end of the directional coupler A. The output end of the feedback circuit is electrically connected with the input end of a receiver. Aiming at ironing out the defects in the prior art, the invention provides the radio-frequency adaptive interference cancellation device and a debugging method therefor, so as to achieve the zero-drift precise inhibition of a multiplier in the radio-frequency adaptive interference cancellation device and the precise matching of time delay.

Description

technical field [0001] The invention belongs to the technical field of circuit design and equipment level electromagnetic compatibility, and in particular relates to a radio frequency interference cancellation device and a debugging method thereof. Background technique [0002] In places with dense antennas, when multiple high-power transmitting devices and high-sensitivity receiving devices work at the same time, co-site radiation interference will occur. The traditional electromagnetic interference control strategy is a passive interference suppression method, which mainly avoids electromagnetic interference through transmission channel suppression, space separation, frequency division, and time separation. Traditional methods to solve the above-mentioned co-location radiation interference mainly include management and control measures such as widening the antenna spacing and frequency division and time division. In the case of limited space, the effect of increasing the ...

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): H04B1/10
CPCH04B1/10H04B1/1036
Inventor 何方敏李毅孟进葛松虎唐健王青
Owner NAVAL UNIV OF ENG PLA
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