Self-adaptive multivariate orthogonal wave trap and wave trapping method thereof

A notch filter and adaptive technology, applied in electrical components, impedance networks, etc., to suppress receiving interference signals, improve receiving performance, and improve call quality

Active Publication Date: 2020-04-17
GUANGZHOU HAIGE COMM GRP INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of suppressing and filtering interference signals in a certain frequency band in the existing filtering methods in the prior art, the present invention provides an adaptive multi-element orthogonal notch filter

Method used

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  • Self-adaptive multivariate orthogonal wave trap and wave trapping method thereof
  • Self-adaptive multivariate orthogonal wave trap and wave trapping method thereof
  • Self-adaptive multivariate orthogonal wave trap and wave trapping method thereof

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with drawings and embodiments.

[0038] This program uses the detection control unit to identify complex and changeable interference signals, and uses the simplest LC resonance reflective notch filter to achieve effective notch filtering of interference signals through the orthogonal notch method (the notch amplitude is greater than 20dB above). Therefore, without reducing the receiving quality of the receiver and ensuring that the broadband full-screen segment can be used normally, the received signal is sampled and detected and the targeted notch is realized, which can effectively identify and filter out the interference signal by more than 100 times. Change the channel bandwidth of communication, suppress unknown interference signals without system switching frequency band, and achieve the effect of improving communication quality. The specific plan is as follows:

[0039] see figure 1 , oneA k...

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Abstract

The invention relates to a self-adaptive multivariate orthogonal wave trap which comprises an input coupling unit, an orthogonal wave trap unit, an output coupling unit and a detection control unit. An antenna signal is input to the input end of the input coupling unit; the first output end of the input coupling unit is connected with the signal end of the orthogonal wave trap unit; the second output end of the input coupling unit is connected with the input end of the detection control unit, and the orthogonal wave trap unit is used for executing orthogonal wave trap on the antenna signal after receiving the control instruction output by the detection control unit and transmitting the obtained useful signal to the output coupling unit. The self-adaptive multivariate orthogonal wave trap comprises the orthogonal wave trap unit and the detection control unit, after a control instruction output by the detection control unit is received, the orthogonal wave trap unit performs orthogonal wave trap on an antenna signal and transmits an obtained useful signal to the output coupling unit, and low-loss transmission of the useful signal and reflection suppression of an interference signal are realized.

Description

technical field [0001] The invention relates to the technical field of antenna signal filtering and processing, in particular to an adaptive multi-element orthogonal notch filter and a notch method thereof. Background technique [0002] Due to the rapid development and popularization of current communication technologies, wifi, bluetooth, communication telephones, broadcasting, etc., which can be seen everywhere in people's daily life, will have strong interference (including unintentional and malicious ones) in various communications and electronic countermeasures. jamming signal), anti-jamming measures and technologies are becoming more and more important. [0003] For the current anti-interference technology, it is nothing more than increasing the field strength of the receiving signal (such as strengthening the strength of the transmitting signal or increasing the antenna gain, etc.), shielding and isolating the interference signal, and filtering the interference signal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H1/00
CPCH03H1/00Y02D30/70
Inventor 冯培桑翟杰林光华王永灿
Owner GUANGZHOU HAIGE COMM GRP INC
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