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Method and device for eliminating crossed polarization jamming

A technology of main polarization and vertical polarization, which is applied to the shaping network, electrical components, transmission system, etc.

Active Publication Date: 2014-11-05
安徽省菲特科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to eliminate this cross-polarization interference, various cross-polarization compensation XPIC circuits are known in the art, but in applications, some can only correct large frequency offsets, and the correction error is large, and some can only be used in the same modulation mode. Correction under the current multi-mode wireless communication system cannot play a role

Method used

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  • Method and device for eliminating crossed polarization jamming
  • Method and device for eliminating crossed polarization jamming
  • Method and device for eliminating crossed polarization jamming

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Embodiment Construction

[0061] Such as figure 1 As shown, in this embodiment, the polarized oscillator of the receiving antenna H receives the composite signal from the horizontal polarization signal of the polarization of the transmission antenna H and the vertical polarization signal of the polarization of the transmission antenna V to form the main polarization direction The main channel receives the signal; the polarized oscillator of the receiving antenna V receives the vertically polarized signal from the polarization of the transmitting antenna V to form a slave channel receiving signal in the polarization direction; the main channel receiving signal and the slave channel receiving signal are respectively passed through The ADC analog-to-digital conversion generates a digital signal, and performs baseband digital demodulation on the digital signal to form a horizontally polarized signal r_H and a vertically polarized signal r_V. The method for eliminating cross-polarized interference is as foll...

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Abstract

The invention discloses a method and a device for eliminating the crossed polarization jamming in a wireless communication system. According to the invention, by automatically detecting an error value between a signal subjected to elimination of the crossed polarization and an ideal signal, a phase deviation value of both receiving and transmitting ends of a master polarization direction signal and a relative phase deviation value of the master polarization direction signal and a slave polarization direction signal are adaptively estimated and a coefficient of a filter is updated; the slave polarization direction signal is regulated by utilizing the relative phase deviation value of the master polarization direction signal and the slave polarization direction signal and the coefficient of the filter and the master polarization direction signal is regulated by utilizing the phase deviation value of both the receiving and transmitting ends of the master polarization direction signal and the coefficient of the filter; then aiming at the regulated master polarization direction signal and the regulated slave polarization direction signal, the signal subjected to elimination of the crossed polarization is updated; and the elimination of the crossed polarization is completed until the error value meets the error requirement set by technical indexes.

Description

technical field [0001] The present invention relates to the technical field of eliminating interference between cross-polarized waves, and in particular to a method and device for eliminating cross-polarized interference to different degrees of cross-polarized interference. Background technique [0002] Wireless communication devices use the same channel transmission mode to send different pieces of information on two polarized signals with the same frequency and different phases. These two polarized signals refer to vertically polarized signals and horizontally polarized signals, sometimes called V polarized signal and H polarized signal. Interference may occur between the V-polarized signal and the H-polarized signal, which is called orthogonal cross-polarized interference or cross-polarized interference. In order to eliminate this cross-polarization interference, various cross-polarization compensation XPIC circuits are known in the art, but in applications, some can onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04B1/10
Inventor 吴端陶洪赵科彭静袁振英
Owner 安徽省菲特科技股份有限公司
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