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In-band same-frequency self-interference cancellation method, device, and computer-readable storage medium

A self-interference cancellation, in-band co-frequency technology, applied in broadcast receiving circuits, transmission systems, electrical components, etc., can solve problems such as self-interference, and achieve the effect of solving self-interference and improving transmission quality

Active Publication Date: 2019-06-28
SHENZHEN SIKAIWEI ELECTRONICS CO LTD
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Problems solved by technology

[0005] The main purpose of the present invention is to provide an in-band same-frequency self-interference elimination method, device and computer-readable storage medium, aiming to solve the problem of self-interference when multiple broadcast signals co-occur and broadcast simultaneously in the same frequency band

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  • In-band same-frequency self-interference cancellation method, device, and computer-readable storage medium
  • In-band same-frequency self-interference cancellation method, device, and computer-readable storage medium
  • In-band same-frequency self-interference cancellation method, device, and computer-readable storage medium

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Embodiment Construction

[0037] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The main solution of the embodiment of the present invention is to analyze the frequency domain response of the superimposed signal and the superimposed signal, and respectively obtain the frequency domain response of the superimposed signal and the frequency domain response of the superimposed signal; wherein, the superimposed signal, the superimposed signal The superimposed signals are all baseband time domain signals; identifying the frequency domain overlapping area between the frequency domain response of the superimposed signal and the frequency domain response of the superimposed signal; according to the frequency domain response of the superimposed signal, the Performing pre-distortion processing on the frequency domain response of the superimposed signal in the domain overlapping area to generate a new ...

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Abstract

Disclosed is a method for in-band co-frequency self-interference cancellation. The method comprises the following steps: performing frequency response analysis with respect to a superimposed signal and a superimposing signal to produce respectively a superimposed signal frequency-domain response and a superimposed signal frequency-domain response, where both the superimposed signal and the superimposing signal are baseband time-domain signals; identifying a frequency-domain overlap area of the superimposed signal frequency-domain response and the superimposing signal frequency-domain response; performing, on the basis of the superimposing signal frequency-domain response, predistortion processing with respect to a frequency domain of the superimposing signal located in the frequency-domain overlap area so as to generate a new superimposing signal; and, coupling and superimposing the superimposed signal with the newly generated superimposing signal to generate a new baseband signal. Also disclosed are a device for in-band co-frequency self-interference cancellation and a computer-readable storage medium. The present invention solves the problem of self-interference produced when multiple broadcast signals are co-generated and simultaneously broadcasted in a same frequency band, thus improving the transmission quality of the broadcast signals.

Description

technical field [0001] The present invention relates to the technical field of wireless broadcasting, in particular to an in-band same-frequency self-interference elimination method, device and computer-readable storage medium. Background technique [0002] Broadcast technology has always occupied an irreplaceable position in the field of communication with its unique advantages. With the development of broadcasting technology, especially the gradual evolution from traditional analog broadcasting to digital broadcasting, broadcasting technology will attract more and more attention from various industries due to its advantages of economy, efficiency and wide coverage. [0003] The problem of frequency resources is an unavoidable and important problem in the development of broadcasting technology. On the one hand, China’s FM digital audio broadcasting standard (CDR) adopts the method of co-existence and simultaneous broadcasting of digital and analog in the same frequency ban...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04H40/18
CPCH04B1/10H04H40/18
Inventor 朱钧尹华镜尹超
Owner SHENZHEN SIKAIWEI ELECTRONICS CO LTD
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