Communication anti-interference detection method and device
A detection method and interference detection technology, applied in the 5G field, can solve problems such as continuous signal interference
Pending Publication Date: 2021-01-05
ZTE CORP
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[0004] In order to solve the problem of continuous signal interference caused by the coexistence of the two systems in the prior art, an embodiment of the present invention provides a communication anti-jamming detection method and device. According to an embodiment of the present invention, a communication anti-jamming Detection method, figure 1 is a main flow diagram according to an embodiment of the present invention, such as figure 1 shown, including:
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[0059] The embodiment of the present invention provides a communication anti-interference detection method, which is characterized in that it includes: performing interference detection after radio frequency signal demodulation, inverse Fourier transform, convolution and entering into a logic control switch, passing the interference signal through The anti-jamming circuit filters out and modulates the useful signal into a radio frequency signal; if there is no interference signal, the radio frequency signal is processed by the radio frequency circuit.
[0060] According to an embodiment of the present invention, a communication anti-jamming detection method is provided, figure 2 is a schematic diagram of an anti-interference detection method according to an embodiment of the present invention, such as figure 2 As shown, the specific steps are as follows:
[0061] A100, demodulating the input radio frequency signal to obtain a demodulated signal;
[0062] B100, performing c...
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The invention provides a communication anti-interference detection method and device. The communication anti-interference detection method is mainly characterized by comprising the following steps: demodulating an input radio frequency signal to obtain a demodulated signal; performing convolution processing on the following objects to obtain a detection signal so as to detect whether an interference signal exists in the input radio frequency signal or not: a first signal and a second signal; wherein the first signal is a signal obtained after inverse Fourier transform is carried out on the demodulation signal, and the second signal is a signal obtained after phase inversion is carried out on a preset baseband signal; performing anti-interference processing on a signal with interference, performing deconvolution processing on a detection signal with interference, performing subtraction or reverse superposition on the detection signal with interference and the first signal, filtering outan interference signal, and obtaining a third signal; modulating the third signal to obtain an output radio frequency signal. therefore, interference signals can be rapidly detected, good radio frequency performance is achieved through filtering, and the defects in the prior art are overcome.
Description
technical field [0001] The present invention relates to the field of 5G, the field of communication and the field of signal detection, in particular to a detection method and device for anti-interference of communication signals. Background technique [0002] With the rapid development and maturity of the current 4G / 4G+ (fourth generation communication system), the shortage of frequency resources, the huge consumption of energy, and the optimization of the network are difficult to meet the needs of future mobile communications. Countries and institutions have focused on research and development Transfer to the future 5G communication (fifth generation communication system). Under the 5G system, the peak rate, user experience rate, spectrum efficiency and some new indicators will be greatly improved. In terms of key technologies, ultra-dense networking, massive MIMO, non-orthogonal transmission, high-band communication, C-RAN, SDN / NFV, content distribution network (CDN), etc...
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CPCH04B1/1027H04B2001/0491Y02D30/70
Inventor 蔡凌云
Owner ZTE CORP