Method for carrying out time-sharing group frequency point interference on multiple target signals

A technology of interference signal and target signal, applied in the field of multi-frequency point grouping interference multi-target signal, can solve the problem of inability to allocate enough interference energy, and achieve the effect of reducing the envelope amplitude and improving the utilization rate

Active Publication Date: 2014-12-17
10TH RES INST OF CETC
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The task of the present invention is to solve the problem that when the wireless networking equipment or system interferes, the number of target signals to be interfered at the same time is large, and when the interference power is limited, it is impossible to allocate sufficient interference energy to each target signal frequency at the same time. Jamming method that instantaneously jams all target signal frequencies

Method used

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  • Method for carrying out time-sharing group frequency point interference on multiple target signals
  • Method for carrying out time-sharing group frequency point interference on multiple target signals
  • Method for carrying out time-sharing group frequency point interference on multiple target signals

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Embodiment 1

[0082] Interfering with multiple GSM / CDMA2000 mobile communication network cells using periodic pulse interference signals with a duty cycle less than 1. On the premise that the number and frequency of the target signal are known, the grouping configuration unit in the interference device is used to calculate and generate the time-sharing grouping scheme of the interference signal. According to the scheme, the interference excitation unit generates a periodic pulse interference signal with a duty cycle less than 1. GSM / CDMA2000 / WCDMA mobile communication network cells interfere, the total number of effective interference signals is greater than the number of instantaneous interference signals, the duty ratio of effective interference is 1:2 and 1:3, and the duration period is 1-10ms. If the number of interference signals is N, the target signals whose number is less than or equal to 3N can be interfered.

Embodiment 2

[0084] refer to image 3 . The number of target available frequency points is 30 (equal interval f 1 , f 2 ,..., f 30 ), at the same time, the number of target signal frequency points to be interfered is 12 as an example, and the duty ratio required for interference is 1:3, then the 12 frequency points are first divided into 3 groups, with 4 in each group. When grouping, according to the pros and cons of the envelope optimization results in the order of "equal interval → equal interval + 1 → two equal intervals → other".

[0085] refer to Figure 4 . The iterative operation of the group configuration unit performs initial phase optimization on the possible combinations of each group of frequency points, and obtains the initial phase values ​​corresponding to the optimal envelope of all frequency point combinations (that is, the envelope amplitude tends to be the smallest), and establishes a data table. Datasheet format see Figure 4 , where f 2 ~ f 4 with f 1 The frequ...

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Abstract

The invention provides a method for carrying out time-sharing group frequency point interference on multiple target signals, aiming at providing an interference method which does not need to instantly interfere with all target signal frequencies. The technical scheme of the invention is as follows: the method comprises the following steps of: firstly, dividing target signals into m groups and the number of instantly interfered signals to be N; inputting information of targets to be interfered to a grouping configuration unit through an interference equipment master control unit, calculating multi-frequency-point interference signals to generate multiple groups of time-sharing and grouping periodic interference signals, carrying out initial-phase optimizing on possible combination of each group of frequency points by computer iterative operation program software, calculating and adjusting the initial phase with minimum envelope amplitude of each frequency point of each group of signals, establishing an initial-phase value data sheet in the grouping configuration unit, carrying out value assignment on the initial phase of each interference signal in each group by the grouping configuration unit by means of a lookup manner, outputting the initial phase subjected to value assignment to an interference exciting unit, carrying out power amplification on the output initial phase by a power amplifier, then outputting the initial phase subjected to power amplification to an antenna to be transmitted, and carrying out multi-frequency-point interference alternately and circularly on networking communication equipment.

Description

technical field [0001] The invention relates to an interference method applicable to wireless networking equipment such as GSM / CDMA2000 / WCDMA. More specifically, it relates to a method for grouping multiple frequency points to interfere with multiple target signals. Background technique [0002] In network-centric confrontation, each node needs to communicate with multiple other nodes, and effective countermeasures against a single node or multiple nodes in the network need to interfere with multiple targets at the same time. As the electromagnetic environment becomes increasingly complex and changeable, the targets that a single interference countermeasure device or system needs to counteract increase significantly, especially when counteracting networked devices, it is necessary to interfere with more target signals at the same time. The commonly used jamming methods aimed at a single device or a single signal are no longer applicable in the new electronic environment, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04K3/00
Inventor 贾坤蒋宗明李大芳梅勇兵钟寿永侯利军邓宇
Owner 10TH RES INST OF CETC
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