Method for fast detecting jamming effects of wireless signal jammer
A wireless signal and shielding effect technology, applied in the field of efficient, fast and accurate detection of the shielding effect of signal jammers, can solve the problems of heavy workload, time-consuming and low efficiency, and achieve the effect of improving work efficiency
Inactive Publication Date: 2017-12-01
TIANJIN DEVISER ELECTRIC INSTR
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Not only the workload is heavy, but also very time-consuming and inefficient
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[0022] Such as Figure 1-2 The method for quickly detecting the shielding effect of wireless signals is shown, and the main hardware structure used to implement the method is as follows figure 1 As shown, it includes: an omnidirectional antenna, a radio frequency signal receiving module, a data processing module, and a human-computer interaction module.
[0023] The operation flow of the method of the present invention is shown in figure 2 , Including the following steps:
[0024] Step ①: When the signal shield is not turned on in the test area, the data processing module sends the spectrum command in each channel bandwidth before the test shielding to the RF signal receiving module in turn, determines the measurement time as T=400ms, and determines the spectrum trace in a channel to analyze The number of line data is N=301, the channel start frequency is f1, and the cutoff frequency is f2. Then the data processing module obtains the N signal value data Db0, Db1,..., Db(N-1) on t...
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The invention discloses a method for fast detecting the jamming effects of a wireless signal jammer. The method includes the following steps: when a wireless signal jammer is turned off, an antenna and a radio frequency receiving module acquiring the signal intensity and the frequency spectrum trajectory of the down link of respective frequency bands of a communication base station with a test region, and saving the signal intensity and the frequency spectrum trajectory data to a storage device; turning on a wireless signal jammer, and acquiring the signal intensity and frequency spectrum trajectory of corresponding frequency bands for a second time and saving the signal intensity and frequency spectrum trajectory data to the storage device; obtaining the differences of frequency sampling points of the frequency spectrum trajectory in circumstances when a signal is jammed and prior to the jamming of the signal, and comparing respective differences to obtain the difference of the smallest different point, and determining the jamming effects and safety level of the site by comparing the smallest difference and reference points. The method herein can also automatically switch between scanning all communication channels, outputting measurement results, and displaying data graphics.The method greatly increases the efficiency of detecting the effects of jamming signals of the signal jammer. The method provides an effective tool for installing and detecting the signal jammer and eliminating malfunction.
Description
Technical field [0001] The invention relates to the technical field of radio detection. In secret venues, wireless jamming devices are usually set up to block normal communications on the public mobile communication network and perform confidentiality work for meetings at the venue. The invention relates to a method for quickly, efficiently and accurately detecting the shielding effect of a signal shielding device. Background technique [0002] In secret venues, wireless jamming devices are usually set up to block normal communications on the public mobile communication network during a specific period of time in the area. However, the use of this confidential technology must be controlled within a reasonable scale, not only to ensure effective interference of mobile phone signals in the venue, but also to minimize interference to mobile terminals outside the venue. In order to standardize and guide the installation and use of mobile communication jammers, a spectrum analyzer i...
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IPC IPC(8): H04B17/318H04K3/00
CPCH04B17/318H04K3/62
Inventor 邵建辉寇立冬王仁平倪志伟
Owner TIANJIN DEVISER ELECTRIC INSTR