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Spectrum-Based Fast Radio Detection Method

A radio detection and spectrum technology, applied in frequency measurement devices, spectrum analysis/Fourier analysis, etc., can solve the problems of easy loss of detection information, inconvenient management, errors, etc.

Active Publication Date: 2020-12-11
上海市无线电监测站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing radio testing is limited by many factors such as complex on-site environment, harsh testing conditions, and a large number of devices to be tested in a short period of time, resulting in inconvenient on-site testing operations
Due to the need for manual testing and recording of measurement results, on-site testers need the cooperation of multiple people, which is time-consuming and labor-intensive, and it is easy to introduce manual errors and mistakes
More importantly, the paper-based test results are not easy to archive, and the test information is easy to lose, potentially causing inconvenience in management and bringing hidden dangers to the radio test security work

Method used

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  • Spectrum-Based Fast Radio Detection Method
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  • Spectrum-Based Fast Radio Detection Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A spectrum-based method for fast radio detection, see figure 1 , including the following steps:

[0043] S1: Receive the raw data of multiple devices under test input by the user; the raw data includes the declared frequency point, user information, device type and nominal parameters of the device under test;

[0044] Specifically, the nominal parameters refer to: the conditions to be met by the signal to be tested agreed in the equipment declaration information, including the nominal bandwidth and signal power in addition to the emission frequency index. During a test, the user can input data of multiple devices under test at the same time. For example, the user input data is shown in Table 1:

[0045] Table 1:

[0046] serial number Declaration frequency (MHz) Equipment type Nominal Bandwidth (kHz) …… 1 409.7500 Walkie Talkie 12.5 2 160.3875 Walkie Talkie 12.5 3 160.5750 IEM 12.5 ……

[0047] Table 1 in...

Embodiment 2

[0058] Embodiment 2 On the basis of Embodiment 1, the following scanning content is added:

[0059] 1. Determine the scanning bandwidth.

[0060] said nominal parameters include nominal bandwidth;

[0061] The determination of the scanning bandwidth according to the set of declared frequency points specifically includes:

[0062] Read the nominal bandwidth of the device under test;

[0063] Define the start frequency and cutoff frequency of the sweep bandwidth;

[0064] The start frequency is the minimum value of the declared frequency points in the set of declared frequency points minus 2 times the nominal bandwidth; the cut-off frequency is the maximum value of the declared frequency points in the set of declared frequency points plus 2 times Nominal bandwidth.

[0065] Specifically, for example, Table 2 sets multiple Hand Held Mic at the same time, and the nominal bandwidth of the same device under test is the same.

[0066] Table 2:

[0067]

[0068]

[0069] I...

Embodiment 3

[0082] Embodiment 3 On the basis of the above embodiments, the content of the precise signal index test is added.

[0083] Further, the parameter index includes transmission frequency, occupied bandwidth OBW and transmission power.

[0084] Specifically, when using a spectrum analyzer to measure OBW, since the signal power measured by the spectrum analyzer is in dBm, it is necessary to convert and integrate the measured power data point by point to calculate the power in the corresponding frequency range. For example: Assuming that the distribution of signal power along the frequency axis in the frequency band to be measured is P(f), then over the entire sweep width, the power P(f) is integrated along the frequency axis to obtain the total over the entire sweep width Power P ∑ , (the total power is the area under the P(f) curve); then find the two frequency points where the total power is 0.5% and 99.5%; then the width between these two frequency points is the area where 99% ...

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Abstract

The invention provides a rapid radio detection method based on a frequency spectrum. The method comprises the following steps of receiving the original data of multiple devices to be detected input bya user; constructing a reporting frequency point set; selecting the reporting frequency point set according to user information and a device type which the device to be detected belongs to, and determining a scanning bandwidth according to the reporting frequency point set; acquiring a signal to be detected, using a spectrum analyzer to scan the signal to be detected according to a scanning bandwidth, and obtaining the complete spectrum and the reporting frequency of the device to be detected corresponding to the signal to be detected; and setting the spectrum analyzer according to the reporting frequency and the nominal parameter of the device to be detected, and using the set spectrum analyzer to test the parameter index of the signal to be detected. By using the method, the automatic test function of a radio device can be realized, and the method is especially suitable for a radio detection task in a major event site.

Description

technical field [0001] The invention belongs to the technical field of radio detection, in particular to a spectrum-based fast radio detection method. Background technique [0002] Existing radio testing is limited by many factors such as complex on-site environment, harsh testing conditions, and testing a large number of devices in a short period of time, resulting in inconvenient on-site testing operations. Due to the need for on-site testers to perform manual testing and record measurement results, it requires the cooperation of multiple people, which is time-consuming and labor-intensive, and it is easy to introduce manual errors and mistakes. More importantly, paper-based test results are not easy to archive, and test information is easily lost, potentially causing inconvenience in management and bringing hidden dangers to radio test security work. [0003] For this reason, the applicant provides a kind of fast radio detection method based on frequency spectrum, compri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R23/16G01R23/02
CPCG01R23/02G01R23/16
Inventor 范志平杨雪瑾徐弘良范昱洲
Owner 上海市无线电监测站
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