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A kind of satellite TV signal abnormal warning method

A technology for abnormal signal and satellite TV, which is applied in the field of satellite communication to prevent false alarms, improve accuracy and improve accuracy.

Active Publication Date: 2021-10-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general-purpose test equipment can only directly obtain the physical characteristics (such as power, bandwidth, etc.) of satellite uplink / downlink signals. If it is necessary to judge whether the signal has abnormal alarms, further statistical analysis is required based on the test data.

Method used

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  • A kind of satellite TV signal abnormal warning method
  • A kind of satellite TV signal abnormal warning method
  • A kind of satellite TV signal abnormal warning method

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Embodiment Construction

[0059] The technical means adopted by the present invention to achieve the intended invention purpose are further described below in conjunction with the drawings and preferred embodiments of the present invention.

[0060] Such as figure 1 As shown, one aspect of the present invention provides a satellite TV signal abnormality warning method, comprising:

[0061] Step 101, acquiring a spectrum signal in a normal state as a standard signal template;

[0062] Step 102, comparing the real-time signal with the standard signal template, and when the comparison result satisfies the alarm threshold in the preset multi-alarm template, an alarm of the corresponding category is triggered;

[0063] Step 103, display and save the alarm result.

[0064] Wherein, in step 102, the types of alarms set in the multi-alarm template include: at least one of new signal, in-band power increase, in-band power decrease, in-band power anomaly, bandwidth anomaly, and frequency offset. A correspondi...

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Abstract

The invention discloses a satellite TV signal abnormality warning method, comprising: acquiring a frequency spectrum signal in a normal state as a standard signal template; If the alarm threshold is set, the alarm of the corresponding category will be triggered; the alarm result will be displayed and saved. The invention collects the frequency spectrum of normal signals as a standard signal template, and applies the standard signal template to various alarm judgments, thereby identifying abnormal alarms simply and quickly. In order to adapt to the satellite TV signal changes caused by the natural environment, an adaptive template generation algorithm is constructed to improve the accuracy of anomaly detection; an alarm feedback method is further used to realize automatic adjustment of threshold parameters to prevent false positives and effectively eliminate missed negatives Effect.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to an abnormal alarm method for satellite TV signals. Background technique [0002] Satellite TV signals are transmitted wirelessly and remotely by broadcasting, which is more susceptible to interference than other communication methods. At the same time, satellite TV transmitting equipment may also malfunction, resulting in abnormal signals. Therefore, in the operation and maintenance management, it is necessary to conduct all-weather and full-time spectrum monitoring and analysis on the quality of signal transmission, so as to capture signal anomalies in time. [0003] The currently widely used monitoring method is to obtain the signal spectrum within the effective bandwidth of each channel through spectrum analyzers and other test equipment, which has the advantages of being more objective and standard than the traditional manual observation method and can work a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/20H04N21/488G08B21/18
CPCG08B21/18H04N7/20H04N21/4882
Inventor 何羚彭春晓龚芹金燕华陈楠阎啸刘平韩尧刘康
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA