A Calculation Method of Radio Spectrum Signal Detection Threshold

A radio frequency spectrum and signal detection technology, applied in the direction of propagation channel monitoring, etc., can solve the problem of not being able to have both broadband energy detection and weak energy detection detection threshold dynamic update, so as to improve the weak signal detection ability, avoid excessive fluctuation, The effect of low computational overhead

Active Publication Date: 2022-01-28
国家无线电监测中心陕西监测站 +1
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Problems solved by technology

[0011] The purpose of the present invention is to provide a radio frequency spectrum signal detection threshold calculation method to solve the problem in the prior art that broadband energy detection, weak energy detection and dynamic update of the detection threshold cannot be simultaneously performed

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  • A Calculation Method of Radio Spectrum Signal Detection Threshold
  • A Calculation Method of Radio Spectrum Signal Detection Threshold
  • A Calculation Method of Radio Spectrum Signal Detection Threshold

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Embodiment Construction

[0028] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0029] See Figure 1-2 , The present invention provides a technical solution: A radio frequency spectrum signal detection threshold calculation method, the following steps:

[0030] S1, the parameter setting: setting values ​​of constants filter window width W MED Often the bandwidth segment array W SEG , The bandwidth of the sub-segments of constants W BKG The value of these three frequencies associated with the array member nodes; setting exponential smoothing filter coefficien...

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Abstract

The invention provides a method for calculating the detection threshold of radio spectrum signals. The method of the present invention performs valley removal and exponential smoothing operations on the spectrum data output by the radio frequency receiver; divides the spectrum data into spectrum segments according to frequency intervals, then divides the spectrum segments into sub-segments, calculates the maximum spectral line level in each sub-segment, and takes The minimum value of the maximum spectral line level of the sub-segment is used as the reference background level of the spectrum segment; finally, the minimum value between the spectrum segment data and the segment reference background level is taken as the signal detection threshold. The signal detection threshold calculated by the method of the present invention can adapt to various bandwidth signals and weak signal detection, the algorithm occupies less memory, and the calculation overhead is low, and is suitable for various fixed, airborne and vehicle-mounted radio monitoring systems for the calculation performance requirements of the signal detection threshold.

Description

Technical field [0001] The present invention relates to a technical field of radio spectrum monitoring, as a calculation method particularly limited radio spectrum signal detection gate. Background technique [0002] The basic workflow of radio spectrum monitoring system is monitoring the signals present in the band perform spectral scanning, detection of the spectrum, and the detection signal statistics and analysis. [0003] The basic workflow of radio spectrum monitoring system is monitoring the signals present in the band perform spectral scanning, detection of the spectrum, and the detection signal statistics and analysis. Detection threshold is based on the detected signal, when a frequency range of spectral level above the detection threshold, means that the frequency range of the signal appeared, admitted its spectrum monitoring system frequency, level and bandwidth parameters, and perform further analysis and classification. [0004] Spectrum monitoring system requires a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/30
CPCH04B17/30
Inventor 赵延安杜鸿
Owner 国家无线电监测中心陕西监测站
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