Broadband multi-signal detection method, device and equipment

A detection method and wideband signal technology, applied in the field of communication, can solve problems such as low signal detection accuracy, and achieve the effects of improving detection performance, signal detection accuracy, and reducing noise

Active Publication Date: 2022-02-08
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] Embodiments of the present invention provide a broadband multi-signal detection method, device, and equipment to solve the problem of low signal detection accuracy in existing broadband multi-signal detection methods

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  • Broadband multi-signal detection method, device and equipment
  • Broadband multi-signal detection method, device and equipment
  • Broadband multi-signal detection method, device and equipment

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Embodiment Construction

[0068] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0069] Aiming at the problem of low signal detection accuracy in the existing broadband multi-signal detection methods, the present invention provides a broadband multi-signal detection method, device and equipment.

[0070] like figure 1 As shown, an embodiment of the present invention provides a broadband multi-signal detection method, including:

[0071] Step 101: Collect a wideband signal of a preset frequency band.

[0072] It should be noted that, in the embodiment of the present invention, a high-speed analog-to-digital converter (Analog-to-Digital Converter, ADC) of the RF front-end is driven by a field programmable gate array (Field Programmable Gate Array, FPGA) to collect signals of a specific frequency point and bandwidth in real t...

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Abstract

The invention provides a broadband multi-signal detection method, a broadband multi-signal detection device and broadband multi-signal detection equipment. The broadband multi-signal detection method comprises the following steps: collecting broadband signals of a preset frequency band; after windowing Fourier transform is carried out on the broadband signal, obtaining a signal power spectrum of the broadband signal through a logarithm method; preprocessing the signal power spectrum; according to the change trend of the preprocessed signal power spectrum, carrying out edge detection identification on each signal, and marking a left edge point, a right edge point and a signal overlapping point of each signal in the preprocessed signal power spectrum; correcting the left edge point and the right edge point of the signal with signal overlapping according to the signal overlapping point; and outputting a signal detection result according to a matching result of the corrected left edge point and the corrected right edge point and the preprocessed signal power spectrum. According to the scheme, the influence caused by noise, signal intensity difference and signal overlapping can be reduced, and then the signal detection performance and the signal detection accuracy are improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a broadband multi-signal detection method, device and equipment. Background technique [0002] With the vigorous development of wireless communication technology in recent years, the modulation methods, coding methods and transmission protocols of wireless broadband signals have become more diverse, so wireless air interface signals have shown more complex and diverse characteristics, which are mainly reflected in the To meet the spectrum allocation requirements and the different signal bandwidth and instantaneous characteristics of their respective protocol architectures. But what follows is the difficult problem of wireless electromagnetic space spectrum signal detection. Whether it is radio signal supervision in the civilian field, such as finding and locating illegal signals, or wireless signal electronic countermeasures in the military field, such as the reco...

Claims

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Application Information

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IPC IPC(8): H04W24/08H04B17/318
CPCH04W24/08H04B17/318Y02D30/70
Inventor 冯志勇黄赛李兆瑞张平张轶凡张奇勋尉志青
Owner BEIJING UNIV OF POSTS & TELECOMM
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