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Aircraft voiceprint recognition method and system, electronic equipment and storage medium

A voiceprint recognition, aircraft technology, applied in character and pattern recognition, computer parts, voice analysis and other directions, can solve problems such as difficulty in real-time recognition of aircraft signals

Active Publication Date: 2022-07-12
CHENGDU KAITIAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the invention provides an aircraft voiceprint recognition method, system, electronic equipment and storage medium, which solves the problem existing in the prior art that it is difficult to quickly and real-time identify aircraft signals in an outdoor unmanned environment. question

Method used

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  • Aircraft voiceprint recognition method and system, electronic equipment and storage medium
  • Aircraft voiceprint recognition method and system, electronic equipment and storage medium
  • Aircraft voiceprint recognition method and system, electronic equipment and storage medium

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Embodiment 1

[0067] The invention proposes an aircraft voiceprint recognition method suitable for embedded platforms and based on time series spectral statistical features, which can quickly and effectively detect aircraft acoustic signals in an outdoor environment. To achieve this purpose, the present invention proposes the following technical solutions: figure 1 As shown, the present invention provides an aircraft voiceprint recognition method, and its implementation method is as follows:

[0068] S1. Real-time acquisition of acoustic signals in the environment;

[0069] S2, sampling and quantizing the collected acoustic signal to obtain the time domain feature of the acoustic signal;

[0070] S3. Use FFT to convert time domain features into frequency domain features;

[0071] S4, perform three-layer identification on the frequency domain feature, obtain the aircraft sound signal, and send the instruction signal, and the implementation method is as follows:

[0072] S401. Filter high-...

Embodiment 2

[0091] like Figure 5 As shown, the present invention provides an aircraft voiceprint recognition system, the aircraft voiceprint recognition system is located in an embedded platform, including:

[0092] The acquisition module is used for real-time acquisition of acoustic signals in the environment;

[0093] The first processing module is used for sampling and quantizing the collected acoustic signal to obtain the time domain feature of the acoustic signal;

[0094] The second processing module is used to convert the time-domain features into frequency-domain features by using FFT;

[0095] The identification module is used for three-layer identification of the frequency domain features to obtain the aircraft acoustic signal and send the instruction signal.

[0096] In one of the embodiments, the sampling and quantization processing is as follows: converting the acquired continuous acoustic signal into discrete time and amplitude signals to obtain time-domain characteristic...

Embodiment 3

[0115] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, the processor executing the program to implement any The steps of the aircraft voiceprint recognition method described above.

[0116] In this embodiment, the electronic device may include: a processor, a memory, a bus, and a communication interface. The processor, the communication interface, and the memory are connected by a bus. The memory stores a computer program that can run on the processor, and the processor runs the computer. During the program, part or all of the steps of the aircraft voiceprint identification method provided in the foregoing Embodiment 1 of the present application are executed.

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Abstract

The invention provides an aircraft voiceprint recognition method and system, electronic equipment and a storage medium, and belongs to the technical field of aircraft voiceprint data processing. The method comprises the following steps: acquiring sound signals in an environment in real time; sampling and quantizing the collected sound signals to obtain time domain features of the sound signals; converting the time domain feature into a frequency domain feature by using FFT (Fast Fourier Transform); and carrying out three-layer identification on the frequency domain characteristics to obtain an aircraft sound signal, and sending an indication signal. Based on the scheme, the problem that in the prior art, airplane signals are difficult to identify quickly in real time in an outdoor unmanned environment is solved.

Description

technical field [0001] The invention belongs to the technical field of aircraft voiceprint data processing, and in particular relates to an aircraft voiceprint identification method, a system, an electronic device and a storage medium. Background technique [0002] As a common biological perception feature, voiceprint has become an effective detection method with the development of digital signal processing technology. Various types of aircraft will inevitably generate noise during operation. Using voiceprint to detect aircraft targets is an effective means of information acquisition. In the field of military applications, passive perception of enemy aircraft engine noise based on acoustic signals provides timely front-line information for the command center, which can make up for the defect that radar and remote sensing methods can only monitor near-field targets; in the civilian field, acoustic signals passively perceive and detect aircraft targets , which can provide tim...

Claims

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Application Information

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IPC IPC(8): G10L25/48G06K9/00
CPCG10L25/48G06F2218/04G06F2218/08
Inventor 张鹏黄巧平郭唯娜陈珂李宁王晓全
Owner CHENGDU KAITIAN ELECTRONICS
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