Chinese civil aviation air traffic control speech recognition method and system

A technology of air traffic control and voice recognition, which is applied in traffic control systems, voice recognition, aircraft traffic control, etc., can solve the problems that the recognition accuracy needs to be improved, and achieve the effect of high recognition accuracy

Pending Publication Date: 2021-07-23
XIAMEN UNIV
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Problems solved by technology

[0003] The existing speech recognition technology used in the field of speech recognition for traffic control in Chinese civil aviation is mainly based on the "CLDNN" neural network based on deep lear

Method used

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  • Chinese civil aviation air traffic control speech recognition method and system
  • Chinese civil aviation air traffic control speech recognition method and system
  • Chinese civil aviation air traffic control speech recognition method and system

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Embodiment 1

[0043] see figure 1 , the present embodiment provides a method for voice recognition of traffic control in Chinese civil aviation, the method comprising the following steps:

[0044] Step 101: Acquiring voice feature data, which is time-series feature information extracted based on the voice signal;

[0045] Step 102: Input the speech feature data into the trained acoustic model to obtain a recognition result, the recognition result represents the Chinese term for air traffic control corresponding to the speech signal; the acoustic model includes: sequentially connected TRM modules, BiGRU module, fully connected layer FC and CTC module, the TRM module includes sequentially connected multi-head self-attention layer, the first residual connection and layer normalization layer, feed-forward layer and the second residual connection and layer normalization layer, so The BiGRU module includes a two-way gated recurrent unit network, the CTC module includes a connection time-series c...

Embodiment 2

[0080] see Figure 9 , the present embodiment provides a Chinese civil aviation traffic control voice recognition system, the system includes:

[0081]The voice feature data acquisition module 901 is used to acquire the voice feature data, the voice feature data is time-series feature information extracted based on the voice signal;

[0082] Speech recognition module 902, is used for inputting described speech feature data into the acoustic model through training, obtains recognition result, and described recognition result represents the air traffic control Chinese term text corresponding to described speech signal; Described acoustic model comprises: The TRM module, BiGRU module, fully connected layer FC and CTC module, the TRM module includes sequentially connected multi-head self-attention layer, the first residual connection and layer normalization layer, feed-forward layer and the second residual connection and layer In the standardization layer, the BiGRU module includ...

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Abstract

The invention discloses a Chinese civil aviation air traffic control speech recognition method and system. The method comprises the following steps: acquiring voice feature data, wherein the voice feature data is time sequence feature information extracted based on a voice signal; and inputting the voice feature data into a trained acoustic model to obtain a recognition result which represents air traffic control Chinese term characters corresponding to the voice signal; wherein the acoustic model comprises a TRM module, a BiGRU module, a full connection layer and a CTC module which are connected in sequence, the TRM module comprises a multi-head self-attention layer, a first residual connection and layer standardization layer, a feed-forward layer and a second residual connection and layer standardization layer which are connected in sequence, the BiGRU module comprises a bidirectional gating circulation unit network, the CTC module comprises a connection time sequence classification layer, and the acoustic model is obtained by training an air traffic control instruction term voice sample with a Chinese character label. The method has the advantage of high recognition accuracy.

Description

technical field [0001] The invention relates to the technical field of voice recognition, in particular to a voice recognition method and system for traffic control in Chinese civil aviation. Background technique [0002] Air traffic control mainly conducts command and dispatch of aircraft taxiing on the ground and flight routes, which is an important guarantee for the safety and efficiency of air traffic, and it is extremely dependent on air traffic control personnel. The land-to-air conversation between air traffic controllers and crew is closely related to flight safety, so it is necessary to convert the land-to-air conversation into a text record and archive it. [0003] The existing speech recognition technology used in the field of speech recognition for traffic control in Chinese civil aviation is mainly based on the "CLDNN" neural network based on deep learning, which consists of multi-layer CNN, multi-layer LSTM, and multi-layer fully connected neural network. Howev...

Claims

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Application Information

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IPC IPC(8): G10L15/02G10L15/26G10L15/16G10L15/06G10L25/24G08G5/00G06N3/04G06N3/08
CPCG10L15/02G10L15/16G10L15/063G10L25/24G08G5/0095G06N3/084G10L2015/0631G06N3/044G06N3/045
Inventor 罗林开俞涵张松飞彭洪黄俊祥江居旺
Owner XIAMEN UNIV
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