Queue pace uniformity evaluation method based on sound signals

A technology of sound signal and evaluation method, which is applied in the direction of pattern recognition in signal, instrument, character and pattern recognition, etc., which can solve the problems of high difficulty, time cost and high resource cost, so as to increase scientificity and interest, and avoid evaluation The effect of inaccurate results

Inactive Publication Date: 2017-03-22
TIANJIN UNIV
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Problems solved by technology

[0004] The time cost and resource cost required for the develop

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  • Queue pace uniformity evaluation method based on sound signals
  • Queue pace uniformity evaluation method based on sound signals
  • Queue pace uniformity evaluation method based on sound signals

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Embodiment Construction

[0050] Obviously, the sound of footsteps in a neat queue is also neat, concentrated, and rhythmic, and the time when the feet land and hang in the air can be clearly distinguished. For queues with relatively low orderliness, the sound of footsteps during the march is messy, scattered, and low in rhythm, and the time when the feet land is scattered and irregular. Therefore, through further analysis and comparison, the orderliness of the queue footsteps can be clearly distinguished.

[0051] This program will consist of the following steps: sound collection and noise reduction, step extraction and regularity analysis.

[0052] 1. Sound collection and noise reduction

[0053] The premise of analyzing the sound of queue footsteps is to obtain clear and pure footstep sound signals. First of all, from the perspective of hardware, a pickup with high directivity is used, and the placement angle and position of the pickup are scientifically selected according to the propagation chara...

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Abstract

The present invention provides a brand new digital and automatic evaluation mode for evaluating the uniformity of the troop review queues by analyzing and processing the footstep sound signals of the troop review queues to obtain the uniformity of the queue paces. The technical scheme adopted by the present invention is that the queue pace uniformity evaluation method based on the sound signals comprises 1) a sound acquisition and noise reduction step; 2) a pace extraction step of extracting the pace coordinates to determine the concrete position of each pace in the sound signals; 3) a pace uniformity analysis step characterized in that an S curve of the ideal standard uniform pace sound signals is constructed, the correlation analysis is carried out on the S curve and an accumulated energy curve of the actual sound signals, the larger is a correlation coefficient, the more similar are the actual footstep signals and the standard uniform footstep sound signals, namely, the actual footstep signals are more uniform. The queue pace uniformity evaluation method based on the sound signals of the present invention is mainly applied to the analysis and processing of the footstep sound signals.

Description

technical field [0001] The invention analyzes and processes the sound signal of the footsteps of the military parade queue to evaluate the uniformity of the steps of the military parade queue, thereby making corresponding judgments on the consistency of the queue actions. Make the standards and results of queue training and queue review more intuitive and scientific. Specifically, it involves an evaluation method for queue pace uniformity based on sound signals. Background technique [0002] Queue training, whether in military training in colleges or in army training, is an important way to exercise organizational discipline and hone the quality of will, and it is a team training method that is generally accepted in our country. The neatness of the queue pace is the concentrated expression of the queue training effect. At present, there is no scientific and effective way to evaluate the orderly pace of the queue. Especially for the evaluation of the effect of parade parad...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/04G06F2218/08G06F2218/12
Inventor 赵毅强李杰辛睿山刘沈丰薛文佳
Owner TIANJIN UNIV
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