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Model classification method based on frequency modulation continuous wave radar

A frequency modulation continuous wave and vehicle classification technology, which is applied in the field of vehicle detection in intelligent transportation, can solve problems such as complex operation, and achieve the effect of simple calculation and convenient operation

Inactive Publication Date: 2015-03-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

This method is only for single-frequency continuous wave, not suitable for FM continuous wave radar installed on the front side, and the operation is more complicated

Method used

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  • Model classification method based on frequency modulation continuous wave radar
  • Model classification method based on frequency modulation continuous wave radar
  • Model classification method based on frequency modulation continuous wave radar

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Embodiment Construction

[0031] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown in the flow chart of the vehicle classification method based on frequency-modulated continuous wave radar according to a specific embodiment of the present invention, the constant false alarm rate processing is first performed to estimate the power spectrum of noise and interference and set the threshold, and then the power spectrum of the vehicle is peak statistics. After the vehicle's power spectrum peaks have accumulated to a certain number, histogram statistics are performed on the results. Finally, according to the results of the histogram statistics, the power spectrum peak energy segmentation threshold corresponding to different vehicle types is adaptively obtained, and finally the purpose of traffic statistics and vehicle type classification is achieved.

[0033] Such as figure 2 According to a sc...

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Abstract

The invention discloses a model classification method based on a frequency modulation continuous wave radar, and belongs to the field of vehicle detection of intelligent traffic. According to the invention, first of all, constant false alarm rate processing is carried out, the power spectrums of noise and interference are estimated, thresholds are arranged, and then the power spectrum peak values of vehicles are counted; next, histogram statistics is performed on the counted power spectrum peak values of the vehicles; and finally, according to results of the histogram statistics, power spectrum peak value energy segmentation thresholds corresponding to different models are obtained, and the types of the vehicles are determined based on this. The method provided by the invention has the advantage that the different models can be classified by use of the frequency modulation continuous wave radar.

Description

technical field [0001] The invention relates to a vehicle classification method based on frequency modulation continuous wave radar, which belongs to the vehicle detection field of intelligent transportation. Background technique [0002] The intelligent transportation system is the development direction of the transportation system and an important part of building a smart city. The road traffic information collection system is an important category in the intelligent transportation system. At present, the commonly used traffic information collection systems mainly include video collection, loop coil detection, radar detection and so on. Radar detection is developing at a high speed because of its high detection accuracy, strong anti-interference performance, all-weather, and easy installation. [0003] Frequency modulated continuous wave traffic radar is an important method of radar detection in intelligent transportation systems. The forward-mounted radar can accuratel...

Claims

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Application Information

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IPC IPC(8): G08G1/017
CPCG08G1/017
Inventor 夏伟杰蒋鹏飞韦继富周建江刘京王明超
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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