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Vol. 164, Issue 2, February 2014, pp. 249-255

 

Bullet

 

Research and Analysis Laser Target Optics Characteristics and Signal Recognition Processing
in Detection Screen System
 

Hanshan LI, Yanran LI

School of Electronic Information Engineering, Xi’an Technological University, Xi’an, 710021, China

E-mail: lihanshan269@163.com

 

Received: 20 November 2013 /Accepted: 28 January 2014 /Published: 28 February 2014

Digital Sensors and Sensor Sysstems

 

Abstract: In order to improve the measurement accuracy of the laser measurement distance system, this paper study the laser target optics characteristics based on the laser detection principle in the laser measurement distance system. A calculation model of laser reflective echo signal is put forward by analyzing the influence factors on the detector output value, and discuss the relationship between the distance from the detector to the target, the laser wavelength, the Transmission power of laser and the detector output power, the radiation intensity, and use the Fisher identification and modulus maxima method based on wavelet analysis to distinguish and identify the received echo signals. By the theoretical calculation and experimentation, the result shows the laser target optics characteristics are consistent with the calculation method of radiation. The real reflective signal can be identified by using wavelet transform, and the numerical value of the distance between the target and the detector is larger, the numerical value of echo signal will be smaller.

 

Keywords: Target optics characteristics, Detection distance, Signal recognition processing, Detection screen system.

 

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