A New Design of Laser Pulse Receiver in the Automatic Control System

Abstract:

The existing problem of current laser pulse receiving system is that the laser pulses width is too narrow to be directly collected. And the consistency of the four signals acquisition is very strict. To deal with these problems, a new design of laser pulse receiver will be introduced in this article. This laser pulse receiving system includes the following structures: new high-speed laser pulse receiving hardware based on CPLD and Four-Quadrant Detectors, new peak-hold circuit of laser pulse, high-speed parallel ADC system, and processing data with fast interpolation algorithm in a Floating-Point DSP. Through the new design of high-speed parallel ADC system, the receiving system is able to simultaneously complete the timing of four high-speed laser pulse signals acquisition and the storing of data. The new construction of high-speed parallel acquisition is a core module in this design. And a new flow how to the DSP handle the data with fast interpolation algorithm will also be introduced in this article.

• Periodical: Applied Mechanics and Materials (Volumes 496-500)
• Pages: 1434-1437
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.496-500.1434
• Online since: January 2014
• Authors: Ling Wang*, Bo Mo, Ke Gao
• Keywords: Fast Interpolation Method, High-Speed Parallel Acquisition, Laser-Guided, Peak Holding, System Design, Very Narrow Pulses

References

[1] Hu Xian-long, Wen Dong-shan and Feng Qi: A Peak Hold Circuit for Narrow Pulse. Nuclear Electronics & Detection, Vol. 29-1 (2009), p.42.

[2] Chen Yong, Zhu Tian-rui and Li Rui: Design and realization of the angle-measurement algorithm of the four-quadrant detector based on the interpolation algorithm. Infrared and Laser Engineering, Vol. 40-3(2011), p.544.

[3] Wei Wen-jian, Qin Shi-qiao and Zhan De-jun: Research on Laser Encoding in Laser Semi-active Homing Guidance. LASER & INFRARED, Vol. 38-12(2008), p.1199.

[4] Si, Dong-shen, Li Zeng-zhi and Wang Xiao-xu: An Intelligent Tracking Algorithm Using Four-Quadrant Detector. JOURNAL OF XIAN JIAOTONG UNIVERSITY, Vol. 46-4(2012), p.13.

[5] Liu Zhi-guo, Wang Shi-cheng Zhang Jin-sheng and Wang Chen: The Reserch of Laser for Terminal Guidance of Ballistic Missile. JOURNAL OF MISSILES AND GUIDANCE, Vol. 25-1(2005), p.302.

[6] Information on the Datasheet of OPA615 for wide-bandwidth DC restoration circuit, (2005).