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28 April 2004 Detecting and tracking the IR beacon based on DSP and FPGA in APT system
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Proceedings Volume 5284, Wireless Communications and Networks; (2004)
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
The paper gives a scheme of the algorithm and the architecture of the information processing system of IR beacon image in the APT system. The CMOS image sensor gets the IR beacon's image in the optical antenna. The FPGA implements the IR image preprocessing and the DSP offers the possibilities of processing large high-resolution images. The wavelet transform is used in the image preprocessing, which can decompose the image in multi-scale to select the different frequency components. The IR beacon's position is detected based on gravity center, and the precision servo system finishes the tracking of the IR beacons. Thus the system can implement the acquisition, pointing, tracking and establish the FSO communication link in real time.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wei Sun, Yong Ai, and Haibo Huang "Detecting and tracking the IR beacon based on DSP and FPGA in APT system", Proc. SPIE 5284, Wireless Communications and Networks, (28 April 2004);


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