In this paper, we research the laser transmission characteristics in the space channel environment and on which basis,
research the overall composition of coherent space laser communication systems and focus on its key technologies,
including high-speed outer optical modulation technology, optical phase locking technology, photo mixing technology,
optical heterodyne detection and optical signal processing technology, Finally, the article looks for prospects on the
development of coherent space laser communication.
Proc. SPIE. 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
KEYWORDS: Digital signal processing, Veins, Detection and tracking algorithms, Image segmentation, Image processing, Pattern recognition, Field programmable gate arrays, Control systems, Bone, CCD image sensors
In this paper, according to human bone, muscle tissue characteristics, the study of human vein pattern recognition
technology to the basic principles on the basis of which, based on DSP technology vein pattern recognition system, the
basic component, focusing on images of the collection, processing and Vein pattern recognition algorithm discussed, the
final article based on the DSP vein pattern recognition technology prospect.