Title :
Angle-of-arrival measurement system with high-frame rate CMOS camera
Author :
Liu, Peng ; Wu, Xueying
Author_Institution :
Grad. Sch. of Global Inf. & Telecommun. Studies, Waseda Univ., Tokyo, Japan
Abstract :
The frequency spectrum of angle-of-arrival(AOA) fluctuations of laser propagating through atmospheric turbulence is important for the tracking subsystem using in free space optical(FSO) communication system. We present the high frequency spectrum feather of the AOA measuring with high frame rate digital camera. The high frame rate complementary metal oxide semiconductor(CMOS) camera can achieve 3000 frames per second. Therefore it can evaluate the high frequency spectrum of AOA. The sequence of the images and AOA time series for the horizontal and vertical direction are shown in the paper. The system structure and theoretical analysis are also summarized here.
Keywords :
CMOS image sensors; cameras; direction-of-arrival estimation; measurement by laser beam; measurement systems; AOA measurement system; FSO communication system; angle-of-arrival measurement system; atmospheric turbulence; complementary metal oxide semiconductor camera; free space optical communication system; high frame rate digital camera; high frequency spectrum feather; high-frame rate CMOS Camera; laser propagating; Adaptive optics; Atmospheric waves; Cameras; Measurement by laser beam; Optical imaging; Optical receivers; Pixel;
Conference_Titel :
Imaging Systems and Techniques (IST), 2011 IEEE International Conference on
Conference_Location :
Penang
Print_ISBN :
978-1-61284-894-5
DOI :
10.1109/IST.2011.5962176
