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Remote Sensing Technology and Application  2005, Vol. 20 Issue (4): 435-438    DOI: 10.11873/j.issn.1004-0323.2005.4.435
Adaptive Bandwidth Digital Control Servo System of Tracking Radar
XU Guo-qing1,2, SUN Bo1
(1.Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing100080,China;
2.Graduate School of the Chinese Academy of Sciences,Beijing100080,China)
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The servo system is one of the most important parts in the tracking radar system. It moves the radar beam to minimize the pointing error between the axial direction of radar beam and the object being tracked. A modern adaptive bandwidth digital control servo system of the tracking radar based on stepper motor is presented in this paper. The servo system controls the movement of the radar system in Cartesian system precisely by digital signal processor, which ensures that the radar system can get high closed-loop control accuracy of target tracking by its safe and steady open-loop control. By using digital control of the system, the empirical formula of target tracking and principle of fuzzy control can be combined to harmonize the system bandwidth and tracking accuracy and make the system run in optimal state, according to performance of angular orientation sensitivity. The servo system of tracking radar based on stepper motor is simpler and more reliable in contrast with the one based on alternating current motor or dc motor. It can find application in the mini-system which does not ask for the capacity for high speed tracking.

Key words:  Radar tracking      Digital servo system     
Received:  25 August 2004      Published:  27 October 2011
TN 959.6  
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XU Guo-qing, SUN Bo. Adaptive Bandwidth Digital Control Servo System of Tracking Radar. Remote Sensing Technology and Application, 2005, 20(4): 435-438.

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