tailieunhanh - Báo cáo hóa học: "Research Article Target Localization by Resolving the Time Synchronization Problem in Bistatic Radar Systems"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Target Localization by Resolving the Time Synchronization Problem in Bistatic Radar Systems | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 426589 17 pages doi 2009 426589 Research Article Target Localization by Resolving the Time Synchronization Problem in Bistatic Radar Systems Using Space Fast-Time Adaptive Processor D. Madurasinghe and A. P. Shaw Electronic Warfare and Radar Division Defence Science and Technology Organisation P. O. Box 1600 Edinburgh SA 5111 Australia Correspondence should be addressed to D. Madurasinghe Received 30 September 2008 Accepted 26 January 2009 Recommended by Magnus Jansson The proposed technique allows the radar receiver to accurately estimate the range of a large number of targets using a transmitter of opportunity as long as the location of the transmitter is known. The technique does not depend on the use of communication satellites or GPS systems instead it relies on the availability of the direct transmit copy of the signal from the transmitter and the reflected paths off the various targets. An array-based space-fast time adaptive processor is implemented in order to estimate the path difference between the direct signal and the delayed signal which bounces off the target. This procedure allows us to estimate the target distance as well as bearing. Copyright 2009 D. Madurasinghe and A. P. Shaw. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction Bistatic radar systems are gaining more and more interest over the past two decades due to the freedom and flexibility it offers in deploying transmitters and receivers. Other advantages include the ability to use inexpensive receive modules the use of continuous wave signals the use of transmitters of opportunity lower maintenance cost operation without frequency clearance if using third party .