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Of passive multi-sensor data fusion technology research

Author: ShenDongFang
Tutor: WeiPing
School: University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: Data Fusion Passive sensors Data Association Location and tracking
CLC: TN97
Type: Master's thesis
Year: 2008
Downloads: 398
Quote: 5
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Abstract


With the rapid development of military electronics and technology in modern warfare, electronic warfare role and status continue to improve, the confrontation between the radar and electronic warfare / oppose anti-struggle increasingly sharp and intense. Active Sensor active reconnaissance due to the wide application of the anti-radiation, high-tech stealth, to bring a series of new obstacles, thus demonstrating the superiority of passive detection, which has inspired a new passive detection technology and System peak. In this paper, the multi-platform data fusion simulation software system as the background, in-depth study of the system development and design ideas, as well as the system involves passive multi-sensor static data association and target location and tracking of key technologies. Its main contents are as follows:. Emitter signal characteristic parameters using passive multi-sensor reconnaissance data association algorithm simulation to compare different scenarios elliptical threshold and rectangular threshold associated with the performance of the algorithm; appear for the new system of radiation sources change and the increasing complexity of the electromagnetic signal environment, analyze the mechanism of the emitter signal generated by the fine features, the study based on the the Wavelet theory of communication radio BPSK signal code element transformation characteristics, verified by simulation radio amplification chain symbol transition the impact of the use of extracted singularity exponent reflects the different signal amplification chain analysis for the communication radio subtle characteristics useful ideas; study target only the direction of the information space associated technology, simulation compared using different spatial clustering statistic associated with performance; Lagrange relaxation algorithm based on multi-dimensional distribution of a detailed analysis of the Lagrangian relaxation algorithm implementation process and the choice of algorithm parameters, simulation analysis of the different scenarios LaGrand The Relaxation algorithm associated performance results show that the Lagrangian relaxation algorithm has better prospects for engineering applications. Space cross-line-of-sight-based positioning and target tracking technology, the use of the GDOP simulation analysis of multi-sensor target positioning accuracy and its influencing factors; analysis based on the extended Kalman filter tracking technology, simulation compare different targeting tracking performance; 4. analysis of passive multi-sensor data fusion system, a detailed study of the architecture of the system, process, design, system block diagram is given as well as the software flow chart; detailed analysis of the data associated with core module function, location tracking and given the flow chart, the development of multi-platform data fusion simulation system software.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Electronic warfare ( jamming and anti - jamming )
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