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Research on Anti-jamming Technique of GPS Based on Adaptive Antenna

Author: LiXuChao
Tutor: TianHongXin
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: GPS Adaptive antenna DOA Estimation Anti-jamming Power inversion
CLC: P228.4
Type: Master's thesis
Year: 2008
Downloads: 474
Quote: 6
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Abstract


With GPS global positioning system more widely used in military and civilian fields , it is easy to interference problems become increasingly serious. Due to the influence of interference , GPS receiver performance becomes unstable or even completely ineffective . Work properly to make GPS receivers in the interference environment , anti-jamming GPS receiver is imperative. The elaborate GPS works , signal format , the impact of RF interference and adaptive antenna basic principle on the basis of antenna array interference problem , the fruition as follows : 1 . Adaptive antenna array - based GPS anti-jamming receiver program ; 2 . determine the number of array elements from the most basic to proceed to discuss the array form selection , a detailed analysis of the linear array , rectangular array and a circular array of three arrays in the form of selected suitable for the proposed anti- interfere with the formation of the program ; 3. analysis DOA Estimation Algorithm and anti-jamming algorithm , the traditional anti-jamming algorithm is applied to the two - dimensional space angle nulls forming simulation and traditional DOA estimation algorithm is extended to the two-dimensional space angle , simulation , determined to meet DOA Estimation Algorithm and anti-jamming algorithm based on adaptive antenna GPS anti-jamming receiver solution ; 4 . simulation of the performance of the GPS anti - jamming receiver scheme proposed draw useful conclusions.

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
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