Dissertation
Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > Antenna: work principle > Smart antenna

Smart Antenna Algorithms Study

Author ZhangHaiShe
Tutor SunXuBao
School Shandong University of Science and Technology
Course Communication and Information System
Keywords Smart antenna DOA Estimation Modified MUSIC Algorithm Adaptive beamformer The minimum error rate
CLC TN821.91
Type Master's thesis
Year 2010
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In the 1990s , the smart antenna technology into the field of mobile communications , used to complete the spatial filtering and positioning . This paper studies the smart antenna algorithm part , including the direction of arrival (DOA) estimation and beamforming . DOA estimation using super-resolution techniques to reach the target position so that the signal accurately . Beamforming technology the form beam at the target , effectively tracking observe . This paper has three aspects : First, the improved MUSIC algorithm used to solve the incident signal is related or coherent signal , classic MUSIC algorithm performance degradation and even failure . Improved MUSIC algorithm is still able to make the incident signal reaches the reference element accurately , correctly estimate the DOA . Secondly , the introduction of several best performance criteria , beamforming algorithms use different criteria can produce different convergence and computational complexity . The simulation LMS and CM convergence of the algorithm and the beam pattern , and compare instructions . Finally, the use of a minimum BER algorithm applied to beam forming, to form a new beam -forming technique . The effect of the algorithm in the case of synchronization of the useful signal and the interference signal , the suppression of the interference in the communication system according to good effect , and in the error , computational complexity , etc. are superior to the LMS algorithm.

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