Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE
碩士 === 國立臺灣科技大學 === 電機工程系 === 106 === In the context of electronic warfare, electronic counter-devices on military vehicles must achieve high sensitivity and high direction-finding accuracy for radio waves, and can effectively combat advanced radar equipment. Because of its low computational complex...
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ndltd-TW-106NTUS54421642019-05-16T00:59:41Z http://ndltd.ncl.edu.tw/handle/8787na Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE 基於RMSE最小化的一維相位干涉儀的最佳間距比與演算法比較之研究 Han-Wei Tzeng 曾漢偉 碩士 國立臺灣科技大學 電機工程系 106 In the context of electronic warfare, electronic counter-devices on military vehicles must achieve high sensitivity and high direction-finding accuracy for radio waves, and can effectively combat advanced radar equipment. Because of its low computational complexity and simple principle, the phase interferometer algorithm is often used in direction finding technology. Direction of the signal is estimated by the phase difference received between two antennas and uses interferometer algorithm to solve ambiguity. In the one-dimensional phase interferometer nonlinear antenna array system, If the baseline is lengthened, the accuracy of the angle of the estimated signal can be more accurate, but the probability of ambiguity will also increase. At this time, we have to choose the best trade-off to get lowest root mean square error (RMSE). We use mathematical derivation to propose an RMSE formula for algorithms. By using the RMSE formula, we can simulate and choose the optimal array ratio between the receivers in the AWGN channel. In addition, we choose three different algorithms according to the difference in the value of the angle of the direction. By deriving its RMSE formula and comparing its performance, we can use this RMSE formula to compare the advantages and disadvantages. Finally, the optimal array ratio of RMSE minimization is proposed by this RMSE formula. Li-Chung Chang 張立中 2018 學位論文 ; thesis 71 zh-TW |
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碩士 === 國立臺灣科技大學 === 電機工程系 === 106 === In the context of electronic warfare, electronic counter-devices on military vehicles must achieve high sensitivity and high direction-finding accuracy for radio waves, and can effectively combat advanced radar equipment. Because of its low computational complexity and simple principle, the phase interferometer algorithm is often used in direction finding technology. Direction of the signal is estimated by the phase difference received between two antennas and uses interferometer algorithm to solve ambiguity. In the one-dimensional phase interferometer nonlinear antenna array system, If the baseline is lengthened, the accuracy of the angle of the estimated signal can be more accurate, but the probability of ambiguity will also increase. At this time, we have to choose the best trade-off to get lowest root mean square error (RMSE). We use mathematical derivation to propose an RMSE formula for algorithms. By using the RMSE formula, we can simulate and choose the optimal array ratio between the receivers in the AWGN channel.
In addition, we choose three different algorithms according to the difference in the value of the angle of the direction. By deriving its RMSE formula and comparing its performance, we can use this RMSE formula to compare the advantages and disadvantages. Finally, the optimal array ratio of RMSE minimization is proposed by this RMSE formula.
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author2 |
Li-Chung Chang |
author_facet |
Li-Chung Chang Han-Wei Tzeng 曾漢偉 |
author |
Han-Wei Tzeng 曾漢偉 |
spellingShingle |
Han-Wei Tzeng 曾漢偉 Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
author_sort |
Han-Wei Tzeng |
title |
Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
title_short |
Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
title_full |
Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
title_fullStr |
Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
title_full_unstemmed |
Research on Comparison of Algorithms and Optimal Array Ratios for One-dimensional Phase Interferometer Based on Minimizing RMSE |
title_sort |
research on comparison of algorithms and optimal array ratios for one-dimensional phase interferometer based on minimizing rmse |
publishDate |
2018 |
url |
http://ndltd.ncl.edu.tw/handle/8787na |
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