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| 引用本文： | 孔令杰,黄观文.����TIKHONOV����Ķ̻��ߵ���Ԫģ���Ƚ��㷽���о�[J].大地测量与地球动力学,2010,30(2):148-151. |
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| 作者姓名： | 孔令杰 黄观文 |
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| 作者单位： | 长安大学地质工程与测绘工程学院,西安,710054 |
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| 摘 要： | ?????????????????????????????????????????????????1????????????????????С?????????????????￡?????TIKHONOV???????????????????????????????????????????2?????????????????????LAMBDA????????????????TEC?????仯????????????????????м??顣???????????·?????????????????????????????????????????
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| 关 键 词： | ????? ????? ????? TIKHONOV???? TEC???? |
ON SINGLE EOPCH AMBIGUITY RESOLUTION OF SHORT BASELINE BASED ON TIKHONOV REGULARIZATION |
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| Kong Lingjie,Huang Guanwen.ON SINGLE EOPCH AMBIGUITY RESOLUTION OF SHORT BASELINE BASED ON TIKHONOV REGULARIZATION[J].Journal of Geodesy and Geodynamics,2010,30(2):148-151. |
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| Authors: | Kong Lingjie Huang Guanwen |
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| Institution: | College of Geology Engineering and Geomatic, Chang’an University, Xi’an 710054 |
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| Abstract: | In GPS short baseline deformation monitoring, the coefficient of single epoch normal equation appears to be ill conditioned regularly, which causes the phase ambiguity of LS solutions inaccurate and the final results are of lower accuracy even distorted. To improve the successful rate of single epoch fixed ambiguity of dual-frequency observation, this contribution adopts two following measures.1)Under the conditions that the single epoch normal matrix is ill-condition and LS float solution is undependable, using TIKHONOV regularization matrix to improve the ill-condition of the normal matrix, thereby leading the fidelity of float solution to be improved; 2)By using LAMBDA search method based on the improved normal equations, total TEC changes are introduced to check its accuracy. The experiment shows that the new method can significantly improve the fidelity of float solution and increase the successful rate of the fixed ambiguity. |
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| Keywords: | single epoch float solution ill-condition TIKHONOV regularization total TEC |
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