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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Data processing method of multi-position strap-down north seeking system based on SVD (EI CONFERENCE) 会议论文 2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China Shen C.-W.; Liu C.; Yu S.-B.; Wang Z.-Q.; Li J.-R. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 With the aim to fit the sin wave curve of a multi-position strap-down north seeking system and to calculate the real north angle accurately  the principles of the system and the algorithm of singular value decomposition(SVD) are introduced. The factors influencing the measuring precision are also analyzed. Then  the algorithm is adopted to fit curves. Experimental results indicate that the singular value decomposition is very precise  for its error sum is 1.1102V  and the squared error is 2.8mV. Moreover  for phase angle measurement  measured six times in same direction  the squared error is 24 (1). The method based on SVD can satisfy the system precision requirements of curve-fitting north seeking systems. 2011 IEEE.   Understanding regular waves effect an ship by numerical wave tank simulation (CPCI-S收录) 会议论文 APPLIED MECHANICS AND MATERIALS II, PTS 1 AND 2 作者:  Fan Shaotao[1];  Zhao Chengbi[1];  Tang Youhong[2] 收藏  |  浏览/下载：1/0  |  提交时间：2019/04/12 Numerical wave tank  ship motion response  Volume of fluid  six-degrees-of-freedom  dynamic mesh