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浏览/检索结果: 共4条，第1-4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 Error Analysis and Experiments of Attitude Measurement using Laser Gyroscope 会议论文 Shanghai, PEOPLES R CHINAShanghai, PEOPLES R CHINA, NOV 24-26, 2017NOV 24-26, 2017 作者:  Ren, Xin-Ran;  Ma, Wen-Li;  Jiang, Ping;  Huang, Jin-Long;  Pan, Nian 收藏  |  浏览/下载：24/0  |  提交时间：2019/08/23 laser gyro  attitude measurement  error analysis  photoelectric tracking and measuring equipment   visualizing inference process of a rule engine 会议论文 4th Visual Information Communication - International Symposium, VINCI 2011, Hong Kong, China, August 4, Shi Jian; Qiao Ying; Wang Hongan 收藏  |  浏览/下载：13/0  |  提交时间：2011/10/10 Algorithms  Java programming language  Logic programming  Pattern matching  Visual communication  Visualization   Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文 International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China Zhang S.; Wu Y.; Zhao J. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.   Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE) 会议论文 Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China Zhang Z.; Sun J.; Wu K. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme  the sine output signal of the FOG was sampled and disposed  and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes  can meet the orientation need of artillery  terrain measurement vehicle  armored car  unmanned drive vehicle  geodetic survey and tunnel exploration.