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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 发表日期：2010     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 Efficient coding and decoding algorithm based on generalized Huffman tree 期刊论文 2010, 2010 Guo Jianguang; Zhang Weijie; Yang Jian; An Wentao; Xiong Tao 收藏  |  浏览/下载：3/0 Measurement of non-uniform residual stresses by combined moire interferometry and hole-drilling method: theory, experimental method and applications 期刊论文 2010, 2010 Ya Min; Dai Fulong; Xie Huimin; Jian, L. 收藏  |  浏览/下载：3/0 VLSI architecture of EBCOT encoder for JPEG2000 期刊论文 2010, 2010 Liu Lei-bo; Li De-jian; Meng Hong-ying; Zhang Li; Wang Zhi-hua; Chen Hong-yi; Xia Yu-wen 收藏  |  浏览/下载：1/0 Call admission control and scheduling schemes with QoS support for real-time video applications in IEEE 802.16 networks 期刊论文 2010, 2010 Ou Yang; Jianhua Lu 收藏  |  浏览/下载：1/0 Error concealment techniques in MPEG-2 video decoders 期刊论文 2010, 2010 Cao Jihua; Li Fengting 收藏  |  浏览/下载：2/0 Distributed real-time measurement scheme for local QoS states 期刊论文 2010, 2010 Jiang Fan; Xu Mingwei; Cui Yong; Xu Ke 收藏  |  浏览/下载：2/0 Dynamic closed-loop test for real-time drift angle adjustment of space camera on the Earth (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China Hu J.; Cao X.; Wang D.; Wu W.; Xu S. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 In order to eliminate the influence of aircraft attitude angle to the image quality of space camera  and assure that the drift angle of space camera could be accurately adjusted at the orbit  a novel closed-loop test method is provided for real-time drift angle adjustment of space camera on the Earth. A long focal length dynamic aim generator is applied to simulate the image motion and the variety drift angle  and to detect the precision of the image motion compensation machinery and the capability of the drift angle control system. The computer system is used to control the dynamic aim generator  accomplish the data processing  transmit and receive the data information. The seamless connection and the data transmission between the aim generator and the aircraft simulation devices are constituted. The command  parameter and drift angle data transmitted by the simulation devices are received by the space camera at the real time  then the photos are taken and the draft angle is adjusted simultaneously. It is shown that the drift angle can be accurately tracked by the space camera at the real time  and the detective method satisfies the test requirement. 2010 Copyright SPIE - The International Society for Optical Engineering.   In situ long trace profiler for measurement of Wolter type-I mirror (EI CONFERENCE) 会议论文 Advances in Metrology for X-Ray and EUV Optics III, August 1, 2010 - August 2, 2010, San Diego, CA, United states Cui T. G.; Wang Y. G.; Ma W. S.; Chen B. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 The surface profile of Wolter type-I mirror has a great impact on the performance of Solar X-ray Telescope. According to the existing fabrication instrument and experimental conditions in our lab  an in situ Long Trace Profiler is developed and set up on the fabrication instrument in order to measure the surface profile of Wolter mirror in real time during fabrication process. Its working mechanism  structural parameters and data processing algorithm are investigated. The prototype calibrated by a standard plane mirror is used to measure a sample of Wolter type-I mirror. The results show that our prototype can achieve an accuracy of 2.6rad rms for slope error with a stability of 1.33rad during the whole measurement period. This can meet further fabrication requirements. 2010 Copyright SPIE - The International Society for Optical Engineering.