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A 10-bit 0.41-mW 3-MSps R-I DAC with full-swing output voltage 期刊论文
IEICE Electronics Express , 2018
作者:  Fengqi Yu;  Qinjin Huang
收藏  |  浏览/下载：34/0  |  提交时间：2019/01/31
How Does B-Value Affect the Estimation of Ensemble Average Propagator in HARDI? 会议论文
Seattle, USA, 20130616-20130620
作者:  Xie, Sangma;  Zuo, Nianming;  Shang, Liqing;  Song, Ming;  Fan, Lingzhong
收藏  |  浏览/下载：18/0  |  提交时间：2017/01/06
牛角瓜及其发根中碳氢化合物与强心苷的代谢调控 学位论文
博士: 中国科学院研究生院, 2012
孙健
收藏  |  浏览/下载：47/0  |  提交时间：2013/09/25
掺稀土锗酸盐玻璃光纤中红外光谱与激光性能的研究 学位论文
博士: 中国科学院上海光学精密机械研究所, 2012
作者:  徐茸茸
收藏  |  浏览/下载：107/0  |  提交时间：2016/11/28
The Research of real time auto-recognition of the moire fringe (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wang M.-J.; Wu Z.-G.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity  high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black  the angle of the stripes is uniform  the width of the stripes is uniform  the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE)  the closer a series of data is  the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin  180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those  then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe  60 equal angles are divided in the neighborhood of the angle  then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe  we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn  and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise  an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe  and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest  the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method  the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method  and it can achieve with 15 ms  that satisfying the demand of real time. 2011 SPIE.  
Sigma Delta A/D转换器和锁相环的设计 学位论文
博士, 中国科学院声学研究所: 中国科学院声学研究所, 2005
李罗生
收藏  |  浏览/下载：26/0  |  提交时间：2011/05/07
中心孔探测磁超分辨耦合薄膜制备及性能研究 学位论文
博士: 中国科学院上海光学精密机械研究所, 2005
作者:  方铭
收藏  |  浏览/下载：15/0  |  提交时间：2016/11/28
面向2μm单频激光应用的氟化物改性掺铥锗酸盐玻璃的研究 学位论文
作者:  焦孟珺
收藏  |  浏览/下载：23/0  |  提交时间：2018/12/26

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