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浏览/检索结果: 共5条，第1-5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 Generative adversarial network based scalable on-chip noise sensor placement 会议论文 International System on Chip Conference 作者:  Liu, J.;  Ding, Y.;  Yang, J.;  Schlichtmann, U.;  Shi, Y. 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/30 Product design  Programmable logic controllers  Adversarial networks  High dimensional spaces  Near-Threshold Computing  Number of samples  Optimal placements  Power reductions  Statistical modeling  Voltage emergencies  Electric power transmission networks   Enhancement of dielectric properties by additions of Ni nano-particles to a X7R-type barium titanate ceramic matrix 会议论文 Ceramics International, 3rd Asian Meeting on Electroceramics (AMEC-3), , Singapore, INSPEC Renzheng Chen; Xiaohui Wang; Hai Wen; Longtu Li; Zhilun Gui 收藏  |  浏览/下载：5/0 Analysis of laser jamming to satellite-based detector (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China Wang S.-W.; Guo L.-H.; Guo R.-H. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 The reconnaissance satellite  communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites  anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups  but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large  it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain  so laser disturbing satellite detector is possible. In order to determine its feasibility  the theoretical analyses and experimental study are carried out in the paper. Firstly  the influence factors of laser disturbing satellite detector are analyzed in detail  which including laser power density on the surface of the detector after long distance transmission  and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit  but dependence on the following parameters: laser average power in the ground  laser beam quality  tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly  the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away  which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally  using the theoretical model  the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2  which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser  even decrease laser average power  it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.   A segment detection method based on improved Hough transform (EI CONFERENCE) 会议论文 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Han Q.-L.; Zhu M.; Yao Z.-J. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 Hough transform is recognized as a powerful tool in shape analysis which gives good results even in the presence of noise and the disconnection of edge. However  3. applying the standard Hough transform equation to every point of the input image edge  4. according to the local threshold  6. merging the segments whose extreme points are near. Experiment results show the approach not only can recognize regular geometric object but also can extract the segment feature of real targets in complex environment. So the proposed method can be used in the target detection of complicated scenes  traditional Hough transform can only detect the lines  2. quantizing the parameter space  and extracting a group of maximums according to the global threshold  eliminating spurious peaks which are caused by the spreading effects  and will improve the precision of tracking.  cannot give the endpoints and length of the line segments and it is vulnerable to the quantization errors. Based on the analysis of its limitations  Hough transform has been improved in order to detect line segment feature of targets. The algorithm aims to avoid the loss of spatial information  as well as to eliminate the spurious peaks and fix on the line segments endpoints accurately  5. fixing on the endpoints of the segments according to the dynamic clustering rule  which can expediently be used for the description and classification of regular objects. The method consists of 6 steps: 1. setting up the image  parameter and line-segment spaces   InGaAs/InGaAsP microdisk lasers grown by GSMBE (EI CONFERENCE) 会议论文 11th International Conference on Molecular Beam Epitaxy, September 11, 2000 - September 15, 2000, Bijing, China Wu G.; Wang X. H.; Zheng Q.; Ren D. C.; Zhang X. D. 收藏  |  浏览/下载：11/0  |  提交时间：2013/03/25 Optical resonance modes have been observed in optically pumped microdisk cavities fabricated from 80 A/50 A InGaAs/InGaAsP multiple quantum wells structures grown by gas-source molecular beam epitaxy. We have achieved optically pumped InGaAs/InGaAsP multiquantum wells microdisk lasers at a pump power threshold of Pth = 150 W at pump wavelength = 514.5 nm  which was measured for a 10 m-diameter disk with lasing emission wavelength near = 1.6 m. 2001 Elsevier Science B.V.