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	Embedded system of image storage based on Fiber Channel (EI CONFERENCE) 会议论文 OAI收割 Quantum Optics, Optical Data Storage, and Advanced Microlithography, November 12, 2007 - November 14, 2007, Beijing, China 作者: Wang H.; Wang H.; Wang H.; Wang H.; Chen X. 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/03/25 In domains of aerospace aviation aiming and optic measure etc. the embedded system of imaging processing and recording is absolutely necessary which has small volume high processing speed and high resolution. But the embedded storage technology becomes system bottleneck because of developing slowly. It is used to use RAID to promote storage speed but it is unsuitable for the embedded system because of its big volume. Fiber channel (FC) technology offers a new method to develop the high-speed portable storage system. In order to make storage subsystem meet the needs of high storage rate make use of powerful Virtex-4 FPGA and high speed fiber channel advance a project of embedded system of digital image storage based on Xilinx Fiber Channel Arbitrated Loop LogiCORE. This project utilizes Virtex4 RocketIO MGT transceivers to transmit the data serially and connects many Fiber Channel hard drivers by using of Arbitrated Loop optionally. It can achieve 400MBps storage rate breaks through the bottleneck of PCI interface and has excellences of high-speed real-time portable and massive capacity.
	Displacement estimation by the phase-shiftings of fourier transform in present white noise (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China 作者: Wu Y.-H. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 Displacement estimation is a fundamental problem in Real-time video image processing. It can be typically approached by theories based on features in spatial domain. This paper presents an algorithm which improves the theory for estimating the moving object's displacement in spatial domain by its Fourier transform frequency spectrum. Because of the characters of Fourier transform the result is based on all the features in the image. Utilizing shift theorem of Fourier transform and auto-registration the algorithm employs the phase spectrum difference in polar coordinate of two frame images sequence with the moving target1 2. The method needn't transform frequency spectrum to spatial domain after calculation comparing with the traditional algorithm which has to search Direc peak and it reduces processing time. Since the technique proposed uses all the image information including all the white noise in the image especially and it's hard to overcome the aliasing from noises but the technique can be an effective way to analyze the result in little white noise by the different characters between high and low frequency bands. It can give the displacement of moving target within 1 pixel of accuracy. Experimental evidence of this performance is presented and the mathematical reasons behind these characteristics are explained in depth. It is proved that the algorithm is fast and simple and can be used in image tracking and video image processing.
	一种改进的RM可调度性判定算法期刊论文 OAI收割软件学报, 2005, 卷号: 16, 期号: 1, 页码: 89-100 刘军祥; 王永吉 \| 收藏 \| 浏览/下载：27/0 \| 提交时间：2010/08/17 实时系统调度实时调度 RM算法硬实时系统 real-time system schedulability real-time scheduling RM(rate monotonic)algorithm hard real-time system
	嵌入式操作系统调度算法研究学位论文 OAI收割工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2003 作者: 王知学收藏 \| 浏览/下载：92/0 \| 提交时间：2015/09/02 嵌入式操作系统硬实时软实时二级层次调度反馈调度 PID控制模糊控制 Embedded Operating System Hard real-time Soft real-time Two-level hierarchical schedule Feedback schedule PID Control Fuzzy Cont