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Multicomponent Chirp Signal Detection Using Fractional Fourier Analysis

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Journal of Systems Engineering and Electronics 1999年第3期10卷 57-63页

作者： Dong, Yongqiang Tao, Ran zhou, siyong Wang, Yue Beijing Inst of Technology Beijing China

The aim of this paper is to propose a novel technique for the detection of multicomponent chirp signal and the parameter estimation based on fractional Fourier transform (FRFT). The relationship between the FRFT and the Wigner-Ville distribution (WVD) is investigated and the performance of the new approach is analyzed both in the computation complexity and the resolution in the fractional Fourier domain.

关键词： Fourier transforms Computational complexity Image quality Parameter estimation

Serial Failure Diagnosis of a Transmission Line Protection Relaying System by Petri Nets

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Journal of Systems Engineering and Electronics 2001年第1期12卷 59-64页

作者： Zhang Zhiming Wang Yue Tao Ran &zhou siyong Dept. of Electronics Engineering, Beijing Institute of Technology, 100081, P. R. China Dept. of Electronics Engineering Beijing Institute of Technology Dept.of Electronics Engineering Beijing Institute of Technology

With the development of large-scale complicated modern power systems, the requirement for the associated protection scheme tends to be more stringent and its combination more complex. However, it is very difficult to figure out the factors of failure of such systems. This paper proposes a Petri net model of a transmission line protection relaying system, including three types of relays as well as an automatic reclosing device, and shows how to diagnose serial failure of the system by analyzing invariant sets of the model. Furthermore, it gives four basic types of failure sequences and its execution is much more intuitive and effective than the traditional method.

关键词： Electric fault location Electric power system protection Electric relays Failure analysis Mathematical models Petri nets Relay protection

THE APPLICATION RESEARCH OF VIDEO SERVER SYSTEM FOR VIDEO ON DEMAND

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Journal of Electronics(China) 2006年第2期23卷 295-297页

作者： Zhang Yinghui Tao Ran Wang Yue zhou siyong Department of Electronic Engineering Beijing Institute of Technology Beijing 100081 China

A comprehensive research on key issues of the large-scale video server system for Video On Demand (VOD) client/server system is conducted based mainly on real time (rt)/non-real time (nrt) Variable Bit Rate or Constant Bit Rate (VBR/CBR) MPEG-2 MP@ML Signal Program Transport Stream (SPTS) for movies, and general architecture for storage, control, caching subsystems from Loosely Coupled Computer (LCC), Symmetric Multiple Processing (SMP), and Massively Parallel Processing (MPP) video server is conceptualized. Meanwhile, Redundant Array of Inexpensive Disks (RAID) storage system are presented and the centralized FCP/SAN huge storage technology is introduced in terms of its scalability, throughput, and connectivity performances.

关键词： Video on demand Video server Variable Bit Rate (VBR) Constant Bit Rate (CBR) Client/server

THE MULTIMEDIA SET-TOP-BOX BASED ON PC PLATFORM

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Journal of Electronics(China) 2005年第5期22卷 546-549页

作者： Zhang Yinghui Tao Ran Wang Yue zhou siyong Department of Electronic Engineering Beijing Institute of Technology Beijing 100081 China

A comprehensive research on key issues of the multimedia set-top-box used in active TV is conducted. Meanwhile a practical architecture for the multimedia set-top-box based on PC platform is designed. The architecture, with its advanced feature set, high integration and PCI interface is well suited to bring the set-top-box experience to consumers at an affordable price,and makes it very attractive for the consumer.

关键词： Set-top-box MPEG-2 PC platform Active TV

Wavelet-Based Fractal Function Approximation

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Journal of Systems Engineering and Electronics 1999年第4期10卷 60-66页

作者： Zhang Hejei Tao Ran zhou siyong & Wang Yue(Department of Electronic Engineering, Beijing Institute of Technology, 100081, P. R. China) Department of Electronic Engineering Beijing Institute of Technology 100081 P. R. China

In this paper, we study on the application of radical B-spline wavelet scaling function in fractal function approximation system. The paper proposes a wavelet-based fractal function approximation algorithm in which the coefficients can be determined by solving a convex quadraticprogramming problem. And the experiment result shows that the approximation error of this algorithm is smaller than that of the polynomial-based fractal function approximation. This newalgorithm exploits the consistency between fractal and scaling function in multi-scale and multiresolution, has a better approximation effect and high potential in data compression, especially inimage compression.

关键词： B-spline Wavelet scaling function Fractal function Approximation Quadratic programming.

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基于神经网络数据融合的目标跟踪简化算法

系统工程与电子技术 2001年第3期23卷 82-84页

作者：范凯范凯陶然周思永北京理工大学电子工程系 100081

分析了基于神经网络数据融合的目标跟踪算法 ,指出了传统的融合算法计算量大 ,神经网络目标向量不易选取等缺点 ,并提出了一种简化的算法。应用理论分析和蒙特卡洛仿真方法 ,对标准卡尔曼滤波算法和简化的滤波算法进行了比较 ,并给出了... 详细信息

分析了基于神经网络数据融合的目标跟踪算法 ,指出了传统的融合算法计算量大 ,神经网络目标向量不易选取等缺点 ,并提出了一种简化的算法。应用理论分析和蒙特卡洛仿真方法 ,对标准卡尔曼滤波算法和简化的滤波算法进行了比较 ,并给出了均方根误差的统计值。该简化算法原理简单 ,数据处理量小 ,速度快 ,误差小 ,特别适用于多传感器的处理 ,将融合结果反馈给单传感器。

关键词：卡尔曼滤波神经网络目标跟踪算法数据融合

Detection and parameter estimation of multicomponent LFM signal based on the fractional Fourier transform

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Science in China(Series F) 2004年第2期47卷 184-198页

作者： QI Lin1, 2, TAO Ran1, zhou siyong1 & WANG Yue1 1. Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081, China 2. School of Information Engineering, Zhengzhou University, Zhengzhou 450052, China Correspondence should be addressed to QI Lin (email: qilin@***) 1. Department of Electronic Engineering Beijing Institute of Technology 100081 Beijing China 2. School of Information Engineering Zhengzhou University 450052 Zhengzhou China

This paper presents a new method for the detection and parameter estimation of multicomponent LFM signals based on the fractional Fourier transform. For the optimization in the fractional Fourier domain, an algorithm based on Quasi-Newton method is proposed which consists of two steps of searching, leading to a reduction in computation without loss of accuracy. And for multicomponent signals, we further propose a signal separation technique in the fractional Fourier domain which can effectively suppress the interferences on the detection of the weak components brought by the stronger components. The statistical analysis of the estimate errors is also performed which perfects the method theoretically, and finally, simulation results are provided to show the validity of our method.

关键词： LFM signal parameter estimation fractional Fourier transform.

ANALYZING OF MULTICOMPONENT UNDERSAMPLED SIGNALS BY HAF

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Journal of Electronics(China) 2001年第2期18卷 121-126页

作者： Tao Ran Shan Tao zhou siyong Wang Yue (Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081) Department of Electronic Engineering Beijing Institute of Technology Beijing

The phenomenon of frequency ambiguity may appear in radar or communication systems. S. Barbarossa(1991) had unwrapped the frequency ambiguity of single component undersampled signals by Wigner-Ville distribution(WVD). But there has no any effective algorithm to analyze multicomponent undersampled signals by now. A new algorithm to analyze multicomponent undersampled signals by high-order ambiguity function (HAF) is proposed hera HAF analyzes polynomial phase signals by the method of phase rank reduction, its advantage is that it does not have boundary effect and is not sensitive to the cross-items of multicomponent *** simulation results prove the effectiveness of HAF algorithm.

关键词： Undersampled signal Frequency estimation HAF

院校治理视角下的高职教育质量年度报告制度:成就、问题与优化策略

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中国高教研究 2019年第8期 82-86页

作者：邵坚钢周思勇宁波职业技术学院浙江宁波315800

建立质量报告制度是高职院校立德树人、提高人才培养质量的重要举措,也是完善院校内部治理的重要途径。质量报告制度促进了院校理顺内外部治理关系,形成了良好办学环境;展示了办学经验、特色和成绩,形成了一批有影响力的育人成果;分析... 详细信息

建立质量报告制度是高职院校立德树人、提高人才培养质量的重要举措,也是完善院校内部治理的重要途径。质量报告制度促进了院校理顺内外部治理关系,形成了良好办学环境;展示了办学经验、特色和成绩,形成了一批有影响力的育人成果;分析了面临的问题和挑战,探索了优化治理的现实策略。但部分院校在质量报告制度实施中认识不到位,尚未建立起质量报告发布制度;对质量的内涵理解不充分,难以全面反映学校办学情况;质量报告本身的质量有待提高,不能发挥院校治理量化工具的作用。高职院校要通过提高认识、全面把握质量的核心内涵、建立质量报告内部编写和发布机制以提升报告本身质量等策略,把质量报告制度作为优化院校治理的重要抓手,通过完善质量报告制度提高人才培养质量。

关键词：院校治理高职教育质量年度报告制度办学质量