杂志简介:《自动化学报》杂志经新闻出版总署批准,自1963年创刊,国内刊号为11-2109/TP,是一本综合性较强的计算机期刊。该刊是一份月刊,致力于发表计算机领域的高质量原创研究成果、综述及快报。主要栏目:综述、长论文、论文与报告、短文
作者:席裕庚; 张群亮 刊期:2005年第05期
Using the framework of predictive control algorithms and the analysis results of unconstrained predictive control systems, the desired pole placement is achieved by the coefficient mapping between the characteristic polynomials of the closed-loop system and the open-loop plant. The designed control law can not only e...
作者:王成红; 宋苏 刊期:2005年第05期
Some results on linear system theory are reported. Based on these results, necessary and sufficient conditions for the controllability and observability of both continuous-time and its corresponding discrete-time multivariable linear time-invariant systems are presented.
作者:杜升之; 陈增强; 袁著祉; 张兴会 刊期:2005年第05期
This paper analyzes noise sensitivity of bidirectional association memory (BAM) and shows that the anti-noise capability of BAM relates not only to the minimum absolute value of net inputs(MAV), as some researchers found, but also to the variance of weights associated with synapse connections. In fact, it is determin...
作者:张艳; 李少远 刊期:2005年第05期
A novel decentralized PID controller design procedure based on backstepping principles is presented to operate multiple-input multiple-output (MIMO)dynamic processes. The first key feature of the design procedure is that a whole MIMO control system is decomposed into multiple control loops, therefore the sub-controll...
作者:黄继武; 谷利民; 施云庆 刊期:2005年第05期
Robustness is one of the most important requirements of digital watermarking for many applications. Spread-spectrum based methods are not effective enough to ensure their robustness. By modeling digital watermarking as digital communications, several researchers proposed using error correcting coding (ECC) to improve...
作者:钟志光; 易建强; 赵冬斌 刊期:2005年第05期
This paper presents a novel depth estimation method based on feature points. Two points are selected arbitrarily from an object and their distance in the space is assumed to be known.The proposed technique can estimate simultaneously their depths according to two images taken before and after a camera moves and the m...
作者:刘刚; 敬忠良; 孙韶媛 刊期:2005年第05期
The discrete wavelet transform has become an attractive tool for fusing multisensor images. This paper investigates the discrete wavelet frame transform. A major advantage of this method over discrete wavelet transform is aliasing free and translation invariant. The discrete wavelet frame (DWF) transform is used to d...
作者:张荣跃; 倪江群; 黄继武 刊期:2005年第05期
An adaptive image watermarking algorithm based on HMM in wavelet domain is proposed. The algorithm is abstracted as follows: 1) the vector HMM model is employed to describe the statistical characteristic of image wavelet coefficients and the resulting HMM based detector achieves significant improvements in performanc...
作者:王社阳; 宋申民; 强文义; 陈兴林 刊期:2005年第05期
A novel subpixel corner detection method based on spatial moment is developed in this paper. Firstly, the spatial-moment-generating function, gradient magnitude and variation of gradientdirection corner are used as the decision rule of corner detection by analyzing the mathematical formula of corner-model spatial mom...
作者:伦淑娴; 张化光 刊期:2005年第05期
This paper develops delay-independent fuzzy hyperbolic guaranteed cost control for nonlinear continuous-time systems with parameter uncertainties. Fuzzy hyperbolic model (FHM) can be used to establish the model for certain unknown complex system. The main advantage of using FHM over Takagi-Sugeno (T-S) fuzzy model is...
作者:连爱萍; 高自友 刊期:2005年第05期
This paper presents a generalized bi-level programming model of combined dynamic traffic assignment and traffic signal control, and especially analyzes a procedure for determining the equilibrium queuing delays on saturated links for dynamic network signal control satisfying the FIFO (first-in-first-out) rule. The ch...
作者:闻英友; 冯永新; 王光兴 刊期:2005年第05期
In a sensor network, reasonable distribution of sensor nodes will do much good to the improvement of sensorial ability. In a sensor network constructed by randomly scattering, a better sensing coverage can be achieved by topology adjustment utilizing mobility of some sensor nodes. To solve this problem, we define an ...
作者:宋杨; 向峥嵘; 陈庆伟; 胡维礼 刊期:2005年第05期
This paper discusses the phenomena of sliding mode in dynamic behavior of planar switched systems. We propose an approach to estimate the domain in which the sliding motion may occur. The relationship between the chattering angle and the switching time is given and utilized to check the existence of sliding mode with...
作者:刘妹琴 刊期:2005年第05期
提出一种新的神经网络模型-时滞标准神经网络模型(DSNNM),它由线性动力学系统和有界静态时滞非线性算子连接而成.利用不同的Lyapunov泛函和S方法推导出DSNNM全局渐近稳定性和全局指数稳定性的充分条件,这些条件可表示为线性矩阵不等式(LMI)形式.大多数时滞(或非时滞)动态神经网络(DANN)稳定性分析或神经网络控制系统都可以转化为DSNNM,以便用统...
作者:张靖; 李春文; 吴热冰 刊期:2005年第05期
研究了开放环境下多比特量子计算系统的相干控制建模问题.基于开放量子系统的数学模型,选取适当的矩阵基将描述多比特量子计算机的复矩阵动态控制模型转化为实向量空间上的控制模型,并给出计算相应的结构系数的方法.这些工作提供了进一步研究控制律设计的基础.