Description: 说话人识别是语音识别的一种特殊方式，其目的不是识别语音内容，而是识别说话人是谁，即从语音信号中提取个人特征。采用矢量量化（VQ）可避免困难的语音分段问题和时间归整问题，且作为一种数据压缩手段可大大减少系统所需的数据存储量。本文提出了识别特征选取采用复倒谱特征参数和对应用VQ的说话人识别系统改进的一种方法。当用于训练的数据量较小时，复倒谱特征可以得到比较稳定的识别性能。VQ的改进方法避免了说话人识别系统的训练时间与使用时间相差过长从而导致系统的性能明显下降以及若利用自相关函数带来的大量运算。-Speaker Recognition Speech Recognition is a special way, its purpose is not voice recognition, Who identification but said that the voice signal from extracting personal characteristics. Vector quantization (VQ) can avoid the difficulties subparagraph voice to the issues and the whole time, and as a means of data compression system can significantly reduce the required data storage capacity. This paper presents a selection of identifiers employ Cepstrum parameters and the application of VQ speaker recognition system to improve a side France. When training for the amount of data is smaller, rehabilitation Cepstrum be relatively stable recognition performance. VQ improved ways to avoid the speech recognition system of training and the use of the difference in time, resulting in excessive sys Platform: |
Size: 23552 |
Author:张开 |
Hits:
Description: ：运用动力学原理建立了小车-倒摆的仿真模型, 并以对象输入输出的测试数据为依据，讨
论了Takagi-Sugeno 模糊模型的参数辨识，提出了模糊逆模型控制方案，基于此借助Matlab 的
Simulink 设计了小车-倒摆的动态模型及其模糊自适应控制系统。仿真结果证明了本文采用的控制
策略的有效性。-: The use of dynamic theory to establish a car- inverted pendulum simulation model and the object input and output test data as the basis to discuss the Takagi-Sugeno fuzzy model parameter identification, the fuzzy inverse model control scheme, based on the use of Matlab Simulink design of the car- inverted pendulum dynamic model and the fuzzy adaptive control system. Simulation results show this paper, the effectiveness of the control strategy. Platform: |
Size: 247808 |
Author:daizhk |
Hits:
Description: 说话人识别方法及其系统的应用开发研究.毕业设计论文,详细.本文对说话人识别方法应用作了较深入系统的研究。采用的方法分别是矢量量化(VQ)识别方法、隐马尔可夫模型(HMM)识别方法、高斯混合模型(GMM)识别方法。-Speaker Recognition Method and system development and research. Graduate design thesis in detail. In this paper, methods of application of speaker recognition system were made more in-depth research. Methods used are vector quantization (VQ) identification methods, hidden Markov model (HMM) to identify methods, Gaussian mixture model (GMM) identification methods. Platform: |
Size: 623616 |
Author:叶小勇 |
Hits:
Description: 是关于系统辨识的一篇论文和本人对文中所提论文方法的Matlab程序验证-System identification on a paper and my thesis on the methods mentioned in the text of the Matlab program to verify Platform: |
Size: 1415168 |
Author:gaofei |
Hits:
Description: 模型参考自适应控制系统由参考模型、受控对象、控制器和自适应律等组成。系统设计的核心是综合和设计控制器和自适应规律，使系统能稳定跟踪参考模型的输出[2]。近年来，对时变系统的自适应控制的研究已取得了较大的进展。在文[3]的基础上，本文针对线性时变系统的一种改进的模型参考自适应控制方案进行仿真研究，仿真结果说明了该控制方案的可行性。-Model reference adaptive control system consists of a reference model, the controlled object, controller and adaptive laws such as the composition. Is the core of system design and design of integrated controller and adaptive laws, enables the system to stabilize the output of reference model tracking [2]. In recent years, of time-varying systems of adaptive control research has been made greater progress. In the text [3] on the basis of this paper, linear time-varying systems A modified model reference adaptive control program simulation study, simulation results illustrate the feasibility of the control program. Platform: |
Size: 1024 |
Author:zl |
Hits:
Description: 摘要:本文旨在研究一种能对复杂热工对象的有效建模方法。基于遗传算法的辨识方法有较强的抗干扰能力,对低、高阶系统、延时系统都可以达到很好的辨识效果。根据单元机组的低阶非线性模型,推导出一个双进双出、能够描述机组动态特性及机炉间相互耦合关系的协调控制系统传递函数矩阵。依次模型为基础,提出一种基于改进的遗传算法的参数辨识方法。-Abstract: This paper aims to study a thermal complex objects can be an effective modeling method. Identification method based on genetic algorithm has strong anti-jamming ability, low, high-end systems, delay systems can achieve very good recognition results. According to unit power plant low-level non-linear model, derived a double inlet and outlet, can describe the dynamic characteristics and boiler-turbine unit is coupled between two relations, coordination and control system transfer function matrix. Turn model was proposed based on improved genetic algorithm based on parameter identification method. Platform: |
Size: 118784 |
Author:space6 |
Hits:
Description: 本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF-This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF Platform: |
Size: 1024 |
Author:余 |
Hits:
Description: 本文的目的是提供一个我开发的SSE优化的，C++库，用于人脸检测，你可以马上把它用于你的视频监控系统中。涉及的技术有：小波分析，尺度缩减模型（PCA,LDA,ICA），人工神经网络（ANN），支持向量机（SVM），SSE编程，图像处理，直方图均衡，图像滤波，C++编程，还有一下其它的人脸检测的背景知识-The purpose of this paper is to provide an I developed SSE optimized, C++ library, used for face detection, you can immediately use it for your video surveillance system. The technology involved are: wavelet analysis, scaling down model (PCA, LDA, ICA), artificial neural network (ANN), support vector machine (SVM), SSE programming, image processing, histogram equalization, image filtering, C++ programming, but also what other people have the background knowledge of face detection Platform: |
Size: 2305024 |
Author:憨豆 |
Hits:
Description: This paper presents a modified version of the twostep
least-mean-square (LMS)-type adaptive algorithm motivated
by the work of Gazor. We describe the nonstationary adaptation
characteristics of this modified two-step LMS (MG-LMS) algorithm
for the system identification problem. It ensures stable behavior
during convergence as well as improved tracking performance
in the smoothly time-varying environments. Platform: |
Size: 302080 |
Author:behrouz |
Hits:
Description: 本文提出了一种新的基于细菌生存优化(Bacterial Foraging Optimization –BFO)的非线性模型辨识方法。它是利用群集智能仿生BFO算法对一类Hammerstein系统进行辨识，从而估计出它的参数模型-This paper presents a new optimization based on bacterial survival (Bacterial Foraging Optimization-BFO) nonlinear model identification methods. It is the use of bionic swarm intelligence algorithm for a class of BFO Hammerstein system identification, to estimate the parameters of its model Platform: |
Size: 75776 |
Author:黄伟锋 |
Hits:
Description: 预测控制是一种新型的控制算法之一。经典的PID控制方法简单方便,但是精度不高。近年来发展的自适应、自校正方法精度高,但其本质要求在线辨识对象模型,对过程的未建模动态和扰动的适应能力差,鲁棒性不好。预测控制方法集PID和自适应方法二者之长,是一种面向工业过程特点、对模型要求低、在线计算方便、控制精度高的算法。数字计算机向小型、高速、大容量、低成本方向的发展,为预测控制这类新算法的实现提供了物质基础。 本文以PCT—Ⅲ型过程控制系统装置为平台,将预测控制算法运用到实际系统中去,该装置分为水位系统和温度系统。本文是将多步预测控制算法运用到温度系统。应用控制软件采用北京亚控公司的组态王软件(KingView),它界面设计能力强,也可以简单编程,但计算能力差,不能进行矩阵计算。而在温度多步预测控制中,计算量大,编程复杂,因此引入Matlab软件解决计算和编程,要解决的问题是MATLAB和组态王的数据交换,采用动态数据交换技术(DDE)。 预测控制算法有多种,本文采用的是动态矩阵控制方法(DMC)。-Predictive control is one of a new control algorithm. The classic PID control method is simple, but the accuracy is not high. In recent years the development of adaptive, self-calibration method is accurate, but its object model online identification of the essential requirements of the process unmodeled dynamics and disturbances poor adaptability, robustness is not good. Prediction and adaptive PID control method sets the length of the two methods is a feature for industrial processes, low requirement on the model, online convenience of calculation, the control algorithm for high accuracy. Digital computers to small, high-speed, large capacity, lower costs of development, such as predictive control implementation of the new algorithm provides the material base. In this paper, PCT-Ⅲ type of process control system devices as a platform, the predictive control algorithm to apply to the actual system, the device is divided into water system and temperature system. This is a multi-step pre Platform: |
Size: 3517440 |
Author:王明 |
Hits:
Description: 该仿真模型是一种利用模糊控制器调节PWM信号占空比的异步电动机直接转矩控制的策略，即在传统异步电动机直接转矩控制的基础上，用模糊控制器代替传统DTC中的滞环比较器和空间电压矢量状态选择器来细分控制规则，最后控制逆变器的开关，以减小转矩和磁链脉动，从而改善交流异步电机伺服系统的动、静态品质，使整个系统具有较强的鲁棒性和自适应性。-A method of the stator resistance estimate which based on the fuzzy neural network was proposed and the motor speed is estimated by MRAS speed identification algorithm based on the stator voltage and the current that can be easily detected. Besides, a new design of fuzzy direct torque control system of induction motor was introduced in this paper, which based on strategy of modulating the duty cycle to decrease the torque and stator flux ripple. This design uses fuzzy control block to instead of the traditional space voltage vector selector to control the inverter switch which can improve the static and dynamic performances of AC asynchronous motors, which make the whole control system have strong robustness. Platform: |
Size: 14336 |
Author:王晨 |
Hits:
Description: Face recognition is a rapidly growing research area due to increasing demands for security in
commercial and law enforcement applications. This paper provides an up-to-date review of research
efforts in face recognition techniques based on two-dimensional (2D) images in the visual
and infrared (IR) spectra. Face recognition systems based on visual images have reached a significant
level of maturity with some practical success. However, the performance of visual face
recognition may degrade under poor illumination conditions or for subjects of various skin colors.
IR imagery represents a viable alternative to visible imaging in the search for a robust and
practical identification system Platform: |
Size: 1065984 |
Author:sihi |
Hits:
Description: Along with investigating similarity metrics between audio
material, the topic of robust matching of pairs of audio content
has gained wide interest recently. In particular, if this matching
process is carried out using a compact representation of the audio
content ("audio fingerprint"), it is possible to identify unknown
audio material by means of matching it to a database with the
fingerprints of registered works. This paper presents a system for
reliable, fast and robust identification of audio material which can
be run on the resources provided by today s standard computing
platforms. The system is based on a general pattern recognition
paradigm and exploits low level signal features standardized
within the MPEG-7 framework, thus enabling interoperability on
a world-wide scale. Platform: |
Size: 116736 |
Author:ahmed |
Hits:
Description: Unscented Kalman Filter (UKF) exemplified on FitzHugh-Nagumo neuron dynamics.
Voltage observed, currents and inputs estimated.
FitzHughNagumo.m is the main program which calls the other programs.
If you use these programs for your publications etc., please refer to
H.U. Voss, J. Timmer & J. Kurths, Nonlinear dynamical system identification from uncertain and indirect measurements, Int. J. Bifurcation and Chaos 14, 1905-1933 (2004).
I will be happy to email this paper, which contains a tutorial about
estimation of hidden states and unscented Kalman filtering.
For commercial use and questions, please contact me. Platform: |
Size: 3072 |
Author:amir |
Hits:
Description: 人脸识别因其在安全验证系统、信用卡验证、医学、档案管理、视频会议、人机交互、系统公安(罪犯识别等)等方面的巨大应用前景而越来越成为当前模式识别与人工智能领域的一个研究热点。 本文提出了一种基于24位彩彩色图图像对人脸进行识别的方法，介绍的主要内容是图像处理，它在整个软件源码中占有极其重要的地位，图像处理的好坏直接影响着定位与识别的准确率。本软件源码主要用到的图像处理技术是：光线补偿、高斯平滑与二值化
-Face recognition because of its great future in terms of security verification system, credit card verification, medical records management, video conferencing, human-computer interaction, systems Public Order (criminals recognition), but has increasingly become the field of pattern recognition and artificial intelligence a hot research topic. In this paper, the identification of human faces based on a 24-color color map image, described image processing, it occupies an extremely important position in the software source code, image processing, a direct impact on the positioning and recognition accuracy. The software source code mainly used in image processing technology: light compensation, Gaussian smoothing, binarization Platform: |
Size: 67584 |
Author:ru |
Hits:
Description: ：首先介绍了系统辨识的基本原理，简要介绍了Matlab中系统辨识
的实现方法。并结合具体的例子，显示Matlab系统辨识工具箱在系统辨
识中的强大功能和辨识快速准确等优点。-This paper introduces the basic theory of System Identification，the
realization method in Matlab and presents the strong function of System
Identification toolbox with the merit of fast，precision and SO 011 by an
example． Platform: |
Size: 228352 |
Author:asda |
Hits:
Description: Model-based control strategies like model predictive
control (MPC) require models of process dynamics accurate
enough that the resulting controllers perform adequately in
practice. Often, these models are obtained by fitting convenient
model structures (e.g., linear finite impulse response (FIR) models,
linear pole-zero models, nonlinear Hammerstein or Wiener
models, etc.) to observed input–output data. Real measurement
data records frequently contain “outliers” or “anomalous data
points,” which can badly degrade the results of an otherwise
reasonable empirical model identification procedure. This paper
considers some real datasets containing outliers, examines the
influence of outliers on linear and nonlinear system identification,
and discusses the problems of outlier detection and data cleaning.
Although no single strategy is universally applicable, the Hampel
filter described here is often extremely effective in practice. Platform: |
Size: 119808 |
Author:JTNT |
Hits:
Description: This paper describes the application of an identification algorithm clustering type Gustafson-Kessel nonlinear
dynamical system. From input-output data the algorithm generates fuzzy models of Takagi-Sugeno. This type of modeling is applied
to a non-linear numerical model. The non-linear input / output model of the system is decomposed in several described by
membership functions and fuzzy rule-based local linear systems. The results are presented and prospects for future work. Platform: |
Size: 152576 |
Author:orques
|
Hits:
Search - paper system identification