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信号模式     
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  signal pattern
     Research on Shape Signal Pattern Recognition Based on Neural Network
     基于神经网络的板形信号模式识别方法的研究
短句来源
     Urodynamic quality control (PartⅡ):recognition of typical signal pattern and its role in real-timequalitative quality control
     尿动力学质量控制(Ⅱ):典型信号模式的识别及其在实时定性质量控制中的作用
短句来源
     Given the layout information and the input signal pattern, the method can calculate the temperature distribution on a chip and the chip performance.
     给定芯片的版图信息和输入信号模式 ,该软件能够计算芯片的工作温度分布 ,并得到该温度分布下的电路性能 ,与传统的数值方法比较 ,速度快一个数量级以上。
短句来源
     Hidden Markov model(HMM) as a tool for disposing signal pattern which has great ability of building time sequence, has widely been used in speech recognition. It is especially fit for signal which is nonlinear, non-stationary, bad in repeating to analysis.
     隐马尔可夫模型(Hidden Markov model,HMM)是一种具有较强的时间序列建模能力的信号模式处理工具, 在语音处理中获得了广泛应用,特别适合于非线性、重复再现性不佳的信号的分析。
短句来源
     Clustering Algorithm of Self-Organizing Mapping Neural Networks can make input signal pattern of any dimensions into disperse mapping of one or two dimensions,and make this transform self-organizing topologically ordinal.
     通过自组织映射神经网络实现的聚类算法能将任意维数的输入信号模式转变为一维或二维的离散映射,以拓扑有序的方式自适应实现这个变换。
短句来源
  signal patterns
     Study of MRI signal patterns in retrobulbar lesions
     常见眼球后病变MRI信号模式的研究(附47例报告)
短句来源
     MRI Signal Patterns of Craniopharyngiomas
     颅咽管瘤的MRI信号模式
短句来源
     The artificial immune system(AIS) is depicted. Based on the hypermutation feature of human immune the artificial immune system hypermutation pattern recognition algorithm is designed. The pattern recognition results of an example with four simple signal patterns are compared with the AIS common algorithms and the AIS hypermutation algorithm.
     描述了人工免疫系统(Artificial Immune System,AIS)原理,在人工免疫系统算法的基础上,对免疫系统的超变异特性进行了算法设计,并针对四种简单信号模式对人工免疫系统普通模式识别算法和超变异模式识别算法进行了比较。
短句来源
     Objective To establish and recognize typical signal patterns (TSP) by analyzing cys-tometry data,and to verify their roles in real-time qualitative quality control.
     目的通过分析充盈和排尿期膀胱测压数据识别和建立典型信号模式(TSP),并验证其在实时定性质量控制中的作用。
短句来源
  signal model
     Based on the noise analysis and a ' signal model', a new algorithm called MBFA (Model-Based Filtering Algorithm) is presented,which uses 'signal model' to enlarge the signal and to eliminate the noise.
     基于噪声分析的结论,文中提出了一种基于信号模式的滤波算法(MBFA,Model-Based Filtering Algorithm),它利用信号模式/特征来增强信号、过滤噪声.
短句来源
  “信号模式”译为未确定词的双语例句
     The embedded communication signal source introduces a structure of DDS controlled by MCU,and can produce various signal modes such as FSK,LFM and MSK etc.
     嵌入式通信信号源采用MCU控制DDS芯片的结构,产生FSK、LFM(线性调频)和MSK等多种信号模式
短句来源
     3.0. Signal-to-noise ratio (SNR) was total signal intensity of sample to background value.
     3.0软件,数据量化使用总信号强度模式和信号中位值模式,总信号模式输出的样点信号强度与背景之比为SNR。
短句来源
     The Method of Surface EMG Pattern Recognition Based on AR Parameter Model and Clustering Analysis
     基于AR参数模型与聚类分析的肌电信号模式识别方法
短句来源
     A Study on Pattern Recognition of Flatness Signal Via BP Neural Network Based on Fuzzy Distance
     基于模糊距离的BP网络板形信号模式识别的研究
短句来源
     Study of Surface EMG Pattern Classification Based on Bayes Decision Technique
     基于Bayes决策理论的表面肌电信号模式分类的研究
短句来源
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  signal pattern
Nonetheless, in strictly sympatric species occurring in the same territory and living on the host plants of the same species, i.e., involved into acoustic interactions with each other, the signal pattern is always distinctly different.
      
But none of them can overcome the difficulty from multiformity of ECG signal pattern.
      
For this purpose, those ECGs are searched in an ECG database whose leads show greatest agreement with the signal pattern of the unknown ECG.
      
Conclusion: It can be seen from the results that the presented procedure which is based on signal pattern recognition is a new approach to deriving diagnostic information from the ECG signal at least for the diagnostic group of myocardial infarcts.
      
In contrast to the methods already available, the procedure is not based on an ever deeper splitting of the signal into individual attributes but uses procedures of signal pattern recognition in conjunction with ECG databases.
      
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  signal patterns
On the other hand, distinct differences in the signal patterns indicate conclusively that the forms investigated possess the rank of species.
      
Methods: The consideration underlying the procedure is that two ECGs whose leads show identical or very similar signal patterns indicate identical or at least very similar cardiological diagnoses.
      
MRI pattern of bone marrow in the 54 cases of acute leukemia showed abnormal signal patterns of femoral and pelvic marrow: (1) grade I (n=4),(2) grade II (n = 11), (3) grade III (n = 8), (4) grade IV (n=17), and (5) graded V (n=14).
      
A table-top prototype has been constructed that uses the enzyme malate dehydrogenase to recognize input signal patterns.
      
All cms lines showed similar but not identical restriction and hybridization signal patterns, readily distinguishable from those of fertile (N) cytoplasm.
      
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  signal model
The method consists of the calculation of a cross-correlation function of the signal at the receiver input and the scattered signal model constructed from the received signal by introducing the square-law time delay.
      
In this paper, analyzed firstly is the drawback of the extant popular ICA-fMRI method where the adopted signal model assumes the independence of spatial distributions of the signals and noise.
      
Then presented is a new fMRI signal model, which assumes the independence of temporal courses of signal and noise in a tiny spatial domain.
      
A Large-signal model for GaAs FET is derived based on its small-signalS parameters and DC characteristics.
      
Scalable perceptual audio representation with an adaptive three time-scale sinusoidal signal model
      
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Two new methods of spectral estimation, the Double-Maximum-Entropy It-erative Method and the Pseudo-Noise Iterative Method, are reported in this paper.Both arebased on a generalized model-the autoregressive-movingaverage model, where the Maximum Entropy Method (MEM) can not work properly. They provide betterperformance in spectral estimation than MEM,and can be used with lower orders.Like MEM these approaches can be used to treat input data of shorter length effectively.The algorithms are useful inall areas...

Two new methods of spectral estimation, the Double-Maximum-Entropy It-erative Method and the Pseudo-Noise Iterative Method, are reported in this paper.Both arebased on a generalized model-the autoregressive-movingaverage model, where the Maximum Entropy Method (MEM) can not work properly. They provide betterperformance in spectral estimation than MEM,and can be used with lower orders.Like MEM these approaches can be used to treat input data of shorter length effectively.The algorithms are useful inall areas where exact spectral estimation is required. Both the derivation and the numerical experiments are described in this paper.

本文提出两个新的功率谱估值方法——双最大熵迭代法及模拟噪声迭代法。它们均出发于比最大熵估值法更一般的信号模式:自回归——滑动平均模式,扩展了估值适应的范围,提高了估值准确度。它们都具有比最大熵估值法更好的估值特性,并只要求低得多的估值阶数。这两方法也继承了最大熵估值法的优点,能很好地处理短输入数据。它们适用于要求准确估测功率谱分布的场合。本文叙述了推导过程,并列举了部分计算机模拟试验结果。

This paper discusses problems about pattern recognition of malfunctional vibration signals of cycle-working machines, such as internal combustion engine, turbine engine, etc. and suggests a feature extraction method of higher-order origin moment that has better class separability and lower-dimensional feature vector after having compared the maximum between-sample distance and the minimum expected between-class distance of malfunction signal spectrum, then analysis the relationship between test times and error...

This paper discusses problems about pattern recognition of malfunctional vibration signals of cycle-working machines, such as internal combustion engine, turbine engine, etc. and suggests a feature extraction method of higher-order origin moment that has better class separability and lower-dimensional feature vector after having compared the maximum between-sample distance and the minimum expected between-class distance of malfunction signal spectrum, then analysis the relationship between test times and error recognition rate of the "vote way" sequential test that is easy to carry out and presents some results of calculation, finally, describes an analogous experiment on malfunction signal recognition of Speys-511 W engine, by the presented criteria and using TQ-16 digital computer, and it proved the resultsilable.

本文探讨周期性工作机器(如内燃机、涡轮机等)的故障振动信号的模式识别问题。推先,通过对故障信号的类内最大距离和类间最小期望距离的比较,提出了一种高阶原点矩特征提取法,该法具有类间分离性较好、特征向量维数较低的特点。然后,分析了一种易于实现的“表决法”序贯检验的检验次数与误判率间的关系,并给出了部分电算结果。最后,叙述了用本文的故障识别原则对Speys-511W发动机的故障识别在TQ-16数字计算机上作的模拟试验,其效果较好。

An approach to feature extraction and recognition of the characteristic signal is studied. The wavelet transform and its basic properties are discussed. An approach to feature extraction based on wavelet modulus maxima is suggested and a global distance function is presented. An application to fuel pressure waveform in a diesel engine is given as an example.

从设备诊断领域中特征信号模式识别的应用角度,探讨了基于小波变换的特征提取与识别方法.首先讨论了小波变换及其基本性质,进而探讨了基于小波变换模量极大点的特征抽取及基于模量极大点的幅值沿尺度s演变的特征提炼方法,并构造了全局的相似性度量,最后给出了分析实例.

 
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