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speechsignalprocessing
- 易克初-本书主要介绍了语音信号的时频处理、频谱分析方法、线性预测原理和语音信号的时频域表示、参数表示和矢量表示等等,涉及时域分布、小波理论和矢量量化等新兴新域-speech signal processing
The-FIR-filter-design
- (附带有文档,文档中有方案,有程序有结果,设计完后对一段语音进行处理)给定滤波器的规一化性能指标(参考指标,实际中依据每个同学所叠加噪声情况而定)通带截止频率wp=0.25*pi。 采用窗函数法设计低通、高通、带通型FIR滤波器,对叠加噪声前后的语音信号进行滤波处理,绘出滤波器的频域响应,绘出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化;在相同的性能指标下比较各方法的滤波效果,并从理论上进行分析-(With the document, document, program
shipinfenxi
- 时频分析方法提供了时间域与频率域的联合分布信息,清楚地描述了信号频率随时间变化的关系。-Time-frequency analysis method provides a time-domain and frequency domain, the joint distribution of information that clearly describes the signal frequency versus time relationships.
wavelet-methods-
- 讲述了现在机械故障诊断中用到的常用时频分析方法,如短时fft 魏格纳维尔分布 小波变换 HHT等,里面含有例子和详细说明,对初学者帮助很大。-Tells the now commonly used in mechanical fault diagnosis frequency analysis methods, such as short-time wavelet transform fft Wigner distribution HHT Louisville, etc., which cont
RLC-Series-resonance-characteristics
- 用实验方法测试RLC串联谐振电路的幅频特性曲线。当正弦交流信号的频率f改变时,电路的感抗、容抗随之而变.取电路电压U0作为响应,当输入电压Ui幅值维持不变时,在不同信号频率的激励下,测出U0之值,用LabVIEW程序完成频谱分析和滤波,变换等信号处理,即可测出RLC串联电路的谐振频率,-Amplitude-frequency characteristics experimentally tested RLC series resonant circuit curve. When changing
lmd
- 局部均值分解是由Smith提出的一种新的非线性和非平稳信号分析方法。由于LMD是依据信号本身的信息进行自适应分解的,产生的PF分量具有真实的物理意义,由此得到的时频分布能够清晰准确地反映出信号能量在空间各尺度上的分布规律。-Local mean decomposition is a new nonlinear and non-stationary signal analysis method proposed by the Smith. Since LMD information is base
matlab2
- 基于matlab的风机信号处理,包括时域频域各种分析方法-Fan-based signal processing matlab, including a variety of analytical methods and frequency domain
the-basic-analysis-of-speech
- 语音信号时频分析,包括语谱图,过零率,自编的自相关,以及最后用了三种方法(短时能量和过零率、谱熵法、Teager算子)进行端点检测,代码完整且测试通过-time and frequency domain analysis of speech signals,including spectrogram,rate of zerocrossing,autocorrelation.and three method of endpoint detection,especially the Teager
HHT
- 时频分析的希尔伯特-黄变换方法适用于非线性非平稳的信号分析。-Time-frequency analysis of Hilbert- Huang Transform method is applicable to non-linear non-stationary signal analysis.
SPWVD
- 视频分析方法中的平滑伪Wigner-Ville分布等效于对WVD的结果在时域和频域分别进行一次平滑滤波,有效抑制交叉干扰。-Video analysis methods smoothed pseudo Wigner-Ville distribution is equivalent to the result of the WVD smoothing once were in the time domain and frequency domain, inhibit cross-interfere
WignerVille
- 时频分析的Wigner-Ville分布方法是非平稳信号分析的有力工具,交叉项的存在在一定程度上影响其使用。-Powerful tool Wigner-Ville distribution method for time-frequency analysis of non-stationary signal analysis, the existence of cross terms to some extent affect its use.
hilbert-spectrom
- HHT就是先将信号进行经验模态分解(EMD分解),然后将分解后的每个IMF分量进行Hilbert变换,得到信号的时频属性的一种时频分析方法。-HHT is the first signal empirical mode decomposition (EMD decomposition), and then each IMF component decomposed Hilbert transform, frequency analysis method of time-frequency pro
RFCircuitDesign:TheoryandPractice
- 本书分析了普通低频电路和元件当工作频率升高到射频波段(通常指30 MHz ~ 4 GHz)时所遇到的困难和解决办法,并重点讨论了TEM(横电磁)波的传输特性及用微带线制成的各种射频器件的原理和方法。利用MATLAB数学工具软件,开发了相当数量的与本书所包含的内容和课题有关的模拟或解题软件供使用。(RF Circuit Design : Theory and Applications,Second Edition)