Description: Prony算法工具箱。Prony方法是用一组指数项的线性组合来拟和等间距采样数据的方法,可以从中分析出信号的幅值、相位、阻尼因子、频率等信息。considerations including data preprocessing, model order selection, model order selection criteria, signal subspace selection, signal and noise separation, root inspection and assessing residuals. The PTbox provides flexibility to compare and display analysis results simultaneously for several parameter variations.-Prony algorithm toolbox. Prony method is used for a group of items to be linear combination of distance and other data sampling methods be able to analyze the signal amplitude, phase, the damping factor, frequency, and other information. Considerations including data preprocessing , model order selection, model order selection criteria. signal subspace selection, signal and noise separation, root inspection and assessing residuals. The P Tbox provides flexibility to compare and displ ay analysis results simultaneously for severa l parameter variations. Platform: |
Size: 702464 |
Author:张恩理 |
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Description: 用MUSIC算法作谐波恢复，该算法精确度非常高，能够分辨0.013Hz的频率分量。-Using MUSIC algorithm for harmonic retrieval, the algorithm accuracy is very high, to distinguish the frequency components 0.013Hz. Platform: |
Size: 1024 |
Author:yang zhiming |
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Description: 本代码的方法是借助旋转不变技术估计信号参数(Estimation of Signal Parameters via Rotational Invariance Techniques)，现已成为谐波恢复（即正弦波个数及频率估计）的一种主要特征分解法。-This code is to help the estimated ESPRIT signal parameters (Estimation of Signal Parameters via Rotational Invariance Techniques), has now become the harmonic retrieval (that is, the number and frequency sine wave estimated) of one of the main characteristics of decomposition. Platform: |
Size: 1024 |
Author:胡建红 |
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Description: 最小范数法实现谐波信号的频率估计，估计精度高-Minimum norm method to achieve the frequency estimation of harmonic signals, it is estimated that high-precision Platform: |
Size: 1024 |
Author:曹红丽 |
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Description: 变频驱动主要使用的驱动波形主要有SPWM和SVPWM两种。SPWM原理简单、实现容易,是现在使用最广的一种变频驱动波形。但其有一个致命的弱点是其电源利用率不高（只有86％）、谐波成分大。因此,在新近开发的产品中其应用逐渐被性能优异的SVPWM所取代。SVPWM是一种电压利用率、低谐波成分的变频驱动波形,还有开关次数少、功率管功耗小等特点。同时,SVPWM还能很好的结合矢量控制算法、以最大限度的发挥设备的性能。因此被越来越多的变频设备所采用。-The main use of variable frequency drive drive waveform SPWM and SVPWM are mainly two. SPWM principle of simple, easy, is now the most widely used as a variable frequency drive waveform. But there is a fatal weakness is its power utilization is not high (only 86), large harmonic components. Therefore, in the newly developed products in its application performance is gradually replaced by SVPWM. SVPWM is a voltage utilization, low-harmonic component waveform of variable frequency drive, there are fewer switches, power control features such as power consumption small. At the same time, SVPWM also a very good combination of vector control algorithm to maximize the performance of the play equipment. Therefore increasingly being used by the inverter equipment. Platform: |
Size: 174080 |
Author:wangwang |
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Description: 利用IIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db-IIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuation ≥ 30db Platform: |
Size: 1024 |
Author:dicunxia |
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Description: 基于最小二乘法和奇异值-总体最小二乘法(SVD-TLS)的
ARMA模型谐波频率估计
-Based on the least square method and singular value- the overall least squares (SVD-TLS) of the ARMA model of harmonic frequency estimation Platform: |
Size: 1024 |
Author:wangcheng |
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Description: 基于普通最小二乘法的ARMA模型谐波频率估计
-Ordinary least squares method based on the ARMA model of harmonic frequency estimation Platform: |
Size: 1024 |
Author:wangcheng |
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Description: 信号与系统实验源代码
包括：实验一 周期信号的谐波逼近，幅频相频分析；实验二 simulink信号的抽样和内插； 实验三 GUIDE二阶状态轨迹的显示；实验四 Wav信号的波形分析及频谱分析-Signals and systems including source code of the experiment: The experiment of a periodic signal of the harmonic approximation, the amplitude-frequency phase-frequency analysis experiment II simulink signal sampling and interpolation experimental GUIDE second-order three-state trajectory display experiment four Wav signal waveform analysis and spectral analysis Platform: |
Size: 204800 |
Author:logicmd |
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Description: 使用labview7.1编写的一个简单的虚拟电能质量检测仪，监测参数包括电压偏差、频率偏差、频域谐波分析、电压波动、三相不平衡度等。-Labview7.1 prepared using a simple detector of virtual power quality, monitoring parameters, including voltage deviation, frequency deviation, frequency-domain harmonic analysis, voltage fluctuations, such as three-phase imbalance. Platform: |
Size: 61440 |
Author:robyluo |
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Description:
在高阶谱分析工具箱是一个M文件集合实施了多种先进的信号处理算法的频谱估计，polyspectral估计，时频分布计算，并包含许多实际应用如时延估计，谐波恢复，参数估计的Volterra（非线性）模型，以及自适应线性预测。其他潜在的应用包括音响，生物医学，经济学，地震勘探，无损检测，海洋学，等离子体物理，雷达，声纳，语音等-The Higher-Order Spectral Analysis Toolbox is a collection of M-files that implement a variety of advanced signal processing algorithms for spectral estimation, polyspectral estimation, and computation of time-frequency
distributions, with applications such as time delay estimation, harmonic retrieval, parameter estimation of Volterra (nonlinear) models, and adaptive linear prediction. Other potential applications include acoustics, biomedicine, econometrics, exploration seismology, nondestructive testing, oceanography, plasma physics, radar, sonar, speech etc. Platform: |
Size: 2881536 |
Author:chenpan |
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Description: 对噪声信号中的正弦信号，通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计，信号源是： 其中， ， ， ； 是高斯白噪声，方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计，独立运行20次，记录各个方法的估计值，计算均值和方差； 2、增加噪声功率，观察和分析各种方法的性能。-Sinusoidal signal in the noise signal through the Pisarenko harmonic decomposition method, Music algorithms and Esprit frequency estimation algorithm, the signal source is: where,,, a Gaussian white noise, variance. 128 data samples used to estimate. 1, with three kinds of frequency estimation algorithm, run independently 20 times, record the estimated value of each method to calculate the mean and variance 2, the increase in noise power, observation and analysis of the performance of various methods. Platform: |
Size: 2048 |
Author:gab |
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Description: 利用Blackman窗函数对工频信号进行加窗FFT后校正计算出基波和谐波的幅值、频率和初始相角。-Blackman window function using frequency signal windowed FFT is calculated after the correction of fundamental and harmonic amplitude, frequency and initial phase angle. Platform: |
Size: 1024 |
Author:宋知用 |
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Description: Kalman filter, 2n_2n kalman filter which use for separate harmonic frequency in a continuous signal which include noise.-Kalman filter, 2n_2n kalman filter which use for separate harmonic frequency in a continuous signal which include noise. Platform: |
Size: 1024 |
Author:reza |
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Description: fft分析程序，可以完成对输入信号的谐波分析，得到谐波的频率和幅值-fft analysis program, to be completed on the input signal harmonic analysis, harmonic frequency and amplitude Platform: |
Size: 1024 |
Author:baozhida |
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Description: 我学习信号系统时原创的用matlab实现的谐波提取 ，两种方案，先分频再提基波，或者利用带通滤波器-I study the signal system to achieve an original harmonic extraction using matlab, the two programs, the first frequency and then Ti Jibo, or the use of band-pass filter
Platform: |
Size: 3072 |
Author:刘庭薇 |
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Description: 恒频恒压(CVCF)逆变电源的输出电压波形质量是衡量其性能的重要指标之一。文章采用一种重复控制和双闭环控制相结合的电压波形控制策略，以重复控制器提高逆变电源输出电压的稳态精度，减小总谐波畸变率；以双闭环控制器达到较快的动态响应速度。该方案在一台采用TMS320F240 DSP控制芯片的50 Hz三相PWM逆变器上得到验证。-Constant voltage constant frequency (CVCF) Inverter output voltage waveform quality is an important measure of its performance indicators. Paper using a repetitive control and the combination of double closed loop control voltage waveform control strategy to improve the repetitive controller output voltage inverter steady-state accuracy and reduce total harmonic distortion to achieve a faster dual-loop controller dynamic response speed. The program uses TMS320F240 DSP in a 50 Hz phase control chip PWM inverter has been to verify. Platform: |
Size: 405504 |
Author:Jew |
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Description: 总体最小二乘方法的谐波频率估计。线性参数估计问题广泛存在于众多科学与工程学科，如信号处理、自动控制、系统理论、物理、化学工程、统计学、经济学、生物学、医学和军事工程等。最小二乘方法是最常用的线性参数估计方法。-Total least squares method of harmonic frequency estimation. Linear parameter estimation problem is widespread in many scientific and engineering disciplines, such as signal processing, automatic control, systems theory, physics, chemical engineering, statistics, economics, biology, medicine and military engineering. Least-squares method is the most common linear parameter estimation methods. Platform: |
Size: 173056 |
Author:chenxiaocen |
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