Description: 卫星图片识别,利用圆谐展开的方法进行旋转不变识别，有图例，是好几个程序的结合-Satellite Photo identification, the use of circular harmonic approach rotation invariant recognition, a legend. Several of the integration process Platform: |
Size: 278734 |
Author:fanrainsing |
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Description: This paper presents various applications of a nonlinear
adaptive notch filter which operates based on the concept
of an enhanced phase-locked loop (PLL). Applications of the filter
for online signal analysis for power systems protection, control and
power quality enhancement are presented. The proposed scheme
can be applied for signal analysis both under stationary and nonstationary
conditions. Based on digital time-domain simulations,
applications of the filter for a) sinusoidal waveform peak detection,
b) harmonic identification/detection, c) detection/extraction
of individual components of a signal, d) instantaneous reactive
current extraction, e) disturbance detection, f) noise reduction in
zero-crossings detection, and g) amplitude (phase) demodulation
for flicker estimation, are presented. Platform: |
Size: 153503 |
Author:yangyansky |
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Description: 功率谱分析，用于序列的周期识别。将一序列用不同周期的谐波分解,并用F检验进行周期检验。-Power spectrum analysis for identification of sequence cycles. One sequence will be different harmonic decomposition cycle and test cycle with F test. Platform: |
Size: 1024 |
Author:于浩 |
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Description: M序列信号算法仿真在系统辨识中有着很大的应用前景。多谐差相方法辨识精度很高有着很苛刻的要求，要求已知辨识参数个数已知并且需要整周截断。而M序列信号的测试方法没有这个方面的要求。其辨识未知模型时，可以用最小二乘算法观察辨识系统的精度来确定模型的阶次。本算法里面不但给出了用于M序列生成的本原多项式计算方法，同时编写了M序列信号的生成算法，并编写了相关辨识方法的算法。-M sequence signal simulation algorithm for identification in the system have great application prospects. Identification of multi-harmonic differential phase method with high precision has very stringent requirements, demand parameters are known to identify the number of known and need to cut off the whole week. The M sequence signal testing methods do not have this requirements. Its identification unknown model, you can observe the identification system using least-squares algorithm to determine the accuracy of the model order times. This algorithm is used which not only gives the M sequence generated by primitive polynomial method of calculation as well as prepare the M sequence signal generation algorithm, and the preparation of the relevant identification method algorithms. Platform: |
Size: 81920 |
Author:黄金峰 |
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Description: Methods for limitation and elimination of disturbances and harmonic pollution in the power system have been widely investigated. This problem rapidly intensifies with the increasing amount of electronic equipment (computers, radio set, printers, TV sets etc.). This equipment, a nonlinear load, is a source of current harmonics, which produce increase of reactive power and power losses in transmission lines. The harmonics also cause electromagnetic interference and, sometimes, dangerous
resonances. They have negative influence on the control and automatic equipment, protection systems, and other electrical loads, resulting in reduced reliability and availability. Moreover, nonlinear loads and non-sinusoidal currents produce non-sinusoidal voltage drops across the network impedanceis, so that non-sinusoidal voltages appears at several points of the mains. It brings out overheating of line,transformers and generators due to the iron losses. - Methods for limitation and elimination of disturbances and harmonic pollution in the power system have been widely investigated. This problem rapidly intensifies with the increasing amount of electronic equipment (computers, radio set, printers, TV sets etc.). This equipment, a nonlinear load, is a source of current harmonics, which produce increase of reactive power and power losses in transmission lines. The harmonics also cause electromagnetic interference and, sometimes, dangerous
resonances. They have negative influence on the control and automatic equipment, protection systems, and other electrical loads, resulting in reduced reliability and availability. Moreover, nonlinear loads and non-sinusoidal currents produce non-sinusoidal voltage drops across the network impedanceis, so that non-sinusoidal voltages appears at several points of the mains. It brings out overheating of line,transformers and generators due to the iron losses. Platform: |
Size: 2214912 |
Author:lakhdar |
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Description: Article_herra Distorted voltage and current waveforms is one of
the problems associated to electric power quality. Continuous
use of non-linear loads provokes the existence of voltage
waveforms with a high distortion. Thus, it is necessary to know
the responsible of this problem by means of the commonly
named distortion sources identification. In this paper, the
problem is analyzed through the harmonic power sign, with the
objective of knowing the sense of harmonic power flow
between source and one load in distorted systems. Nowadays, it
has already been established in the Literature that an analysis of
this kind does not solve the problem. Recently, new indices
have been introduced to evaluate a specific consumer distortion
level. In this paper, a comparative analysis of these indices is
carried out, having as reference a practical case. The results
obtained show that, in fact, these indices can help to valuate the
harmonic distortion, although none of them solve the question
definitively Platform: |
Size: 68608 |
Author:imedp |
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Description: 用粒子群优化算法辨识谐波信号中的各次谐波-Optimization algorithm for identification of each harmonic harmonic signal with particle swarm Platform: |
Size: 3072 |
Author:李琳达 |
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Description: 有借鉴意义哦，可以广泛的应用于数据预测及数据分析,在matlab环境中自动识别连通区域的大小,基于kaiser窗的双谱线插值FFT谐波分析，matlab编写的元胞自动机，包括脚本文件和函数文件形式，是学习PCA特征提取的很好的学习资料，是本科毕设的题目。-There are reference Oh, Can be widely used in data analysis and forecast data, Automatic identification in the matlab environment the size of the connected area, Dual-line interpolation FFT harmonic analysis kaiser windows, matlab prepared cellular automata, Including script files and function files in the form, Is a good learning materials to learn PCA feature extraction, The title of the commercial is undergraduate course yo. Platform: |
Size: 4096 |
Author:kqtufyqcm |
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Description: 包括调制，解调，信噪比计算，利用matlab GUI实现的串口编程例子，欢迎大家下载学习，滤波求和方式实现宽带波束形成，迭代自组织数据分析，旋转机械二维全息谱计算，基于kaiser窗的双谱线插值FFT谐波分析，预报误差法参数辨识-松弛的思想。- Includes the modulation, demodulation, signal to noise ratio calculation, Use serial programming examples matlab GUI implementation, Welcome to download the study, Filtering summation way broadband beamforming, Iterative self-organizing data analysis, Rotating machinery 2-d holographic spectrum calculation, Dual-line interpolation FFT harmonic analysis kaiser windows, Prediction Error Method for Parameter Identification- the idea of relaxation. Platform: |
Size: 7168 |
Author:zrepytffw |
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Description: 使用高阶累积量对MPSK信号进行调制识别，基于分段非线性权重值的Pso算法，FIR 底通和带通滤波器和IIR 底通和带通滤波器，最终的权值矩阵就是滤波器的系数，预报误差法参数辨识-松弛的思想，基于kaiser窗的双谱线插值FFT谐波分析。- Using high-order cumulants of MPSK signal modulation recognition, Based on piecewise nonlinear weight value Pso algorithm, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, The final weight matrix is ??the filter coefficient, Prediction Error Method for Parameter Identification- the idea of relaxation, Dual-line interpolation FFT harmonic analysis kaiser windows. Platform: |
Size: 9216 |
Author:hsgyncnc |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，用于建立主成分分析模型，阵列信号处理的高分辨率估计，包括调制，解调，信噪比计算，信号维数的估计，预报误差法参数辨识-松弛的思想，采用偏最小二乘法。- Dual-line interpolation FFT harmonic analysis kaiser windows, Principal component analysis model for establishing, High-resolution array signal processing estimates, Includes the modulation, demodulation, signal to noise ratio calculation, Signal dimension estimates, Prediction Error Method for Parameter Identification- the idea of relaxation, Partial least squares method. Platform: |
Size: 7168 |
Author:sinqr |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，信号维数的估计，预报误差法参数辨识-松弛的思想，微分方程组数值解方法，是信号处理的基础，最大似然（ML）准则和最大后验概率（MAP）准则，在matlab环境中自动识别连通区域的大小,相参脉冲串复调制信号。- Dual-line interpolation FFT harmonic analysis kaiser windows, Signal dimension estimates, Prediction Error Method for Parameter Identification- the idea of relaxation, Numerical solution of differential equations method, Is the basis of the signal processing, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Automatic identification in the matlab environment the size of the connected area, Complex modulation coherent pulse train signal. Platform: |
Size: 6144 |
Author:yjzjdrd |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，基于SVPWM的三电平逆变的matlab仿真，预报误差法参数辨识-松弛的思想，最小二乘回归分析算法，包含了阵列信号处理的常见算法，可以广泛的应用于数据预测及数据分析,有信道编码，调制，信道估计等，感应双馈发电机系统的仿真。- Dual-line interpolation FFT harmonic analysis kaiser windows, Based on SVPWM three-level inverter matlab simulation, Prediction Error Method for Parameter Identification- the idea of relaxation, Least-squares regression analysis algorithm, Contains a common array signal processing algorithm, Can be widely used in data analysis and forecast data, Channel coding, modulation, channel estimation, Simulation of doubly fed induction generator system. Platform: |
Size: 5120 |
Author:vtxairj |
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Description: 预报误差法参数辨识-松弛的思想，基于kaiser窗的双谱线插值FFT谐波分析，独立成分分析算法降低原始数据噪声，MIMO OFDM matlab仿真,感应双馈发电机系统的仿真，最终的权值矩阵就是滤波器的系数，基于欧几里得距离的聚类分析，包括随机梯度算法，相对梯度算法。- Prediction Error Method for Parameter Identification- the idea of relaxation, Dual-line interpolation FFT harmonic analysis kaiser windows, Independent component analysis algorithm reduces the raw data noise, MIMO OFDM matlab simulation, Simulation of doubly fed induction generator system, The final weight matrix is ??the filter coefficient, Clustering analysis based on Euclidean distance, Including stochastic gradient algorithm, the relative gradient algorithm. Platform: |
Size: 7168 |
Author:exgpsyzwp |
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Description: MIT人工智能实验室的目标识别的源码,真的是一个好程序，Pisarenko谐波分解算法。- MIT Artificial Intelligence Laboratory identification of the target source, Really is a good program, Pisarenko harmonic decomposition algorithm. Platform: |
Size: 6144 |
Author:fangfen |
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Description: This paper proposes an effective control scheme
for three-phase three-wire (3P3W) active power filter using
neural-based harmonic identification scheme. To achieve
excellent steady state and dynamic response, the feedback
control plus feed-forward control structures is utilized in the
proposed control algorithms. The steady-state error minimization
is achieved by the feedback loop, where the proportional
integral regulators were adopted in d-axis and
q-axis of the synchronous rotating reference frame synchronized
with grid voltages by using the phase-locked loop. The
adaptive linear combiners are utilized in the feed-forward
loop, which serves the purpose of load disturbance rejection,
and it significantly enhances dynamic performance of active
power filter (APF). Platform: |
Size: 1275904 |
Author:samir |
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Description: 预报误差法参数辨识-松弛的思想，基于kaiser窗的双谱线插值FFT谐波分析，独立成分分析算法降低原始数据噪声，MIMO OFDM matlab仿真,感应双馈发电机系统的仿真，最终的权值矩阵就是滤波器的系数，基于欧几里得距离的聚类分析，包括随机梯度算法，相对梯度算法。
- Prediction Error Method for Parameter Identification- the idea of relaxation, Dual-line interpolation FFT harmonic analysis kaiser windows, Independent component analysis algorithm reduces the raw data noise, MIMO OFDM matlab simulation, Simulation of doubly fed induction generator system, The final weight matrix is ??the filter coefficient, Clustering analysis based on Euclidean distance, Including stochastic gradient algorithm, the relative gradient algorithm.
Platform: |
Size: 5120 |
Author:刘会莉 |
Hits:
Search - harmonic identification