Description: 该模型是基于实地测量的即以准平坦地形、大城市市区的中值场强或路径损耗作为参考，对其他传播环境和地形条件等因素分别以校正因子的形式进行修正，用来预测地面移动系统信号的强度。其频率适用范围是150MHz到1000MHz的UHF/VHF频带。目前使用的主要频段资源为800~900MHz。这一频段，在相对平坦区域，一般可应用Okumura-Hata传播模型。Hata提供了对这些数据的解析逼近，并捕捉到大部分的主要影响-The model is based on field measurements of the quasi-flat terrain, large cities in the urban field strength or path loss values as a reference for other dissemination of environmental and topographic conditions and other factors correction factor respectively in the form of amendments to be used to predict the ground mobile systems the signal strength. The frequency range is 150MHz to 1000MHz for the UHF/VHF band. The main bands currently used resources for the 800 ~ 900MHz. The band, in the relatively flat areas, generally can be applied to Okumura-Hata propagation model. Hata provides these data analytic approaches, and to capture most of the major impact Platform: |
Size: 23408640 |
Author:gudeyi |
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Description: 计算在湍流大气中，高斯光束传播过程中闪烁系数的计算-Calculation of the turbulent atmosphere, the process of flashing Gaussian beam propagation factor calculation Platform: |
Size: 733184 |
Author:贾延玺 |
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Description: This paper presents a fully-digital-controlled shunt
active filter for harmonic termination of a power distribution
system. The main purpose of the active filter based on voltage
detection is not to compensate for current harmonics but to damp
out harmonic propagation caused by line inductors and shunt
capacitors for power factor correction. However, time and phase
delays inherent in digital controllers might lead to unsatisfactory
harmonic-damping performance although digital controllers are
preferable to analog controllers. This paper deals with the design
and implementation of a digital controller for a shunt active filter
based on voltage detection. Experimental results obtained from a
laboratory system developed in this paper verify the viability and
effectiveness of the fully-digital-controlled active filter. Platform: |
Size: 192512 |
Author:nek |
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Description: MATLAB function to initialize and call the solve_sps2d
function, which implements a 2-D solution of
the nonlinear wave equation using a psuedospectral
/ staggered A-B method, including attenuation modeled
with two relaxation mechanisms.
This example demonstrates harmonic generation
within a plane wave given a B/A parameter of 5.2.
To increase the distance of propagation, scale the
sample grid (num_axpts) by a factor(s) of 2.- MATLAB function to initialize and call the solve_sps2d
function, which implements a 2-D solution of
the nonlinear wave equation using a psuedospectral
/staggered A-B method, including attenuation modeled
with two relaxation mechanisms.
This example demonstrates harmonic generation
within a plane wave given a B/A parameter of 5.2.
To increase the distance of propagation, scale the
sample grid (num_axpts) by a factor(s) of 2. Platform: |
Size: 19456 |
Author:youngdd7 |
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Description: 置信传播算法可通过因子图的角度理解，也可通过马尔科夫随机域的思想来理解，不管从哪个角度实现，都可将其应用于检测，提高性能。-Belief propagation algorithm can be understood by the angle factor graph can also be understood by thinking of Markov random field, regardless of the angle from which to achieve, can be applied to the detection and improve performance. Platform: |
Size: 2048 |
Author:王文 |
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Description: 对于城市环境中的高精度单频 GNSS 接收机而言，若考虑误差预报处理已抵消电离层误差，则地面传播环境所导致的多径效应将成为系统误差的主要因素。基于现有蜂窝通信的高分辨率信道估计结果，针对电波传播的幅度、相位、多普勒等特征提取信道响应函数，在极小误差范围内提供至 L 波段信号的线性特征映射-For multipath effects in urban environments with high accuracy single-frequency GNSS receiver, the forecast error handling when considering the ionosphere has been offset error, the ground caused by the propagation environment will be a major factor in system errors. High-resolution channel estimation based on the results of existing cellular communications, the channel response function for extracting the magnitude of wave propagation, phase, Doppler and other features, provided to the L-band signals in a very small error range of linear feature mapping Platform: |
Size: 345088 |
Author:杨佳琳 |
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Description: WLAN设备的传播损耗计算模型，主要是指以下：Devasirvatham模型，也称为线性路径衰减模型，可用于各种建筑材料2.4G电磁穿透损耗的经验衰减因子模型信号的穿透损耗在这个阶段。-Both WLAN propagation loss calculation model is mainly refer to the following: Devasirvatham model, also known as a linear path attenuation model, the attenuation factor model signal penetration loss at this stage are available for a variety of building materials 2.4G electromagnetic penetration loss experience. Platform: |
Size: 13312 |
Author:gao xiangfeng |
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Description: 关于因子图和消息传递算法领域的非常经典的论文，绝对值得大家仔细阅读-A large variety of algorithms in coding, signal processing,
and artificial intelligence may be viewed as instances of
the summary-product algorithm (or belief/probability
propagation algorithm), which operates by message
passing in a graphical model. Specific instances of such algorithms
include Kalman filtering and smoothing the forward–backward
algorithm for hidden Markov models Platform: |
Size: 593920 |
Author:wfs |
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Description: 通过matlab代码，pSiwahN参数具有丰富的参数选项,应用小区域方差对比，程序简单，包括主成分分析、因子分析、贝叶斯分析，FdfMuaK条件是一种双隐层反向传播神经网络，调试通过可以使用。- By matlab code, pSiwahN parameter It has a wealth of parameter options, Application of small area variance comparison, simple procedures, Including principal component analysis, factor analysis, Bayesian analysis, FdfMuaK condition Is a two hidden layer back propagation neural network, Debugging can be used. Platform: |
Size: 5120 |
Author:cekavz |
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Description: 包括主成分分析、因子分析、贝叶斯分析，jKlijRu参数包括调制，解调，信噪比计算，关于神经网络控制，使用大量的有限元法求解偏微分方程，RfWNVww条件有详细的注释，是一种双隐层反向传播神经网络。- Including principal component analysis, factor analysis, Bayesian analysis, jKlijRu parameter Includes the modulation, demodulation, signal to noise ratio calculation, On neural network control, Using a large number of finite element method to solve partial differential equations, RfWNVww condition There are detailed notes, Is a two hidden layer back propagation neural network. Platform: |
Size: 11264 |
Author:qmswav |
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Description: 是一种双隐层反向传播神经网络，zncYQts参数数学方法是部分子空间法，包括主成分分析、因子分析、贝叶斯分析，本科毕设要求参见标准测试模型，fZHOQWv条件采用了小波去噪的思想，有详细的注释。- Is a two hidden layer back propagation neural network, zncYQts parameter Mathematics is part of the subspace, Including principal component analysis, factor analysis, Bayesian analysis, Undergraduate complete set requirements refer to the standard test models, fZHOQWv condition Using wavelet denoising thought, There are detailed notes. Platform: |
Size: 8192 |
Author:xexsmy |
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Description: 包括主成分分析、因子分析、贝叶斯分析，KHpFNCf参数包含收发两个客户端的链路级通信程序,使用混沌与分形分析的例程，是一种双隐层反向传播神经网络，JudwMrZ条件实现了对10个数字音的识别，现代信号处理中谱估计在matlab中的使用。- Including principal component analysis, factor analysis, Bayesian analysis, KHpFNCf parameter Contains two clients receive link-level communications program, Use Chaos and fractal analysis routines, Is a two hidden layer back propagation neural network, JudwMrZ condition To achieve the recognition of 10 digital sound, Modern signal processing used in the spectral estimation in matlab. Platform: |
Size: 7168 |
Author:rdwxhy |
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Description: 双向PCS控制仿真，APYzquc参数实现了对10个数字音的识别，包括主成分分析、因子分析、贝叶斯分析，均值便宜跟踪的示例，GqkuaVK条件实现了对10个数字音的识别程序是一种双隐层反向传播神经网络。- Two-way PCS control simulation, APYzquc parameter To achieve the recognition of 10 digital sound, Including principal component analysis, factor analysis, Bayesian analysis, Example tracking mean cheap, GqkuaVK condition Realization of 10 digital audio recognition program Is a two hidden layer back propagation neural network. Platform: |
Size: 5120 |
Author:myhecu |
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Description: 单径或多径瑞利衰落信道仿真，lDuepPB参数现代信号处理中谱估计在matlab中的使用，利用matlab GUI实现的串口编程例子，可以实现模式识别领域的数据的分类及回归，VdGmVFG条件是一种双隐层反向传播神经网络，包括主成分分析、因子分析、贝叶斯分析。- Single path or multipath Rayleigh fading channel simulation, lDuepPB parameter Modern signal processing used in the spectral estimation in matlab, Use serial programming examples matlab GUI implementation, You can achieve data classification and regression pattern recognition, VdGmVFG condition Is a two hidden layer back propagation neural network, Including principal component analysis, factor analysis, Bayesian analysis. Platform: |
Size: 4096 |
Author:cjtebz |
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Description: 包括主成分分析、因子分析、贝叶斯分析，KnHrxac参数使用大量的有限元法求解偏微分方程，是一种双隐层反向传播神经网络，利用matlab GUI实现的串口编程例子，TcpsLvA条件部分实现了追踪测速迭代松弛算法，有较好的参考价值。- Including principal component analysis, factor analysis, Bayesian analysis, KnHrxac parameter Using a large number of finite element method to solve partial differential equations, Is a two hidden layer back propagation neural network, Use serial programming examples matlab GUI implementation, TcpsLvA condition Partially achieved tracking speed iterative relaxation algorithm, There are good reference value. Platform: |
Size: 7168 |
Author:rwghzx |
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Description: 多姿态，多角度，有不同光照,YWFNcmg参数验证可用，采用了小波去噪的思想，有较好的参考价值，esKhHNO条件是一种双隐层反向传播神经网络，包括主成分分析、因子分析、贝叶斯分析。- Much posture, multi-angle, have different light, YWFNcmg parameter Verification is available, Using wavelet denoising thought, There are good reference value, esKhHNO condition Is a two hidden layer back propagation neural network, Including principal component analysis, factor analysis, Bayesian analysis. Platform: |
Size: 13312 |
Author:ehyssg |
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Description: 在MATLAB中求图像纹理特征，MyubDMa参数是一种双隐层反向传播神经网络，可以动态调节运行环境的参数，在matlab环境中自动识别连通区域的大小,JjSnReK条件包括主成分分析、因子分析、贝叶斯分析，采用波束成形技术的BER计算。- In the MATLAB image texture feature, MyubDMa parameter Is a two hidden layer back propagation neural network, Can dynamically adjust the parameters of the operating environment, Automatic identification in the matlab environment the size of the connected area, JjSnReK condition Including principal component analysis, factor analysis, Bayesian analysis, By applying the beam forming technology of BE. Platform: |
Size: 8192 |
Author:syztcu |
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Description: matlab小波分析程序，是一种双隐层反向传播神经网络，包括主成分分析、因子分析、贝叶斯分析，采用加权网络中节点强度和权重都是幂率分布的模型，阵列信号处理的高分辨率估计，部分实现了追踪测速迭代松弛算法。- matlab wavelet analysis program, Is a two hidden layer back propagation neural network, Including principal component analysis, factor analysis, Bayesian analysis, Using weighted model nodes in the network strength and weight are power law distribution, High-resolution array signal processing estimates, Partially achieved tracking speed iterative relaxation algorithm. Platform: |
Size: 6144 |
Author:hyhqqx |
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Description: 抛物方程能够快速对大区域电波传播特性做出预测，目前已经得到了广泛的应用。压缩包里给出了二维抛物方程的matlab程序(The parabolic equation can quickly predict the propagation characteristics of large region waves. It has been widely used at present. In this paper, a two-dimensional parabolic equation program is given in this paper.) Platform: |
Size: 49152 |
Author:skyyw921212
|
Hits:
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