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prog6
Code division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, which is where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this to be achieved without undue interference between the users CDMA employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code). Each user in a CDMA system uses a different code to modulate their signal. Choosing the codes used to modulate the signal is very important in the performance of CDMA systems. The best performance will occur when there is good separation between the signal of a desired user and the signals of other users.
- 2014-09-18 19:33:27下载
- 积分：1
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weibuer
威布尔分布的参数估计，计算速度快，准确度高，值得深究(Parameter Weibull distribution estimates, calculation speed, high accuracy, worth studying)
- 2015-03-31 15:50:25下载
- 积分：1
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khyarunb
是机器学习的例程，构成不同频率的调制信号，有详细的注释，在MATLAB中求图像纹理特征，包括调制，解调，信噪比计算，利用自然梯度算法，可实现对二维数据的聚类，有PMUSIC 校正前和校正后的比较。
( Machine learning routines, Constituting the modulated signals of different frequencies, There are detailed notes, In the MATLAB image texture feature, Includes the modulation, demodulation, signal to noise ratio calculation, Use of natural gradient algorithm, Can realize the two-dimensional data clustering, A relatively before correction and after correction PMUSIC.
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- 2016-04-12 09:27:32下载
- 积分：1
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WMR
this folder contains a matlab code for wmr coding.
- 2013-08-05 13:33:53下载
- 积分：1
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intro_Matlab
this document contain
- 2013-04-23 18:10:51下载
- 积分：1
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Ku
说明： Ku波段低相噪频率源的研制，KU波段下行转发器发射功率大（大约在100W以上），能量集中，方便接收，，，(the research about Ku)
- 2010-02-08 09:49:35下载
- 积分：1
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Encoder
used to encrypt the input image using RAS algorithm
- 2012-11-25 22:32:07下载
- 积分：1
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adaboost-and-rbf
随机森林算法在图像特征分类回归中的应用，通过结合神经网络进行更好的特征数据处理(Application of random forest algorithm in image classification and regression, better features by combining neural networks data processing)
- 2015-10-14 20:51:30下载
- 积分：1
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power-spectrum-estimation
分别使用MVDR、Root-Music和ESPRIT三种方法对信号频率估计进行仿真实验，其中噪声为复正弦加性白噪声，给出正弦信号频率的估计值。(Using MVDR, Root- Music and ESPRIT three methods to estimate the signal frequency simulation experiment respectively, which is suitable for complex sinusoidal additive white noise noise, sine signal frequency estimate is given.)
- 2015-10-21 21:02:05下载
- 积分：1
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pv_array
光伏电池阵列模型，用于多电池的光伏发电仿真模型的建立(Photovoltaic array model for multi-cell photovoltaic Simulation Model)
- 2013-09-20 22:36:43下载
- 积分：1
