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OFDM
OFDM,实际上OFDM是MCM Multi-CarrierModulation,多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开,这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。在向B3G/4G演进的过程中,OFDM是关键的技术之一,可以结合分集,时空编码,干扰和信道间干扰抑制以及智能天线技术,最大限度的提高了系统性能。(OFDM)
- 2010-05-21 14:56:54下载
- 积分:1
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Wiener-filter
利用计算机编程实现加性干扰信号的维纳滤波(Use of computer programming plus interference signal Wiener filter)
- 2011-07-07 16:10:28下载
- 积分:1
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Matlab-program-manual
Matlab编程必备手册,包含编程格式规范,程序控制结构和实例,适用于初学者。(Matlab programming required manual contains programming format specification, program control structure and examples for beginners.)
- 2013-11-08 09:41:53下载
- 积分:1
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TextViewStubActivity
TextViewStubActivity extends Activity.List of "line number" entries, which are the contents of {@code LineNumberTable} attributes.
- 2014-02-20 11:59:53下载
- 积分:1
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vectorcontrolforacmotors
介绍电机控制的基本原理,矢量控制方法,永磁同步电机无刷直流电机的设计,矢量控制,弱磁控制原理及方法,以及转矩脉动仿真等等(Introduced the basic principles of motor control, vector control, permanent magnet synchronous motor brushless DC motor design, vector control, weakening control principle and method, and the torque ripple simulation, etc.)
- 2011-01-10 16:43:36下载
- 积分:1
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PLLSim
说明: 二阶锁相环Matlab仿真代码,如入两路信号和信噪比,输出锁相以后的信号。可以仿真初始频差,和频率斜升的情况(second-order PLL Matlab simulation code, such as two-way signals and signal to noise ratio, the output signal after the lock-in. Simulation can initial frequency difference, and frequency ramp-up of)
- 2006-03-21 21:06:29下载
- 积分:1
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CSMNN_DSP2_realization
sliding mode control 5
- 2012-07-08 21:39:51下载
- 积分:1
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LMSDCT
运用LMSDCT算法对噪声信号进行处理,提取出有用的信号(LMS algorithm using the noise signal processing, to extract useful signal)
- 2011-09-16 12:47:42下载
- 积分:1
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Broadband_FWM_products
微环级联四波混频,基于FFT算法,在2013b环境下可运行(cascaded FWM in microring )
- 2020-07-10 16:18:55下载
- 积分:1
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GMSK
在MATLAB上实现GMSK/GFSK调制解调,能输出频率轨迹和相位轨迹图,以及调制解调的频谱图(Achieve GMSK/GFSK modem on MATLAB, the output frequency can track and phase trajectories, and spectrum modulation and demodulation)
- 2015-06-11 18:45:26下载
- 积分:1