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carrier-modulation
多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流,从而使子数据流具有低得多的传输比特速率,利用这些数据分别去调制若干个载波。所以,在多载波调制信道中,数据传输速率相对较低,码元周期加长,只要时延扩展与码元周期相比小于一定的比值,就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现,如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中,OFDM可以抵抗多径干扰,是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )
- 2014-11-26 20:06:23下载
- 积分:1
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matlabfirlvbo
matlab对语音信号进行滤波,使用fir低通滤波器(the speech signal matlab filter using FIR low-pass filter)
- 2013-04-30 08:53:14下载
- 积分:1
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3C
说明: 倒立摆试验用matlab模拟,PID处理器(simulated ann)
- 2014-08-30 15:19:21下载
- 积分:1
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81404610Tsai
根据图像的世界坐标和在照片中的坐标,计算出摄像机的各个参数(Camara Calibration )
- 2013-04-12 17:57:03下载
- 积分:1
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yushizhen
介绍了国外应用在数字电视发射机中的自适应预失真技术,着重介绍了笛卡尔环的工作原理、高功放产生互调失真的原理以及预失真的工作原理.(The principles of foreign applications in the digital TV transmitter adaptive pre-distortion technology, focuses on the working principle of Descartes ring, high power amplifier intermodulation distortion, as well as the working principle of pre-distortion.)
- 2013-05-20 21:52:49下载
- 积分:1
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kpid
根据轮式机器人速度稳定控制系统,建立速度、电流双闭环控制系统。轮式机器人的速度与电流双闭环控制系统。(According to the speed stabilization control system of wheeled robot, the speed and current double closed-loop control system is established. Double Closed Loop Control System of Speed and Current for Wheeled Robot)
- 2020-06-16 15:20:02下载
- 积分:1
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NVIDIA_CUDA_Programming_Guide_2.3
关于cuda计算,我认为很好。NVIDIA_CUDA_Programming_Guide_2.3.pdf(Calculated on the cuda, I think very well. NVIDIA_CUDA_Programming_Guide_2.3.pdf)
- 2010-10-11 12:56:59下载
- 积分:1
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FSK
说明: 实现FSK调制的详细过程,对学习很有帮助,必须顶(Detailed process to achieve FSK modulation, useful for learning to be top)
- 2011-04-16 10:56:49下载
- 积分:1
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matlab-2012b-install-under-Windows
Matlab 2012b在Windows7/XP操作系统下安装的图文详解,包含密钥等解决方案。(Graphic Detailed Matlab 2012b under Windows7/XP operating system installed, containing the key solutions.)
- 2014-09-01 15:38:47下载
- 积分:1
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ofdm
ofdm的matlab仿真实现 包含OFDM的基本功能(ofdm matlab simulation realization of the basic features include OFDM)
- 2015-04-16 10:31:58下载
- 积分:1