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MIMO_Capacity
MIMO指多输入多输出，MIMO技术大致可以分为两类：发射/接收分集和空间复用。传统的多天线被用来增加分集度从而克服信道衰落，具有相同信息的信号通过不同的路径被发送出去，在接收机端可以获得数据符号多个独立衰落的复制品，从而获得更高的接收可靠性。这种技术往往要结合多天线技术，而多天线技术在移动通信中得到了广泛的研究。(MIMO refers to Multiple Input Multiple Output, MIMO technology can be broadly classified into two categories: transmit/receive diversity and spatial multiplexing. Traditional multi-antenna was used to increase the degree of diversity to overcome channel fading, the signal with the same information through different paths have been sent in the receiver-side data symbols can be multiple independent copies of the decline, which was higher reception reliability. This technology often have to combine multi-antenna technology, and multi-antenna technology in mobile communication has been widely studied.)
- 2008-06-01 20:33:36下载
- 积分：1
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简易智能家居
简易智能家居,光采集,湿温度采集,自动浇花,总机控制
/*************************
* 简易智能家居 *
* 总机控制模块 *
* 2016/4/10 *
*************************/(Easy smart home, light collection, wet temperature acquisition, automatic watering, switchboard control
Simple Smart Home
Switchboard Control Module)
- 2018-05-03 17:03:04下载
- 积分：1
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Cross-layer-
一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)
- 2013-12-19 13:24:17下载
- 积分：1
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MQAM_4096QAM
说明： 4098QAM编码在AWGN信道下误码率性能与Eb/N0（信噪比）的关系(The performance of 4096QAM at AWGN channel: BER~Eb/N0)
- 2020-08-30 22:58:11下载
- 积分：1
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1
说明： 跨平台即时通信技术在无线网络的研究与实现。(Cross-platform instant messaging technology in the wireless network and its implementation.)
- 2010-04-01 10:36:47下载
- 积分：1
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ofdm
orthogonal frequency demod
- 2019-03-05 05:04:44下载
- 积分：1
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2
说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions:
(1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing;
(2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape;
(3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)
- 2021-01-23 19:48:44下载
- 积分：1
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a
说明： turbo c 绘制船并裁剪，感觉不错，可以使用，你值得拥有(turbo c plotted ship and cutting, feeling good, you can use, you deserve)
- 2013-12-30 09:33:04下载
- 积分：1
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ACO-OFDM
ACO-OFDM sdakldjas seuekdsjakdnskd
- 2021-04-13 22:58:55下载
- 积分：1
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alalog
说明： Goertzel算法是DTMF信号检测的核心,它利用二极点的IIR滤波器计算离散傅立叶变换值,快速有效的提取输入信号的频谱(Goertzel algorithm is the core of DTMF signal detection. It uses the two-pole IIR filter to calculate the discrete Fourier transform value, and extracts the spectrum of input signal quickly and effectively.)
- 2019-03-26 12:48:59下载
- 积分：1
