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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.)
- 2019-01-15 10:49:35下载
- 积分:1
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23825728MIMOcapacity
大规模MIMO信道容量仿真,研究毫米波预编码的可以相互探讨(Massive MIMO capacity)
- 2018-06-14 08:09:32下载
- 积分:1
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tuoyuanquxian
说明: 关于椭圆算法的,比较通俗易懂,供初学者用(Algorithm on the elliptical, more user-friendly for beginners with)
- 2008-11-24 00:17:52下载
- 积分:1
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仿真各种模型下常用水声信道
说明: 可以直接仿真各种模型下常用水声信道,包含Bellhop,Kraken等源代码(Simulating the basic underwater acoustic channel, including the code and theory of Bellhop, Kraken and so on.)
- 2020-06-09 11:55:50下载
- 积分:1
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CDMA程序
说明: 用matlab语言产生CDMA信号,并将信号解调(Generating CDMA signal)
- 2021-04-20 09:54:02下载
- 积分:1
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bt_v01
通信物理层处理,包括发射机和接收机,内容有前导处理,信道估计,信道编解码,BPSK、QPSK和8PSK调制与解调等。(Communication the physical treatment, including the transmitter and receiver, the content is leading processing, channel estimation, channel decoding, BPSK QPSK and eight PSK modulation and demodulation, etc
)
- 2021-03-28 16:09:10下载
- 积分:1
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HCF-spec160-(Device-Families-Command-Specificatio
HART Communication Foundation - Device Families Command Specification
- 2020-11-20 14:39:37下载
- 积分:1
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IRDisplayNokia
Library to use IR onto Display Nokia 3300
- 2013-01-31 05:53:11下载
- 积分:1
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ZHAO_OFDM
这个程序除了接收机同步、信道编码没有加入外,基本上反映了一个OFDM系统的特性:
1. qpsk/16qam/64qam映射、解映射
2. OFDM调制解调(循环前缀,FFT等)
3. 非整数采样时刻多径时延的多径信道
4. Rayleigh或者Rician多径信道
5. 信道的连续时变(非block fading)
6. 线性插值信道估计
7. FFT变换域插值信道估计(In addition to this program receiver synchronization, channel coding have not joined, the basically reflect the characteristics of an OFDM system: 1. Qpsk/16qam/64qam mapping, mapping solution 2. OFDM modulation and demodulation (cyclic prefix, FFT, etc.) 3. Non- integer sampling instant multi-path delay of multi-path channel 4. Rayleigh or Rician multipath channel 5. a continuous time-varying channel (non-block fading) 6. linear interpolation channel estimation 7. FFT transform domain interpolation channel estimation)
- 2010-03-04 22:12:43下载
- 积分:1
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MIMO-System-channel-capacity
mimo系统信道容量分析以及相关信道状态和功率分配的研究(mimo channel capacity analysis, and related to the channel state and power distribution)
- 2012-05-20 14:53:31下载
- 积分:1