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asd
航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency
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- 2011-07-13 11:21:08下载
- 积分：1
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Attachments_2012_10_19
Automatic navigation system
- 2012-10-19 01:29:11下载
- 积分：1
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MATLABsimulationincommunication
MATLAB仿真软件在通信系统仿真中的应用(MATLAB simulation software in the communication system simulation)
- 2009-11-24 06:55:18下载
- 积分：1
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communication
一份红外通讯的编码设计,已经经过实验，支持一对多。(Encoding of an infrared communication design, and after the experiment, to support one to many.)
- 2012-04-11 11:42:38下载
- 积分：1
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lunwen
扩频通信中pn序列码的仿真与研究，m序列，M序列，gold序列(Pn sequence spread spectrum communication and research simulation codes, m series, M series, gold sequence)
- 2011-05-16 14:41:00下载
- 积分：1
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yidong-
本文根据移动通信衰落信道的工作机理,
基于加性高斯白噪声信道( AWGNChannel) 、
落信道( RayleighFading Channel) 、莱斯衰落
icianFadingChannel) 的仿真模型, 并利用M
行了衰落信道的误比特率性能的仿真分析。(Based the working mechanism of the mobile communications fading channel,
Based on the additive white Gaussian noise channel (AWGNChannel),
The down channel (RayleighFading Channel), Rice fading
icianFadingChannel) simulation model, and the use of M
Line simulation analysis of the the fading channel bit error rate performance.)
- 2013-05-03 09:26:58下载
- 积分：1
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3Leach
横重要的leach 协议哦对你有很大的帮助
(Oh cross important leach agreement)
- 2016-01-27 11:25:01下载
- 积分：1
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cyclostationary_dec
认知无线电中基于BPSK循环自相关函数的信号检测，时域上的经典算法，许多论文引用的方法。(signal dection based on cyclostationary of BPSK in Congnitive Radio)
- 2011-08-04 20:46:03下载
- 积分：1
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Consensus-and-Cooperation-
分布式一致性协议，很适合刚接触一致性的新手(The consistency of distributed agreement, it is very suitable for new to novices)
- 2021-03-10 15:39:26下载
- 积分：1
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yapnb
采用加权网络中节点强度和权重都是幂率分布的模型，双向PCS控制仿真，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。( Using weighted model nodes in the network strength and weight are power law distribution, Two-way PCS control simulation, PV modules contain, MPPT module, BOOST module, inverter module.)
- 2017-05-15 12:45:04下载
- 积分：1
