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tongxinxitong
通过simulink仿真工具架构的SCPC通信系统，基本架构为卫星通信系统，包括PCM编译码器、调制器、成型滤波、变频器、低噪声功率放大器、各类天线、模拟自由空间损耗、模拟等效噪声温度、卷积编译码器(The basic architecture of SCPC communication system based on Simulink simulation tool is satellite communication system, including PCM compiler, modulator, shaping filter, frequency converter, low noise power amplifier, all kinds of antennas, analog free space loss, analog equivalent noise temperature, convolutional compiling code.)
- 2018-05-17 08:12:35下载
- 积分：1
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88988898
一个GPRS开发的例子，稍做修改，就可用在自己的项目中(The development of a GPRS example, some small modifications, you can use in their own projects)
- 2008-12-25 16:51:58下载
- 积分：1
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Taylor_3D_SUMU_DR_Capacity
3D MIMO下，比较了单用户和多用户下Taylor简化的容量(In 3D MIMO, the simplified capacity of Taylor under single-user and multi-user comparison is compared)
- 2018-01-18 15:18:01下载
- 积分：1
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cc2430tocc2530migrationguide
application node 071 cc2430 to 2530 immigigration guide
- 2010-01-23 21:49:50下载
- 积分：1
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h5gSSS
5G辅同步信号SSS的m序列的matlab生成代码(Generate the secondary synchronization signal symbols (BPSK) for a given cell ID)
- 2019-04-30 17:40:49下载
- 积分：1
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MIMO信道仿真
说明： 多输入多输出(Multiple-Input Multiple-Output)技术是无线移动通信领域智能天线技术的重大突破。该技术能在不增加带宽的情况下成倍地提高通信系统的容量和频谱利用率，是新一代移动通信系统必须采用的关键技术。(Multiple input multiple output (MIMO) technology is a major breakthrough of smart antenna technology in the field of wireless mobile communication. This technology can double the capacity and spectrum efficiency of the communication system without increasing the bandwidth. It is a key technology that must be adopted in the new generation of mobile communication system.)
- 2021-04-05 00:31:00下载
- 积分：1
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dapsk_in_frequency
通信系统中的最新的分块差分调制技术的源码(Communication systems up-to-date block differential modulation source)
- 2007-12-27 14:02:17下载
- 积分：1
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4G, LTE-Advanced Pro and The Road to 5G
本书描述了4G LTE / 5G NR 无线接入技术。(This book describes LTE, developed in 3GPP and providing true fourth-generation (4G) broadband mobile access, as well as the new radio-access technology
3GPP is currently working on. Together, these two technologies will provide 5G wireless access.)
- 2018-07-25 13:33:27下载
- 积分：1
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bpsk_Awagn_Rayleigh
说明： 实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m
Steps for simulation:
1] Run jakesmodel.m first
2] Then run bpsk_spread.m .
3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented
4] The resulting performance is stored in BER_awgn.
5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file.
6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable.
7] Run the simulation.
To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
>>semilogy([1:8],BER_awgn(1:8), g* )
hold on
semilogy([1:8],BER_ray(1:8), -.b* )
hold on
grid on )
- 2010-03-22 23:11:17下载
- 积分：1
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不同信号
不同信号的循环谱（AM,BPSK,BFSK,DME等）可以直接使用，来分析信号的循环平稳特性。(The cyclic spectrum of different signals (AM, BPSK, BFSK, DME, etc.) can be directly used to analyze the cyclostationary characteristics of signals.)
- 2018-05-02 15:39:36下载
- 积分：1
