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RS485
说明： 阐述了RS-485总线规范，描述了影响RS-485总线通信速率和通信可靠性的三个因素，同时提出
了相应的解决方法并讨论了总线负载能力和传输距离之间的具体关系。 (Described the RS-485 bus specification, describes the impact of RS-485 bus communication speed and communication reliability of the three factors, while the corresponding solutions presented and discussed the bus load capacity and the specific relationship between the transmission distance.)
- 2010-04-04 11:51:46下载
- 积分：1
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OFDM
给出了OFDM在卫星通信中的系统框图并
在Simulink中仿真实现，利用改进的CMA恒模算法进行盲均衡处理，来去除时变卫星信道对信号的影响,基于4阶累积量的方法
将OFDM信号与其他调制类型信号区分开来(OFDM is given in the satellite communication system block diagram and Simulation in Simulink using the modified constant modulus algorithm CMA for blind equalization, to remove the time-varying satellite channel on the signals, based on 4-order cumulant method OFDM signals and other types of signal modulation to distinguish)
- 2020-12-02 20:19:26下载
- 积分：1
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zhushui
注水算法，经典注水算法在MIMO自适应资源分配中功率分配的最优算法(water filling algorithm)
- 2018-04-15 19:55:58下载
- 积分：1
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serial_test
完整的串口编程实例，MSCOMM控件编程(A Complete Example of Serial Port Programming)
- 2020-06-16 10:20:01下载
- 积分：1
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卫星通信中数字调相信号调制方式识别方法研究
针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)
- 2020-06-21 09:20:02下载
- 积分：1
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lijing
说明： 基于Simulink的DPSK的通信系统仿真
Simulink 是MATLAB提供的实现动态系统建模和仿真的一个软件包，它让用户把精力从编程转向模型的构造，为用户省去了许多重复的代码编写工作；Simulink 的每个模块对用户而言都是透明的，用户只须知道模块的输入、输出以及模块的功能，而不必管模块内部是怎么实现的，于是留给用户的事情就是如何利用这些模块来建立模型以完成自己的仿真任务；至于Simulink 的各个模块在运行时是如何执行，时间是如何采样，事件是如何驱动等细节性问题，用户可以不去关心，正是由于Simulink 具有这些特点，所以它被广泛的应用在通信仿真中，利用Simulink 强大的工具箱和其建模的优势建立了常用的DPCM数字电话通信系统仿真模型，对该通信系统进行了模型构建、系统设计、仿真演示、结果显示以及综合性能分析，而且该分析方法同样可推广到其它的通信系统，具有普遍意义。(Simulink-based simulation of Simulink DPSK communication system is provided by MATLAB dynamic system modeling and simulation of a software package that allows users to shift attention from the programming model of the structure, the user save a lot of repetitive coding work Simulink Each module is transparent to the user, the user need only know the module s input, output and functional modules, rather than how the realization of the internal control module, and then left to the user to do is how to use these modules to build model to fulfill its a simulation tasks as Simulink s Ge Ge module at run time how Zhi Xing, Shi Jian yes how to sample, events are the details of how to drive and so on Xing problem, users can not care, Zheng Shi as Simulink those characteristics, so Ta is widely used in communication simulation, using Simulink toolbox and its powerful modeling advantage of the establishment of a common DPCM Digital telephone communication system simulation model, the communica)
- 2010-04-24 15:20:45下载
- 积分：1
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function_and_note_in_matlab
MATLAB的主要函数及其注释
可方便查找用(The main function of MATLAB and its notes can be easily used to find)
- 2008-03-26 23:19:24下载
- 积分：1
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Eliminate-short-check-matrix-ring
对消去短环的LDPC码校验矩阵的构造进行分析，发表在通信技术上。(Eliminate short-check matrix ring construction of LDPC codes )
- 2011-12-04 21:30:55下载
- 积分：1
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05473880
A Comparison Between the Centralized and
Distributed Approaches for Spectrum Management
- 2012-09-18 11:11:37下载
- 积分：1
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AREPS_IEEE
美国海军开发的雷达传输损耗预测、计算软件AREPS的说明(The Space and Naval Warfare System Center, San Diego has a full spectrum research and development program with a long and proud history of rapidly responding to critical fleet requirements and deploying systems to address these requirements. One such system is the new Advanced Refractive Effects Prediction System (AREPS).)
- 2020-09-02 21:58:08下载
- 积分：1
