-
通过matlab实现车联网下的资源分配
通过matlab实现车联网下的资源分配,包括用户、路边单元和基站,相关毕设可以使用(Matlab is used to realize the resource allocation under the vehicle network, including users, roadside units and base stations, which can be used in relevant settings.)
- 2020-10-15 18:37:29下载
- 积分:1
-
OFDM-QPSK
OFDM的QPSK及其调制matlab程序(OFDM-QPSK modulation matlab and its procedures)
- 2020-07-02 03:00:01下载
- 积分:1
-
VC_MFC-Sample1
Microsoft Visual C++ MFC串口通信编程详解,主要介绍了用CreateFile()函数和WriteFile()函数读写串口的实例,以及设置
串口属性的实例.
在工业控制中,工控机(一般都基于 Windows 平台)经常需要与智能仪表通过串口
进行通信.串口通信方便易行,应用广泛.
一般情况下,工控机和各智能仪表通过 RS485 总线进行通信.RS485 的通信方式是
半双工的,只能由作为主节点的工控 PC 机依次轮询网络上的各智能控制单元子节点.
每次通信都是由 PC 机通过串口向智能控制单元发布命令,智能控制单元在接收到正
确的命令后作出应答.
(Microsoft Visual C++ MFC serial communication programming explain CreateFile () and WriteFile () function to read and write the serial port of the instance, and set the serial port attribute instance in industrial control, IPC (generally based on the Windows platform) often need to communicate with the smart meter through the serial port serial communication easy and widely used normal circumstances, the IPC and intelligent instrument through RS485 communication RS485 communication is half-duplex, only as the primary node industrial PC turn polling network intelligent control unit child nodes. every communication from a PC via the serial port to issue commands to the intelligent control unit, intelligent control unit receives the correct command response.)
- 2012-10-11 07:23:02下载
- 积分:1
-
BPSK调制仿真
说明: bpsk调制仿真,可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处,形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控(ASK)、频移键控(FSK)、绝对相移键控(PSK)、相对(差分)相移键控(DPSK)。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而,实际中的大多数信道(如)无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输,必须用数字基带信号对载波进行调制,以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分:1
-
TMS320C6000-Programmers-Guide
TMS320C6000 Programmer s Guide,详细的介绍了C6000编程方面的内容(TMS320C6000 Programmer s Guide)
- 2012-03-07 21:12:55下载
- 积分:1
-
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
-
Dr.Ahmed-Metwally
Manual of the digital kit which has a number of MT 3000 for the Mobile Communication system.
- 2017-03-07 16:27:04下载
- 积分:1
-
DCSK
AWGN信道中,如何用代码实现DCSK调制方法以及系统的误码性能的分析情况(AWGN channel, DCSK system error performance)
- 2013-04-02 14:41:15下载
- 积分:1
-
Satellite-FDM-examples
说明: 频分复用信号的生成以及演示,与英文工具书匹配,很好用!(FDM signal generation)
- 2020-06-24 23:20:02下载
- 积分:1
-
VirtualSerialPortDriver_Cracked
虚拟串口工具,可以在普通电脑上虚拟成对串口,方便进行串口编程的本地调试(Virtual Serial Port Tool, which can be virtual paired serial ports on ordinary computers, facilitates the local debugging of serial port programming.)
- 2020-06-24 13:40:02下载
- 积分:1