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AWGN信道模型下的模拟调制解调matlab实现
此程序实现了AWGN信道下的模拟调制解调，用的是matlab平台(This program implements the analog modulation and demodulation under the AWGN channel, using the MATLAB platform.)
- 2021-04-19 11:08:51下载
- 积分：1
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OFDM
说明： OFDM系统仿真，分析了AWGN信道和瑞利衰落信道下的ber曲线(The simulation of OFDM system analyzes the BER curves of AWGN channel and Rayleigh fading channel)
- 2020-05-22 10:21:03下载
- 积分：1
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DLT645Debuger_645
朋友写的C++645通讯程序，支持645-1997与645-2007,支持自已组帧程序自动添加校验码通讯，可以增加数据标识定义，里面还有部分关于费控通讯代码，挺好，拿来分享(Friend write C++645 communications program to support the 645-1997 and 645-2007, to support their own group the frame program automatically adds the checksum communications, can increase data identifies the definition, there is also a section on the fee control communications code, good for them and share)
- 2020-09-20 21:27:53下载
- 积分：1
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fetion
My Fetion 实现PC客户端通过FETION WEB URL 发送短信( My Fetion)
- 2011-11-17 13:24:08下载
- 积分：1
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txxxxxx
一个关于IEEE802.15.4a信道原理的matlab编码(A on IEEE802.15.4a channel matlab coding)
- 2013-04-20 14:10:54下载
- 积分：1
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BPSK调制仿真
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
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cdma
说明： CDMA AT 命令
WAVE CDMA AT Commands
Interface Specification(CDMA AT command WAVE CDMA AT Commands Interface Specification)
- 2008-10-02 21:32:09下载
- 积分：1
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mcma
一个CMA算法程序，可以对CMA算法进行一些仿真研究(A CMA algorithm procedures, CMA algorithm can carry out some simulation studies)
- 2008-03-12 10:26:29下载
- 积分：1
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STH20
读取SHT20的数据发送到主控STM32F103vet6(Read data from SHT20 and send it to master STM32F103vet6)
- 2020-06-17 11:20:02下载
- 积分：1
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MModBus_TestO
modscan32是modbus/tcp以太网通讯调试工工具,如同串口调试助手一样的工具.，
(modscan32 is modbus/tcp ethernet communication tools, debugging tools tools like serial debugging aides.)
- 2012-08-06 23:21:29下载
- 积分：1
