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ModbusRTU_attiny44
MODBUS RTU using Attiny44 from Atmel
- 2013-08-30 22:21:27下载
- 积分:1
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RFM70_receiver_code
RFM 70 radio Transever 2.4GHz
- 2013-09-27 18:50:56下载
- 积分:1
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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
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Li-Jian-MIMO-Radar
美国佛罗里达大学Li Jian教授关于MIMO Radar的经典讲义,从事该领域研究的不得不看啊(Li Jian professor at the University of Florida on MIMO Radar classic lectures, engaged in research in this field have to see ah)
- 2020-11-14 09:59:42下载
- 积分:1
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bpskandqpskandmsk
说明: matlab的bpsk,qpsk,msk,qam打包下载,不是自带的程序函数。按照通信框图做的程序(MATLAB,bpsk,qpsk,msk,qam)
- 2010-04-07 22:44:41下载
- 积分:1
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CCSDS_LDPC
CCSDS推荐的LDPC编码方案,一系列参考标准,很好哦!(CCSDS recommended LDPC coding scheme, a series of reference standards, very good!)
- 2020-06-15 23:00:02下载
- 积分:1
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BOSCHESP
博世ESP很好的学习材料,对进入ESP行业很有帮助。(helpful knowledge of Bosch ESP. Not available on website)
- 2016-12-06 14:48:48下载
- 积分:1
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rs_encoder
适应多个模式的rs编码,Verilog,选择对应的多项式(RS coding adapted to multiple modes.)
- 2020-06-16 04:40:02下载
- 积分:1
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181072
用C++写的LDPC的传输仿真程序,包括编码,BP译码以及判决()
- 2018-07-08 21:19:32下载
- 积分:1
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仿真高斯在大气湍流中的传输 gauss
说明: 仿真高斯在大气湍流中的传输,研究对其光强和相位影响(Simulation of Gaussian propagation in atmospheric turbulence,Study on the influence of light intensity and phase)
- 2020-10-03 19:57:41下载
- 积分:1