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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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O&M算法仿真
matlab O&M算法 matlab仿真程序，使用函数实现位定时算法(Matlab O&M algorithm matlab simulation program, the use of functions to achieve bit timing algorithm)
- 2017-08-10 14:51:51下载
- 积分：1
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MUSIC
阵列信号处理的基本MUSIC算法以及改进的基于子空间投影加权的MUSIC算法，以及全空间加权MUSIC算法对DOA进行估计，以及几种算法的均方根误差比较(The basic MUSIC algorithm of array signal processing, the improved MUSIC algorithm based on subspace projection weighted, and the full space weighted MUSIC algorithm for the estimation of DOA, and the root mean square error comparison of several algorithms)
- 2020-08-03 16:18:34下载
- 积分：1
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Si100x_SPI0_Slave
HLP A+ Modbus 标准通讯协议格式，上位机发送数据格式，正确时变频器返回数据格式(This bit will be set to logic 1 when the receive buffer has been read and contains no
new information. If there is new information available in the receive buffer that has
not been read, this bit will return to logic 0. RXBMT = 1 when in Master Mode.)
- 2013-11-15 11:31:43下载
- 积分：1
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Characterization-of-Raman-assisted-FOPA-GAIN
Characterization of Raman-assisted Fiber Optical
Parametric Amplifiers Gain
- 2013-07-01 23:34:40下载
- 积分：1
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syn_m1
DVB-T（2K模式）同步，仿真最大似然相关（MLE）算法，在符号开始位置出现谱峰(DVB-T (2K mode) synchronization, simulation Maximum Likelihood correlation (MLE) algorithm. Symbol began in the peaks of position)
- 2007-05-27 15:52:58下载
- 积分：1
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demon
水声信号处理 demon谱分析 matlab 质料完整(Acoustic signal processing demon spectrum analysis matlab material integrity)
- 2021-04-26 14:28:45下载
- 积分：1
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IEC 60870-5-101Transmission protocols
IEC 60870-5-101 通信规约英文版规范(IEC 60870-5-101-2003 Telecontrol equipment and systems Part 5-101 Transmission protocols)
- 2020-06-17 09:20:02下载
- 积分：1
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PPT
扩频通信，即扩展频谱通信(Spread Spectrum Communication)，它与光纤通信、卫星通信，一同被誉为进入信息时代的三大高技术通信传输方式。
- 2011-12-15 20:30:31下载
- 积分：1
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technology-Bluetooth-wireless
关于蓝牙的设计
基于蓝牙技术的无线数据采集系统(The design is based on Bluetooth technology Bluetooth wireless data acquisition system)
- 2011-06-23 20:48:51下载
- 积分：1
