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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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ICI-cancellation_my-paper
ICI cancellation using LDPC design for OFDM
- 2015-02-17 01:48:58下载
- 积分:1
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MIMO-OFDM_Systems
说明: In order to solve the problem of low bandwidth
utilization while the peak-to-average power ratio(PAPR) is
reduced.
- 2020-01-24 20:59:56下载
- 积分:1
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MIMO-OFDM Code
说明: MIMO-OFDM仿真,包含Jakes模型生成信道、信道编码、ZC序列生成和OFDM四个子文件(Simulation of MIMO-OFDM)
- 2020-03-10 00:51:20下载
- 积分:1
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VC_UP_BallKey
说明: 说明:此为球形开关测试程序的上位机软件。
能够记录由下位机上传的每支球形开关
的通断情况,自动记录上传的时间,
并且会将历次的结果保存在PC机的硬盘
中,带有具体的日期,方便查询。(Note : This spherical switch to the testing procedures PC software. To record the next crew uploaded each spherical switch-off, automatically records upload time, and will keep all the previous results of the PC's hard disk, with the specific date, and easily accessible.)
- 2006-04-06 13:20:48下载
- 积分:1
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APRO_ReferenceGuide
APRO ReferenceGuide for delphi
- 2019-01-04 10:44:48下载
- 积分:1
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buck
用simulink实现电力电子技术中的降压电路,可应用于光伏发电(Implementation of buck circuit with Simulink)
- 2018-10-22 09:50:00下载
- 积分:1
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多普勒频移条件下的 8-PSK调制解调及同步算法仿真
本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步,不仅程序注释清晰,而且附上该程序实验报告,力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better understanding of readers, I not only note the program clearly, but also provide the experimental report in the rar.)
- 2018-07-18 10:15:37下载
- 积分:1
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adaptive-signal-process
自适应信号处理(何振亚)(科学出版社出版)(有关自适应信号处理的书籍)(Adaptive signal processing (Zhenya) (Science Press) (for adaptive signal processing books))
- 2011-08-17 15:01:09下载
- 积分:1
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indirect-addressing-method-
详细介绍了西门子PLC的间接寻址方法,对于应用西门子PLC很有用处。(Detailed the the Siemens PLC indirect addressing method is useful for the application of the Siemens PLC.)
- 2013-02-01 11:42:13下载
- 积分:1