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Factorial
Factorial recursion , try it
- 2016-05-10 20:42:44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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宽带FIR波束形成
说明: 用自适应方法设计具有特定频率响应的FIR滤波器用于进行时域宽带波束形成(Adaptive design of FIR filter with specific frequency response for time domain broadband beamforming)
- 2020-01-26 21:44:20下载
- 积分:1
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ModScan32-1
用于监控PLC,针对的是modbus协议(monitoring PLC with modbus protocol)
- 2013-10-21 12:50:17下载
- 积分:1
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cat2013-Prospectus--cusat
see the attachments- cusat
- 2013-09-18 00:05:22下载
- 积分:1
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Serial_procedures
串口程序,实现串口发送,接受文件,用户只有少做修改就可以为自己所有(Serial procedures, implementation serial send, receive documents, the user only a few modifications can make all their own)
- 2009-03-30 23:05:51下载
- 积分:1
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BEROSTBC
This program simulates the bit-error-rate (BER) performance of OSTBC
with L=4 antennas over the frequency flat Rayleigh block fading channel
The code is developed for real orthogonal design, code rate 1/2
modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.
- 2012-12-08 13:13:10下载
- 积分:1
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massivemimobook-master
针对Massive MIMO的详尽全面的仿真。(A detailed and comprehensive simulation for massive MIMO system.)
- 2021-04-18 22:28:51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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现代通信系统MATLAB
现代通信系统, 基于MATLAB的仿真,利用MATLAB学习通信原理(Contemporary Communication Systems Using MATLAB)
- 2021-04-08 10:29:01下载
- 积分:1