-
delphi_filesend
delphi开发的基于TCP协议的文件传输程序。包含服务器端和客户端程序,可以互相传送。(delphi development based on the TCP protocol file transfer program. Includes server and client program, you can send each other.)
- 2013-03-30 20:23:27下载
- 积分:1
-
BER_OFDM_OQAM
基于MATLAB的OFDM/OQAM调制系统的仿真与误码率测试(Simulation and BER MATLAB the OFDM/OQAM modulation system test)
- 2020-07-02 18:00:02下载
- 积分:1
-
CMAequalization
QAM高阶调制 恒模盲均衡算法
CMA Equalization Algorithm(QAM CMA Equalization Algorithm)
- 2013-08-31 19:09:29下载
- 积分:1
-
ofdm系统模型
ofdm系统模型,包含信道估计 FFT变换 QPSK 16QAM调制 插入导频等,非常全面。(OFDM system model, including channel estimation FFT transform QPSK 16QAM modulation insert Pilot and so on, very comprehensive.)
- 2020-07-10 14:29:05下载
- 积分:1
-
基于电能计量芯片HLW8012的应用研究
说明: 基于电能计量芯片HLW8012的应用研究(Research on the application of power metering chip hlw8012 research on the application)
- 2019-12-02 19:16:21下载
- 积分:1
-
chang_human_voice_Matlab-master
voice transformation good algo
- 2017-06-09 20:36:07下载
- 积分:1
-
WriteMEID_Tool_V1.03
高通平台电信版CDMA手机写入MEID号码(Write MEID tool for Qualcomm platfrom)
- 2013-08-02 09:44:31下载
- 积分:1
-
HandOverInLTE
在做毕业设计时编写的程序,主要内容是高铁环境下LTE系统的切换算法研究,源码中含scm信道模型。(a simulation about handover in LTE under high-speed railway station environment, which involving scm channel model.)
- 2013-09-10 16:16:10下载
- 积分:1
-
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
-
DPSK
5416 的 dpsk 程序(5416 dpsk prog)
- 2009-07-15 08:57:03下载
- 积分:1