网站首页

登录

QPSK

于 2013-12-23 发布文件大小:90KB

 0  139

下载积分: 1 下载次数: 50

我要下载

代码说明：

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。 (Digital modulation is the spectrum shifting to high frequency digital baseband signals, suitable for the formation of bandpass signal transmission in the channel. Digital modulation basic amplitude keying (ASK), frequency shift keying (FSK), the absolute phase shift keying (PSK), relative (differential) phase shift keying (DPSK). At the receiving end can be used to dry the demodulation or non coherent demodulating the digital baseband signal. )

下载说明：请别用迅雷下载，失败请重下，重下不扣分！

发表评论

0 个回复

bat
bat algorithm for optimization

2011-12-22 20:00:16下载

积分：1
THREEPHMLIW1DC
说明：电力系统模型，用Matlab/Simulink搭建(Power system Simulink model)

2020-01-09 19:18:01下载

积分：1
gausjord
Gauss-Jordan routine, single RHS

2010-11-16 17:50:54下载

积分：1
MATLAB7
基于Matlab的压缩感应的实例（包含源代码）(Cognitive sensor)

2010-03-06 17:16:42下载

积分：1
exer1
用阵列光电传感器实现空间窄带陷波功能时，采用右图所示的空间权重结构：共有N=2M+1个敏感元件，各敏感元件宽为w，间距为p，中心处敏感元件的权重为+2M，其他2M个敏感元件的权重皆为-1。求此权重函数的傅立叶变换及空间功率谱，并绘图说明当N=7，p=1mm，w=1/３mm时的空间功率谱的零点特征及其应用意义。(With a photoelectric sensor array to achieve narrow-band notch function space, with the weight shown on the right of the space structure: a total of N = 2M+1 a sensitive element, the sensor width w, spacing p, the center of the sensitive components of weight+2 M, 2M a sensitive element of the other weights are all-1. This function find the Fourier transform of the weight and space power spectrum, and the drawing shows that when N = 7, p = 1mm, w = 1/3mm space power spectrum at zero characteristics and application significance.)

2011-06-20 20:32:28下载

积分：1
Cassius-MI
Controle vetorial direto e indireto do MI – uma abordagem usando orientaç ã o pelo fluxo rotórico.

2011-08-22 10:18:44下载

积分：1
pink-noise-denoise-by-PCG-signal
this matlab code denoise the pink noise from pcg signal and generate the specogram

2014-02-21 21:40:30下载

积分：1
fashe_estimate_channel
说明： BD-OFDM的接收和发射，是用Matlab编程实现的++matlab，程序比较简洁，易懂。(BD-OFDM receiver and the launch is the use of Matlab programming of the++ matlab, procedure is simple and easy to understand.)

2010-04-29 09:33:27下载

积分：1
vibration-signal-analysis
用matlab编辑的计算振动信号的程序，设计谱分析等振动信号分析常用的分析方法(codes of vibration signal processing,which is coded in matlab.in this codes,some essential methods,for intance,spectural analysis,are presented.)

2012-05-06 13:25:43下载

积分：1
power_wind_dfig
最大风能跟踪的双馈风力发电田系统的建模。运用simulink模块对双馈风力发电机系统进行仿真(The maximum wind tracking modeling doubly-fed wind power generation field system. Simulink module using the doubly-fed wind generator system simulation)

2014-04-04 18:55:56下载

积分：1

696518资源总数
104269会员总数
42今日下载