搜索资源列表
QPSKmodelmain.rar
- QPSK调制代码,高斯和瑞丽衰落信道后的信号波形,QPSK Modulation
QPSK.rar
- QPSK是一种二维调制技术,其中水平轴称为同相轴,垂直轴称为正交轴,分别对应于星座图上的1和Q坐标。同相载波指载波本身,正交载波指相位旋转90度的载波1周。QPSK调制在实现时是采用正交调幅的方式,某星座点在1坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将两个调幅信号相加就是所需的调相信号,QPSK is one kind of two-dimensional modulating technology, the horizontal axis is called
digitalmod.rar
- 数字通信调制信号信号模拟系统 信号种类: MASK:2ASK,4ASK,8ASK MPSK:2PSK、4PSK、8PSK MFSK:2FSK、4FSK、8FSK 分连续相位CPFSK和离散相位DPFSK两种 MQAM:16QAM、32QAM、64QAM、128QAM OFDM:子载波数可任意选定,映射方式有BPSK、QPSK、4QAM、16QAM、32QAM、64QAM ,Digital communication system signal-signal analog modul
MATLAB
- 包含调制和解调:1、可输入数字基带信号进行各种参数、各种方式的调制程序,也可读入调制数据。2、对自调制数据或读入的文件调制数据进行调制方式和调制方式的分析,适合正在学习调制解调的人员使用,通过单步运行,详细了解各种调制与解调的原理及工程实现-Include modulation and demodulation: 1, enter the digital baseband signal parameters, the modulation process in various ways, but
Barker-spread-Spectrum
- 基于Visual C++下的BPSK信号的调制和解调,中间有扩频部分-Based on Visual C++ signal under BPSK modulation and demodulation, spread-spectrum part of the middle
DBPSK.rar
- 数字通信中的DBPSK调制解调的原理和过程, 通过用Matlab 对这一过程的编程,分析信号在理想信道和加噪信道中传输时的时域图, 并用蒙特卡罗算法进行仿真。,Digital communication in DBPSK modulation and demodulation principles and processes, through the use of Matlab in the process of programming, analysis of signals in the i
PCM
- 实现了pcm调制的全过程的MATLAB仿真,包括调制、A率压缩、量化、解扩、解调、信号恢复。-Modulation achieved pcm MATLAB simulation of the whole process, including the modulation, A rate of compression, quantization, despreading, demodulation and signal recovery.
BPSK
- MATLAB仿真 BPSK调制,并用相干解调和差分相干解调方法解调信号,输出误码率-MATLAB simulation BPSK modulation ,use coherent demodulation and differential coherent demodulation to deal with signal, output bit error rate
my_QPSKmod_201107
- 从基带信号产生——IQ映射——调制——信道加噪——解调——判决及反映射——接收信号输出,每个步骤都画出了图形。 -From the baseband signal- IQ mapping- Modulation- channel with noise- modem- judgments and reflect radio- receiver signal output, each of these steps are drawn graphics.
16QAM
- 16QAM调制信号系统误码率仿真,可以解决16QAM信号误码率仿真的问题-16QAM modulation signal system BER simulation, 16QAM signals can be solved the problem of simulation of bit error rate
dierti
- 信号的调制与解调,调频、调幅、调相。了解几种基本的调制方法。-Signal modulation and demodulation, frequency modulation, amplitude modulation, phase modulation. Learn some basic modulation methods.
fsk
- 在MATLAB中编一个2FSK调制的信号,可以用类似方式产生2psk信号等等其他调制信号-A 2FSK in MATLAB code modulated signal can be used to produce a similar manner 2psk modulation signal, and so other
GSMsim
- GSM Matlab仿真源,能够生成GSM的调制信号。-GSM Matlab simulation source
16qam_channel_encode
- 一、 本程序采用16QAM调制方式,对一串2进制信源进行调制,采用(7,4)循环码对信源做信道编码,用升余弦滚降函数进行基带调制,再调到高频信道;在信道上加入高斯白噪声,运用匹配滤波器解调,画出解调星座图,运用最小欧氏距离译码判决,再对信号进行信道解码,画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
ofdm
- QPSK调制信号经过AWGN、Rayleigh衰落信道的误码率-QPSK modulated signal through AWGN, Rayleigh fading channel bit error rate
matlabinCommunication
- 《通信原理》 上机实验, 包括实验报告和matlab源代码,有2ASK、2FSK、2PSK、2DPSK基带信号和调制信号的仿真程序,已经对它们性能的仿真程序-the matlab code of COMMUNICATION PRINCEPLES, including the baseband signal and modulating signal emulation program of 2ASK、2FSK、2PSK、2DPSK and emulation program of their
4.5.2
- 用matlab对基带数字系统进行仿真。整个系统描述了信号的发送和调制过程。其中调制采用16QAM,并且采用基带传输,不必调制到载频上。系统总采用了高斯信道,在接受端采用解调并与发送型号进行比较得到误码率。-Using matlab to base-band digital system simulation. Describes the overall system signal to send and modulation process. Which modulation using 16Q
dsb
- 双边带调制解调信号代码 用matlab实现(通信原理课程设计)-Bilateral band modem signal code using matlab to achieve (Communication Theory Course Design)
code
- 随机产生长度大于1000的‘0’、‘1’信号序列,对其进行BPSK,QPSK,16QAM调制,给出: 1)低通滤波器后的波形(只画10个周期); 2)信号眼图,对其进行讨论(画出5个信号周期); 3)信号带内、带外功率谱密度(低通滤波器参数自定),并对其进行讨论。 -Generated OVSF code
Q_DSSS
- 直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码,与多用户信息数据相乘得到信息数据的直接扩频信号,再经过BPSK调制后发送出去,经过AWGN无线信道的传输后,在接收端与本地产生的地址码进行相关检测,从中将地址码与本地码一致的用户数据选出,把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user in