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analog_modulation

于 2021-04-25 发布

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下载积分: 1 下载次数: 16

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代码说明：

说明：模拟调制识别各特征参数随信噪比变化曲线。信号的瞬时信息包括瞬时幅度、瞬时相位、瞬时频率及其不同角度的统计特征值，其中瞬时幅度、瞬时相位、瞬时频率是一个信号最基本的特征。（AM、DSB、SSB、VSB、FM、AM-FM）(Simulated Modulation Recognition Curve of Variation of Characteristic Parameters with Signal-to-Noise Ratio)

文件列表：

analog_modulation\analog_modu.asv, 7274 , 2019-03-07
analog_modulation\analog_modu.m, 6929 , 2019-03-07
analog_modulation\zdy.m, 393 , 2019-03-07
analog_modulation\zdy1.m, 391 , 2019-03-07
analog_modulation\zdy2.m, 169 , 2010-11-15
analog_modulation\zdy3.m, 248 , 2010-11-15
analog_modulation\zdy4.m, 150 , 2010-11-22
analog_modulation\zdy5.m, 175 , 2019-03-07
analog_modulation, 0 , 2019-03-07

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PhaseLockedLoop
％The phase locked loop(PLL),adjusts the phase of a local oscillator ％w.r.t the incoming modulated signal.In this way,the phase of the ％incoming signal is locked and the signal is demodulated.This scheme ％is used in PM and FM as well. ％We will implement it by using a closed loop system.Control systems ％techniques are applied here.( The phase locked loop (PLL), adjusts the phase of a local oscillator wrt the incoming modulated signal.In this way, the phase of the incoming signal is locked and the signal is demodulated.This scheme is used in PM and FM as well. We will implement it by using a closed loop system.Control systems techniques are applied here.)

2007-04-19 12:00:01下载

积分：1
8psk
（1）分析QPSK调制、解调原理，并画出其系统框图；（2）产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形；（3）进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形；（4）产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱；（5）将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图；（6）进行8PSK解调，输出解码序列，画出解调后信号波形；（7）计算系统信噪比、传输误码率。((1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.)

2012-06-24 13:16:59下载

积分：1
CMU200
CUM200的中文使用说明书，包含CMU200的大部分实用功能(The Chinese CUM200 instructions)

2012-06-27 17:07:46下载

积分：1
qpsk-modelation
QPSK的调制和解调，解调部分包括时钟和载波的同步等(QPSK modulation and demodulation, the demodulation section includes a clock and carrier synchronization)

2012-07-26 15:56:11下载

积分：1
B1C信号的调制
说明： BOC调制的Matlab程序仿真及Simulink模型(Matlab program and BOC modulation simulation model of Simulink)

2021-04-17 19:18:52下载

积分：1
Schmidl_Cox_original
OFDM 同步技术研究 Schmidl_Cox算法定时估计matlab程序(OFDM the synchronization technology research S&C algorithm timing estimation)

2012-10-15 07:34:04下载

积分：1
心电信号分析方法研究(含matlab代码)
说明：心电信号预处理方法研究，内含MATLAB仿真代码与研究文档。(Research on ECG signal preprocessing method, including MATLAB simulation code and research documents.)

2020-06-23 18:40:01下载

积分：1
相干光通信不同调制格式Matlab仿真
说明：相干光通信QPSK，QAM调制格式等MATLAB仿真代码，直接运行即可，非常好用。(Coherent optical communication QPSK, QAM modulation format matlab simulation code, direct operation can be, very easy to use.)

2021-03-30 21:19:09下载

积分：1
s_4FSK
利用MATLAB/simulink实现4FSK调制(Using matlab simulink for simulation modulation 4FSk)

2020-11-19 10:29:38下载

积分：1
qqxgn
分析了该信号的时域、频域、倒谱，循环谱等,包括广义互相关函数GCC时延估计，这个有中文注释，看得明白。( Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Including the generalized cross-correlation function GCC time delay estimation, The Chinese have a comment, understand it.)

2017-04-18 12:39:50下载

积分：1

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