Description: QPSK的Matlab/Simulink的调制解调仿真系统，给出接收信号眼图及系统仿真误码率，包含载波恢复，匹配滤波，定时恢复等重要模块，帮助理解QPSK的系统-QPSK Matlab/Simulink simulation system modulation and demodulation, the received signal is given eye and BER simulation systems, including carrier recovery, matching filter, timing recovery and other important module to help understand the system QPSK Platform: |
Size: 7168 |
Author:李向坤 |
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Description: QPSK Transmitter and I/Q Correlator Receiver is based on the technique of queing the information in a bit stream and on the receving end using FFT and some additive filters, as the addition of noise is made to infuse the need of a filter. Necessarily a Baseband filter is used. Modulation acheived at the receiving end.
-QPSK Transmitter and I/Q Correlator Recei ver is based on the technique of the infor queing mation in a bit stream and on the receving end usi ng FFT and some additive filters, as the addition of noise is made to infuse the nee d of a filter. Necessarily a Baseband filter is u sed. Modulation achieved at the receiving end. Platform: |
Size: 4096 |
Author:xiaoying |
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Description: 基于C54X的DSP载波数字解调系统的设计，该硬件系统工作稳定，可以实现信号的实时处理，如可以实现语音信号的实时处理，通信信号的实时调制解调灯。在此基础上，为了验证DSP芯片的高性能，在此硬件平台上实现了两个具体应用：一个是高性能的FIR数字滤波器；一个是2FSK数字解调算法的实现。-C54X DSP-based carrier digital demodulation system design, the hardware system stability, can achieve the real-time signal processing and if we can achieve the real-time speech signal processing, real-time communications signal modulation and demodulation of signals. On this basis, in order to verify the high performance DSP chips, the hardware platform to achieve two specific applications : is a high-performance FIR digital filter; is a two FSK digital demodulation algorithm. Platform: |
Size: 418816 |
Author:王勇军 |
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Description: 基带数字信号通过成形滤波（选用升余弦滚降函数）然后进行载波调制-Base-band digital signal through the shaping filter (raised cosine roll-off optional function) and then proceed to carrier modulation Platform: |
Size: 4096 |
Author:黄华 |
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Description: 包括内插，还有成形滤波器等等调制时所用的matlab文件-Including interpolation, as well as shaping filter modulation, etc. used by the matlab file Platform: |
Size: 2048 |
Author:ylt |
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Description: 模拟滤波器，用M文件实现，可以做函数使用。有低通滤波器和高通滤波器，带通，带阻。-Analog filters, with M files to achieve, can be done using the function. There are low-pass filter and high-pass filter, band-pass, band-stop. Platform: |
Size: 7168 |
Author:eachgear |
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Description: 包含软件无线电、dds、滤波器设计、数字调制解调等常用无线通信设计的matlab\verilog源码-Contains software radio, dds, filter design, digital modulation and demodulation of wireless communication, such as commonly used design matlabverilog source Platform: |
Size: 197632 |
Author:李大鹏 |
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Description: 详细说明了pi/4 DQPSK 调制、解调，RRC 匹配滤波器设计， BER 蒙特卡洛仿真，rayleigh衰落下的系统仿真。 文档中附有各个模块的Matlab code。-Detailed description of pi/4 DQPSK modulation, demodulation, RRC matched filter design, BER Monte Carlo simulation, rayleigh fading of system simulation. Document attached to each module of the Matlab code. Platform: |
Size: 243712 |
Author:xin |
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Description: 关于线性调频波的三个小程序，包括线性调频波的生成，FFT变换，线性调频信号通过匹配滤波器-Linear frequency modulation wave on the three small procedures, including the generation of LFM wave, FFT transform, linear frequency modulated signal through the matched filter Platform: |
Size: 2048 |
Author:diaoguijie |
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Description: matlab下的simulink下实现16QAM调制解调，采用随机信号发生器，包括成形滤波和匹配滤波及信号星座图还原-simulink of matlab under the 16QAM modulation and demodulation implementation, using a random signal generator, including the shaping filter and matched filter and the signal constellation diagram Restore Platform: |
Size: 5120 |
Author:yanli |
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Description: simulation simulink of a modulation/desmodulation in gmsk with filter. -simulation on simulink of a modulation/desmodulation in gmsk with filter. Platform: |
Size: 7168 |
Author:Pedro |
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Description: 2个程序，MATLAB设计的一个滤波器，将含3个频率分量的信号通过该滤波器，滤除2个高频分量，得到只含低频的信号。
单边带信号调制，用MATLAB实现，是学习信号调制的一个好例子。-Two procedures, MATLAB design a filter, will contain three frequency components of the signal through the filter, filter out high frequency components of two, has been only with low-frequency signal. SSB signal modulation, using MATLAB to achieve, is to study signal modulation of a good example. Platform: |
Size: 1024 |
Author:胡佳 |
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Description: 一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，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，计算误比特率。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-band modulation, and then transferred to high-frequency channel in the channel by adding Gaussian white noise, the use of matched filter device demodulator, draw demodulation constellation, using the minimum Euclidean distance decoding decision, calculate bit error rate. Platform: |
Size: 107520 |
Author:zhaoyang |
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Description: 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, using (7,4) cyclic code of the source-channel coding to do with a raised cosine roll-off function for base-band modulation, and then transferred to a high frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot, using the minimum Euclidean distance decoding decision, and then right channel signals, decoding, channel coding techniques used to draw and non- channel coding techniques using bit error rate plans. Platform: |
Size: 90112 |
Author:zhaoyang |
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Description: Bit Error Rate analysis of an Extended Receiver for Rectangular PAM.
The performance of a digital communication system in the presence of additive white Gaussian noise (AWGN) can be assessed by the measurement of the bit error rate (BER). The Simulink model provided is a rectangular polar pulse amplitude modulation (PAM) baseband system with an AWGN channel and an extended sample and hold receiver with a low pass filter.
An extended receiver has an odd number of sample and hold circuits. What remains to be answered is if such a receiver would provide a more desirable BER than that of a simple S/H receiver.-Bit Error Rate analysis of an Extended Receiver for Rectangular PAM.
The performance of a digital communication system in the presence of additive white Gaussian noise (AWGN) can be assessed by the measurement of the bit error rate (BER). The Simulink model provided is a rectangular polar pulse amplitude modulation (PAM) baseband system with an AWGN channel and an extended sample and hold receiver with a low pass filter.
An extended receiver has an odd number of sample and hold circuits. What remains to be answered is if such a receiver would provide a more desirable BER than that of a simple S/H receiver. Platform: |
Size: 11264 |
Author:Griffin Wright |
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Description: A key consequence of the usual double-sideband amplitude modulation (AM) is that the range of frequencies the signal spans (its spectral bandwidth) is doubled. Thus, the RF bandwidth of a signal (measured from the lowest frequency as opposed to 0 Hz) is twice its baseband bandwidth. Platform: |
Size: 324608 |
Author:Khan17
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