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Description: M-file for simulating a QPSK transmitter by modulating with a pseudo random bit stream. A serial to parallel conversion of the pseudo random bit stream is performed with mapping of two bits per symbol. A cosine and sine carrier is configured and the I and Q symbols modulate these carriers. The I and Q carriers are combined and time and frequency domain plots are provided showing key waveforms at various positions in the QPSK transmitter.
-M-file for simulating a QPSK transmitter b y modulating with a pseudo random bit stream. A s erial to parallel conversion of the pseudo rand om bit stream is performed with mapping of two bi ts per symbol. A cosine and sine carrier is CBMs gured and the I and Q symbols Modulate these CARR IERS. The I and Q carriers are combined and a time nd frequency domain plots are provided showing key waveforms at various positions in the QPSK t ransmitter.
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Size: 2048 |
Author: xiaoying |
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Description: 考虑载波的qpsk信号在瑞利信道上的仿真-consider Carrier qpsk Rayleigh channel signal simulation
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Size: 1024 |
Author: 李朗 |
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Description: 考虑载波的qpsk信号在瑞利信道上的仿真-consider Carrier qpsk Rayleigh channel signal simulation
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Size: 1024 |
Author: 李朗 |
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Description: 考虑载波的qpsk信号在瑞利信道上的仿真-consider Carrier qpsk Rayleigh channel signal simulation
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Size: 1024 |
Author: 李朗 |
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Description: 考虑了瑞利衰落信道下的情况,设置了5,10,20条多径,有完美的仿真结果-consideration of Rayleigh fading channels under the conditions, the number of trails 5, 10, 20, a perfect simulation results
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Size: 4096 |
Author: 李朗 |
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Description: 采用THP预编码（QR算法）的simulink仿真链路，有16QAM和QPSK两种调制方式，信道为瑞利衰落信道（simulink+m files）-using THP pre-Code (QR algorithm) simulink link, 16 QAM and QPSK modulation. Channel for Rayleigh fading channels (Simulink m files)
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Size: 23552 |
Author: 徐 |
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Description: 在高斯与一径瑞利衰落信道下对OFDM系统（QPSK调制）的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation
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Size: 2048 |
Author: 陈栩秋 |
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Description: 这是一个仿真qpsk信号通过不同信道模型（包括单径，多径，莱斯，瑞利平坦等信道）的性能的matlab程序。-This is a simulation qpsk signals through different channel model (including single-track, multi-track, Condoleezza Rice, Rayleigh and other flat Channel) Performance of Matlab procedures.
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Size: 1024 |
Author: zm |
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Description: 这个源程序代码包提供了通信系统中BPSK,QPSK,OQPSK,MSK,MSK2,GMSK,QAM,QAM16等调制解调方式 用matlab的实现，以及它们在AWGN和Rayleigh信道下的通信系统实现及误码率性能-The source code package provides a communication system in BPSK, QPSK, OQPSK, MSK, MSK2, GMSK, QAM, QAM16 manner, such as modulation and demodulation matlab realization, as well as their in AWGN and Rayleigh fading and realize the communication system error rate performance
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Size: 34816 |
Author: 郭顺利 |
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Description: 该程序源代码实现了OFDM通信系统性能的仿真，调制方式有BPSK,QPSK,MSK,QAM,信道为AWGN和Rayleigh信道，并对有插入导频的符合IEEE802.11a的OFDM系统进行了仿真。-The program source code to achieve the performance of OFDM communication system simulation, modulation has BPSK, QPSK, MSK, QAM, for the AWGN channel and Rayleigh channel, and have inserted the line with the IEEE802.11a pilot of OFDM system simulation.
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Size: 176128 |
Author: 郭顺利 |
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Description: 在matlab平台下产生信号序列通过QPSK方式调制通过高斯信道以及瑞利信道，对其中的过程的信号时域以及其频谱，星座图情况进行分析-Matlab platform in the signal sequence under way through the QPSK modulation, as well as through the Gaussian channel Rayleigh Road, on which the process of time-domain signal and its spectrum, constellation diagram analysis
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Size: 4096 |
Author: 祝建 |
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Description: 多径信道仿真
有三条固定路径的AWGN多径信道的QPSK系统进行BER性能方针，并与在理想的AWGN信道中同样系统的BER进行比较，为简化模型，作如下假设：
1，信道中有三条路径，包括一条没有衰落的LOS路径和两条具有瑞利衰落的路径。与各路径相应的接收功率以及路径间的延迟差是仿真的参数
2，信道的锐利衰落仅影响发送信号的幅度，不影响瞬时相位。
3，在符号间隔内各多径分量的衰减幅度是常数，并与相邻间隔无关。-Multipath channel simulation There are three fixed path multipath AWGN channel BER performance of QPSK systems approach, and in an ideal AWGN channel BER the same system for comparison, in order to simplify the model, make the following assumptions: 1, There are three channels path, including a no decline LOS path and the two have a Rayleigh fading path. Corresponding with the path to receive power as well as the path delay difference between the simulation parameters of 2, channel sharp decline affects only the magnitude of the transmitted signal, does not affect the instantaneous phase. 3, in the symbol intervals multipath component of the decay rate is constant, and has nothing to do with the next interval.
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Size: 5120 |
Author: TT |
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Description: 基于DVB-T标准,COFDM调制系统的信道估计,仿真条件：4个OFDM符号，QPSK调制，二维内插，瑞利多径信道-Based on DVB-T standard, COFDM modulation system for channel estimation, simulation conditions: 4 OFDM symbols, QPSK modulation, two-dimensional interpolation, Rayleigh multipath channel
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Size: 3072 |
Author: 穆佳 |
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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)－－二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)－－瑞利衰落信道模拟
仿真示例：
Alamouti(1,12,20,24)
说明：
1.2根发射天线、1根接收天线
2.最高信噪比为12dB，即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)-The main function Alamouti (Nr, max_snr, max_err_symbol, symbol_per_frame) function call QpskMapping (psudo_bit_sequence)- binary data to the QPSK signal transformation function call RayleighCH (Nr, Nt)- Rayleigh fading channel Simulation Example: Alamouti (1,12 , 20,24) Description: 1.2 transmission antennas, a receiving antenna 2. the highest SNR 12dB, that is, simulation range of 0dB to 12dB 3. in each signal to noise ratio conditions, the misuse of symbols that stop a few more than 20 The signal to noise ratio under the conditions of simulation 4. each frame of data for the 24 QPSK symbols integrated simulation function SimAlamouti (max_snr, max_err_symbol, symbol_per_frame) with a receiving antenna system SER performance and two receive antenna system SER performance comparison SimAlamouti (12,20,24)
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Size: 204800 |
Author: 老何 |
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Description: qpsk在raylaigh信道下的误码率曲线，及其瑞利分布函数-QPSK in under raylaigh channel bit error rate curve, and the Rayleigh distribution function
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Size: 3072 |
Author: guoda |
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Description: 不考虑多径干扰时在高斯白噪声和瑞利衰落信道条件下QPSK的调制解调过程，
并采用准分析法完成误码性能的计算。仿真过程包括仿真信号产成，滤波器设置，QPSK调制，加入高斯白噪声，通过锐利信道衰落，QPSK解调，误码率计算等几部分-Not consider multi-path interference at the white Gaussian noise and Rayleigh fading channel under the conditions of the QPSK modulation and demodulation process and the use of quasi-analysis method to complete the calculation of BER. The simulation process includes the middle class into a simulation signal, filter settings, QPSK modulation, by adding Gaussian white noise, through the sharp decline in channel, QPSK demodulation, bit error rate calculation and other parts
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Size: 41984 |
Author: 金鑫 |
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Description: 关于2FSK在高斯和瑞利信道的传输，以及OFDM系统的仿真模型，还有QPSK的Simulink仿真。-About 2FSK in Gaussian and Rayleigh channel transmission, as well as the OFDM system simulation model, as well as QPSK the Simulink simulation.
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Size: 107520 |
Author: 刘东娜 |
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Description: 信道编码采用卷积码，解码使用Viterbi解码。调制给出QPSK、16QAM
两种调制方式，并在AWGN和瑞利信道两种信道模型下传输。-Channel coding using convolutional codes, decoding using the Viterbi decoder. Given modulation QPSK, 16QAM modulation in two ways, and in the AWGN and Rayleigh channel model of two-channel transmission.
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Size: 21504 |
Author: zollone |
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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.
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Size: 243712 |
Author: xin |
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Description: 瑞利衰落信道中空时编码仿真程序：
1.2根发射天线、1根接收天线2.最高信噪比为12dB，即仿真范围为0dB到12dB3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真4.每一帧数据为24个QPSK符号-Rayleigh Fading Channels Space-Time Coding Simulation Program: 1.2 transmission antennas, a receiving antenna 2. The highest SNR 12dB, that is, simulation range of 0dB to 12dB3. In each signal to noise ratio conditions, the number of symbol error over 20 that is, to stop the signal to noise ratio under the conditions of simulation 4. each frame 24 QPSK data symbols
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Size: 5120 |
Author: 陈功 |
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