Description: 本文介绍了QAM调制、解调和判决原理，讨论了QAM的误码率性能，并在SystemView下对QAM调制、解调系统进行了仿真，观察并分析了原始输入信号、调制信号、解调信号、星座图以及QAM信号的功率谱图。-QAM modulation, demodulation and sentencing principle, the QAM BER performance, and right under the SystemView QAM modulation, demodulation system for simulation, observation and analysis of the original input signal, signal modulation, demodulation signal constellation map and QAM signals in the power spectrum. Platform: |
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Description: QPSK BER 性能分析的 通过使用
matlab进行ber的性能分析-QPSK BER performance analysis through the use of matlab to ber Performance Analysis Platform: |
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Author:zhuyunbin |
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Description: This code was used for making the practical measurements in section 2.3 of my thesis. This Matlab code allows an OFDM signal to be generated based on an input data file. The data can be random data, a grey scale image, a wave file, or any type of file. The generated OFDM signal is stored as a windows wave file, allowing it to be viewed, listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data. This code was developed for the experiments that I performed in my honours thesis, and thus has not been fully debugged.
This is the original code developed for the thesis and so has several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.
-This code was used for making the practical measurements in section 2.3 of my thesis. This M atlab code allows an OFDM signal to be generated based on an input data file. The data can be rando m data, a gray scale image, a wave file, or any type of file. The OFDM signal is generated stored as a windows wave file, allowing it to be viewed. listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data . This code was developed for the experiments th at I performed in my honors thesis, and thus has not been fully debugged. This is the original code developed for the thesis and so ha 's several problems with it. The BER performance given by the simulations is infact Symbol Error Rate. Platform: |
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Author:王文 |
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Description: qpsk的simulink仿真 可看ber性能等参数-The simulink simulation of QPSK can see the performance parameters such as ber Platform: |
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Author:yanzheng |
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Description: 4QAM下FMT系统误码率性能分析，包含原型滤波器、多相滤波器等代码。——analysis of BER performance of FMT system with 4QAM,including ProtoFilter and polyphase filter-FMT system under 4QAM BER performance analysis, including the prototype filters, polyphase filters, such as code.- Analysis of BER performance of FMT system with 4QAM, including ProtoFilter and polyphase filter Platform: |
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Author:姚爱全 |
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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. Platform: |
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Author:TT |
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Description: 3条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真，并与理想信道(没有多径)作比较。
需要的支撑子程序为qpsk_berest.m,vxcorr.m,random_binary.m.-Three fixed-path multipath AWGN channel QPSK system BER performance simulation, and with the ideal channel (no multipath) for comparison. Need the support of subprogram for qpsk_berest.m, vxcorr.m, random_binary.m. Platform: |
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Author:liuhui |
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Description: QPSK技术具有抗干扰性能强、误码性能好、频谱利用率高等优点,目前广泛应用于数字通信、数字视频广播、数字卫星广播等领域 详细介绍了QPSK技术的工作原理、性能以及使用调相法和相位选择法产生QPSK信号的电路方框图及特点。-QPSK technology has strong anti-interference performance, BER performance and spectral efficiency advantages, at present widely used in digital communications, digital video broadcasting, digital satellite broadcasting and other areas described in detail QPSK technology works, performance and the use of phase modulation method and phase selection have a QPSK signal and characteristics of the circuit block diagram. Platform: |
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Author:feixiang |
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Description: 有关QPSK调制解调的仿真程序，包括基带输入波形及其功率谱、QPSK调制信号及其功率谱、AWGN信道输出及其功率谱、通过瑞利信道之前和之后的信号星座图
6)在高斯白噪声和瑞利衰落信道条件下的误码性能以及高斯白噪声的理论曲线，所有误码性能曲线在同一坐标比例下绘制-Relevant QPSK modulation and demodulation of the simulation program, including the baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, AWGN channel output and its power spectrum, through the Rayleigh channel before and after the signal constellation of Figure 6) in high- Adams white noise and Rayleigh fading channel under the conditions of BER, as well as the theory of Gaussian white noise curve, all the BER performance curve in the same proportion of coordinates under the map Platform: |
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Author:Navy2008_CHINA |
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Description: 仿真具有三条固定信道的AWGN多径信道的QPSK系统的BER性能，并与理想信道进行比较-The simulation has three fixed AWGN channel multi-path channel of QPSK system BER performance and the ideal channel for comparison Platform: |
Size: 3072 |
Author:wowoo |
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Description: 8单径瑞利信道中的四发四收V-BLAST：
(1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量16QPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。
(2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。-8 Single-Path Rayleigh Channel Four received four V-BLAST: (1) Please design a specific guide-assisted channel estimation method, using Simulink simulation, measurement 16QPSK modulation BER performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve. (2) calculate the design of spectrum efficiency is the number of units of bit/Hz/s. Platform: |
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Author:haohao |
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Description: QPSK系统在无线通信信道中的仿真,通过对有若干条（大于2条）路径的无线多径衰落信道中的QPSK系统进行误码率性能仿真，并在与理想的高斯加性白噪声信道中同样系统的BER性能进行比较，利用SA方法给出本仿真模型的仿真结果-QPSK system in the wireless communications channel simulation, through a number of articles (more than 2) the path of wireless multi-path fading channel QPSK system BER performance simulation, and at high places like the ideal of white noise channel BER performance of the same system for comparison, using SA method give the simulation model of the simulation results Platform: |
Size: 2048 |
Author:andy |
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Description: 对3条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真（不同p和delay 的取值来分别定义莱斯（瑞利）平坦衰落信道、莱斯（瑞利）频率选择性衰落信道).-For three fixed-path multipath AWGN channel of the QPSK system BER performance simulation (different values for p and the delay are defined Rice (Rayleigh) flat fading channel, Rice (Rayleigh) frequency-selective fading channels ). Platform: |
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Author:minmin |
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Description: DS-CDMA的MMSE算法程序，给出了不同信噪比下的BER性能比仿真曲线。-DS-CDMA of the MMSE algorithm program are given under different signal to noise ratio curve of BER performance than emulation. Platform: |
Size: 2048 |
Author:杨俊炜 |
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Description: 要求对有3条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真，并与在理想的AWGN信道中同样系统的BER性能进行比较。熟悉瑞利平坦衰落、莱斯平坦衰落与频率选择性衰落的特点，比较这些衰落信道的误码率。-Required to have three fixed-path AWGN multipath channels of QPSK system BER performance simulation, and in an ideal AWGN channel with the same system BER performance comparison. Familiar with the Rayleigh flat fading, Rice flat fading and frequency selective fading characteristics, compare the bit error rate fading channel. Platform: |
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Author:沈岗 |
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Description: 利用Matlab软件，分别建立QPSK,16QAM基带传输系统，比较AWGN和Rayleigh信道下的系统BER性能。(Using Matlab software, QPSK and 16QAM baseband transmission systems are built to compare the system BER performance of AWGN and Rayleigh channels respectively.) Platform: |
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Author:诸葛yiyi
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Description: 基于 MATLAB 对移动通信中的 BPSK、QPSK、16QAM 和 OFDM 基带传输系统进行仿真，分析它们在 AWGN 和 Rayleigh 信道下的误码率性能。重点建立了基于 QPSK 和 16QAM 调制方式下 OFDM 系统的仿真，比较两种调制方式在 Rayleigh 信道下的传输性能，分析了系统模型，提出了代码优化方案。(Based on MATLAB, we simulate the BPSK, QPSK, 16QAM and OFDM baseband transmission systems in mobile communications, and analyze their BER performance under AWGN and Rayleigh channels. The simulation of OFDM system based on QPSK and 16QAM modulation is mainly established. The transmission performance of two modulation modes under Rayleigh channel is compared, the system model is analyzed, and the code optimization scheme is put forward.) Platform: |
Size: 5120 |
Author:yellow17 |
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Description: 分析ADC的有效位数（ENOB）对QPSK误码率性能的影响，也就是分析量化噪声对QPSK性能的影响(The effect of ENOB of ADC on the BER performance of QPSK is analyzed. That is to say, the influence of quantization noise on the performance of QPSK is analyzed.) Platform: |
Size: 1024 |
Author:thinking09 |
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