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Description: 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（没有多径）中同样系统地BER性能进行比较-to have three fixed path over the AWGN Channel QPSK BER performance system simulation, and with the ideal AWGN channel (multi-path) to the same system BER performance comparison
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Size: 5120 |
Author: xiecao |
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Description: 本例用matlab语言实现了4QPSK的编解码及通过awgn信道的仿真。采用蒙特卡罗仿真法，得到误码性能，绘制曲线。可用于算法研究或课程学习。-Matlab language used in this case achieved 4QPSK codec and channel through awgn simulation. Monte Carlo simulation method, the BER performance, drawing curves. Algorithm can be used for research or courses.
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Size: 43008 |
Author: 孙枫 |
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Description: AWGN多径信道中的QPSK系统进行BER性能仿真-Multipath AWGN Channel QPSK system BER performance simulation
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Size: 10240 |
Author: 于丹 |
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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: AWGN信道下Turbo码误比特率模型
在实验基础上，通过曲线拟合等数学工具，得到加性高斯白噪声信道条件下，信道编码采用turbo码，通信系统端到端的误比特率经验模型。-AWGN channel Turbo code bit error rate model in an experimental basis, through curve fitting and other mathematical tools, to be additive white Gaussian noise channel conditions, channel coding using turbo codes, end-to-end communication system bit error rate empirical model.
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Size: 391168 |
Author: 子羽 |
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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.
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Size: 1024 |
Author: liuhui |
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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
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Size: 41984 |
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
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Size: 3072 |
Author: wowoo |
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Description: 程序仿真了关于扩频系统在两种信道下的误码率-Process simulation of the spread spectrum system in about two channel BER
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Size: 4096 |
Author: tome |
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Description: Single/Multipath Channel Model Verificaiton
EbNo vs. BER/SER under AWGN
BPSK vs. QPSK
Theory vs. Simulation
AWGN vs. Flat Fading Channel
Most files are written by myself, enjoy it.
Figures are attached.
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Size: 74752 |
Author: tornado22222 |
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Description: 在这个例子中，我们对有三条固定路径的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（没有多径）中同样系统的BER性能进行比较。-In this example, we have three fixed-path multipath AWGN channel QPSK system BER performance simulation, and in an ideal AWGN channel (no multipath) in the same system BER performance comparison Progressive line.
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Size: 4096 |
Author: 聂立贤 |
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Description: simulate the BER of a QPSK modulated siganal using an AWGN channel
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Size: 1024 |
Author: obinna |
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Description: Simulation of a baseband QPSK mod/demod:
TX : a pseudo random bit stream generation, Serial to parallel conversion, QPSK Mapping (Gray coding), Signal power computation
Channel : AWGN channel
RX: Soft Demapping / Hard Demapping, Plot constellations, Compute BER-Simulation of a baseband QPSK mod/demod:
TX : a pseudo random bit stream generation, Serial to parallel conversion, QPSK Mapping (Gray coding), Signal power computation
Channel : AWGN channel
RX: Soft Demapping/Hard Demapping, Plot constellations, Compute BER
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Size: 4096 |
Author: IMM |
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Description: the simulation of BER for QPSK in OFDM system
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Size: 6144 |
Author: si |
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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 ).
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Size: 8192 |
Author: minmin |
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Description: Passing signal to AWGN channel after QPSK modulation and plotting BER at SNR
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Size: 1024 |
Author: hamedvahedian |
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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.
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Size: 1024 |
Author: 沈岗 |
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Description: I simulated the SPACE TIME BLOCK CODED system based on
Alamouti scheme, where the modulation is BPSK. Now I am trying to
extend that to QPSK and higher modulations.
Since for SISO channels, BER curve for BPSK and QPSK is equal in AWGN
and flat fading channels.
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Size: 1024 |
Author: den |
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Description: 在AWGN信道下实现QPSK系统的仿真 包括求误码率及功率谱密度及星座图-Simulation program to realize QPSK transmission system under AWGN channel
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Size: 121856 |
Author: xiaoying |
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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.)
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Size: 5120 |
Author: yellow17 |
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