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Description: 高速数据传输系统中，8PSK为常用的调制方式。为了满足更高的误码率指标，本文对软判决算法进行了深入的研究，并针对两种不同的软判决算法进行了误码率仿真。-high-speed data transmission system, commonly used for 8PSK modulation. In order to meet the higher rate of error, this pair of soft decision algorithm for the in-depth study targeted at two different soft decision algorithms for BER simulation.
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Size: 408576 |
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Description: 该代码实现了am，f-msk，qpsk，mdpsk-the code achieved am, f-msk, qpsk, mdpsk
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Size: 1332224 |
Author: 崔利梅 |
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Description: Hard Viterbi QPSK in AWGN, Rayleight
soft Viterbi QAM in AWGN, Rayleight
viterbi QAM in AWGN, Rayleight
viterbi QPSK in AWGN, Rayleight
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Size: 7409664 |
Author: LeeWonju |
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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: soft Demapping QPSK : LLR computation using Euclidian distance approach, Parallel-to-Serial converter : needs I and Q components of QPSK symbols at the input
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Size: 1024 |
Author: IMM |
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Description: good version of soft Demapping QPSK : LLR computation using Euclidian distance approache, Parallel-to-Serial converter, needs I and Q componets of QPSK symbols at the input
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Size: 1024 |
Author: IMM |
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Description: LTE系统中QPSK软信息解调,Turbo编码matlab仿真程序，-soft QPSK demodulation in LTE
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Size: 2048 |
Author: 马磊 |
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Description: LTE 软解调的相关知识包括BPSK，QPSK，16QAM，64QAM-LTE related knowledge, including soft demodulation BPSK, QPSK, 16QAM, 64QAM
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Size: 983040 |
Author: 张欣 |
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Description: 通信系统仿真大作业，卷积码编码，QPSK调制，接收端维特比软判决。程序正确。-Communication system simulation a large operation, convolution coding, QPSK modulation, soft-decision Viterbi receiver. Program is correct.
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Size: 1024 |
Author: pjwgg |
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Description: Altem公司quartus
II 8．1开发环境下，完成了中频全数字解调器的FPGA实现，并对数
字下变频、载波同步、位同步等解调器的核心模块设计进行了详细的分析和说明，给出
了实现框图和仿真波形。同时在本设计中应用了Altera公司的NiosII软核处理器技术，
用于载波的大频偏校正和解调器各个部分的监测和控制。最后给出了QPSK中频全数字
解调器关键性能指标的测试方法和测试结果，测试结果表明本设计达到了预期的性能指
标要求。-The Algorithm is converted to HDL description for FPGA realization．The designs of the core Modules of demodulator, including digital down-conversion，carrier ring，bit synchronization loop design, are described in detail．And a block diagram and simulated waveforms are provide in the latter part．Also the soft-core processor technology of Altera’s NiosII is applied in the design for carrier frequency offset correction and the monitoring and control of the separate parts of demodulator．Finally, the test methods and results of key performance indicators of the IF Demodulator QPSK are given to show that the design given in this paper can reach the performance requirements expected.
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Size: 4328448 |
Author: zhuimeng |
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Description: Matlab高斯信道条件下采用QPSK和8PSK时点到点通信系统的理论和统计所得的误码率和误比特率曲线。
删余卷积码的Pb性能仿真
加入信道编码模块，绘制误比特率曲线,其中信道为加性高斯白噪声，调试为QPSK；
进行软判决和应判决，和用3/4、7/8删余码进行编码等。-Matlab gaussian channel conditions using QPSK and eight PSK point to point communication system theory and statistical the error rate and bit error rate curve.
Delete the convolution code more than Pb performance simulation
Join channel coding module, draw bit error rate curve, which channel to additive gaussian white noise, commissioning for QPSK
In the soft decision and judgment should be, and with more than 3/4, 7/8 delete code for coding, etc.
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Size: 25600 |
Author: 李浩 |
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Description: 用于学习软判决解调算法,文件中包含用于算法描述的文献,以及对应matlab代码,支持PSK,QPSK,16-QAM,64-QAM四种调制方式-Demodulation algorithm for learning soft decision, contained in the file for the algorithm described in the literature, as well as the corresponding matlab code support PSK, QPSK, 16-QAM, 64-QAM four modulation
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Size: 212992 |
Author: logic |
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Description: This document is about 16 QAM demapping of received data. But its a soft demapping method based Log likelihood ratio(llr). So results can be used as inputs for viterbi decoder or turbo decoder. It is very usefull to decrease BER for communication systems. In addition, QPSK, 64QAM etc. demappers can be derived based on this document.
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Size: 60416 |
Author: aydim turkken |
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Description: This matlab code describes soft demapper (soft bit) for different modulation types: BPSK, QPSK, PSK 8, QAM 16, QAM 64, which are considered for turbo encoding/decoding. And simulation results are also presented.
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Size: 4096 |
Author: Lonely Ghost |
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Description: BPSK,QPSK,16QAM,64QAM调制，以及软比特提取，软比特信息输入译码器，进行软判决译码。-BPSK, QPSK, 16QAM, 64QAM modulation and soft bit extracting, soft bit information input to the decoder and conduct soft-decision decoding.
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Size: 2048 |
Author: queen |
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Description: LTE中QPSK,16QAM,64QAM的软解调程序。可供相关学习者学习。是对调制解调学习的重要资料。-LTE, QPSK, 16QAM, 64QAM soft demodulation process. Related for learners. Is important information for modem learning.
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Size: 2048 |
Author: 何香 |
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