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This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
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对OFDM系统的发送端和接受端信号的频谱进行仿真，还有星座图-On the OFDM system transmitter and the receiving end of the spectrum signal simulation, there are constellation
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OFDM仿真程序，采用4QAM星座映射方式-OFDM simulation program, using Constellation Mapping 4QAM
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ofdm接接收机用MATLAB仿真，可以得到相应的星座图和频谱图-Then ofdm receiver simulation using MATLAB, can be the constellation diagram and the corresponding frequency spectrum
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Matlab入门级OFDM仿真，包括每个步骤的波形，星座图图，频谱等含循环前后缀，时域加窗等，适合刚接触OFDM的学习
-Matlab entry-level OFDM simulation, including each step of the waveform, constellation Figure, spectrum containing cycle before the suffix, time-domain windowing suitable new to OFDM lear
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OFDM技术关键实现的C代码，包括FFT、QPSK、星座变换等。-The OFDM technology critical to achieve the C code, including FFT, QPSK, Constellation transform.
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Matlab入门级OFDM仿真，包括每个步骤的波形，星座图，频谱等。-Matlab entry-level OFDM simulation, including each step of the waveform, constellation, spectrum.
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基于Matlab的OFDM原理仿真，调制解调的原理仿真，通过输出的星座图进行分析-Simulation based on Matlab OFDM principle, the principle of modulation and demodulation simulation output constellation diagram analysis
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此程序模拟了一个基本的OFDM通信系统，采用16QAM调制，并绘出了星座图及输入输出信号频谱-This program simulates a basic OFDM communication system using 16QAM modulation, and draw a constellation diagram and the input and output signal spectrum
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QPSK调制以及星座图 OFDM基带处理 无导频加入-QPSK modulation and OFDM baseband constellation no pilot to join
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完成OFDM系统仿真，多径情况下画出误码率曲线，星座图映射-OFDM system simulation is completed, draw BER curves multipath case, constellation mapping
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该程序基本涵盖了OFDM-16QAM系统传输的全过程，除了调制解调外，有添加循环前缀，加窗的过程。生成图像有各个阶段的时域、频域图，以及发射前后的星座图。-This basically covers the whole process of OFDM transmission- 16 qam system, in addition to the modem, have add cyclic prefix, plus the window procedure. Generate the image
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it is a modulation technigue in ofdm. high constellation ofdm is being used to find its performance
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PAPR，削波技术，ofdm，解调，星座图，ccdf曲线，误码率-PAPR, clipping technology, ofdm, demodulation, constellation, ccdf curve, the error rate
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ofdm，256qam，MATLAB实现，误码率，星座图-ofdm, 256qam, MATLAB implementation, BER, constellation
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一个完整的OFDM通信系统，采用16QAM调制，绘制星座图和误码率曲线图。-A complete OFDM communication system, using 16QAM modulation, draw constellation and BER graph.
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channel in mimo ofdm
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scientific paper on Doppler shift extraction from QPSK mapped ofdm signal constellation
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