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ofdm_system

于 2009-01-09 发布文件大小:138KB

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ofdm系统matlab仿真m程序，包括信道编解码，多径信道，信道估计以及误码率统计等功能(matlab simulation m OFDM system procedures, including channel coding and decoding, multi-path channel, channel estimation, as well as features such as bit error rate statistics)

文件列表：

ofdm system
...........\BERtheoretical.m
...........\bin_coef.dll
...........\bin_coef.m
...........\bit_symbol.m
...........\channelSUI.m
...........\CIRpowers.m
...........\createsymbol.m
...........\cyclic.m
...........\decoder.m
...........\draw.m
...........\encoder.m
...........\estimatechannel.m
...........\extract_data.m
...........\find_index.m
...........\generatedata.m
...........\generatepilot.m
...........\genh.m
...........\gray2bi.m
...........\graytable.m
...........\interleaving.m
...........\mapping.m
...........\noise.m
...........\parameters_constellation.m
...........\parameters_SUI.m
...........\pb_pam_ray.m
...........\pb_psk_ray.m
...........\pb_qam_ray.m
...........\random.m
...........\receiver.m
...........\ReedSolomon.m
...........\substrleft.m
...........\systems.m
...........\TestBW.m
...........\TestChannels.m
...........\TestCP.m
...........\TestEncode.m
...........\TestMods.m
...........\transmitter.m
...........\viterbi.m
...........\wimax.m

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huffmancode.GOOD
1、利用哈夫曼编码进行通信可以大大提高信道利用率，缩小信息传递时间，降低传输成本(1, the use of Huffman coding can be greatly improved communication channel utilization, reducing the information transmission, reduce transmission costs)

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2010-01-16 22:21:24下载

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实现16QAM完整的调制解调系统，包括基带信号串并转换，星座图映射，升抽样成形滤波，升采样半带滤波，数字上变频，功放的多项式非线性效应，加性高斯白噪声信道，接收端下变频，降采样，匹配滤波，绘制接收端星座图。(16QAM modulation and demodulation realize the complete system, including the baseband signal string and conversion, constellation mapping, sampling shaping filter liter, half liter sampling with filtering, digital up-conversion, amplifier polynomial nonlinear effects, additive white gaussian noise channel, the receiver end down-conversion, down-sampling, matched filtering, draw the receiver constellation.)

2020-12-08 15:19:20下载

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2008-03-16 22:18:55下载

积分：1
MIMO-OFDM
运用matlab搭建了MIMO—OFDM系统，并仿真了该系统在awgn信道，平坦衰落和多径信道下的误码率。(Using matlab built a MIMO-OFDM systems, and simulation of the system in awgn channel, flat fading and multipath channel BER.)

2011-11-10 20:54:37下载

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低信噪比条件下的高分辨DOA估计算法,提出一种基于多级维纳滤波器(MSWF)的信号波达方向(DOA)估计算法。通过测试信号子空间的估计值与噪声子空间的正交性实现 DOA粗估计，通过测试MSWF 分解的互相关函数实现信号 DOA 的精估计。仿真实验表明，在低信噪比条件下，该算法比已有的子空间类算法有更好的分辨率和误差性能。(Put forward a kind of multistage Wiener filter (MSWF) based on the signal direction of arrival (DOA) estimation algorithm. By testing the orthogonality between the estimated values of the signal subspace and the noise subspace Now DOA coarse estimation, by testing the MSWF decomposition of the cross-correlation function to achieve accurate estimation of signal DOA. Simulation results show that the proposed algorithm is more efficient than the existing subspace in low SNR conditions The inter class algorithm has better resolution and error performance.)

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2016-02-16 07:51:52下载

积分：1

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