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OFDM_Channel-estimation
OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道,是每个子信道的想干带宽,从而实现平稳衰落。搭建了完整的OFDM信道链路系统,运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计),并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)
- 2012-10-17 10:56:16下载
- 积分:1
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MIMO_OFDM联合仿真的matlab 源程序(很完整)
MIMO——OFDM系统实现,代码完整,适合练习使用(The implementation of MIMO and OFDM system)
- 2021-04-17 22:08:52下载
- 积分:1
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project
信号估计 最大似然估计模块 克拉美罗界模块(Maximum likelihood estimation modules)
- 2020-11-29 23:09:28下载
- 积分:1
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IIR-and-FIR
数字信号处理中数字滤波器的matlab实现,包括iir和FIR两种数字滤波器(Digital signal processing matlab implementation of digital filters, including two digital filters and FIR iir)
- 2020-11-13 17:39:42下载
- 积分:1
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HARQ
MATLAB实现了HARQ重传,分析误码率和信噪比间的关系,并可以修改最大重传次数(MATLAB implements the retransmission of HARQ, analyzes the relationship between the bit error rate and the signal to noise ratio, and can modify the maximum retransmission times.)
- 2018-03-04 13:05:31下载
- 积分:1
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technology-Bluetooth-wireless
关于蓝牙的设计
基于蓝牙技术的无线数据采集系统(The design is based on Bluetooth technology Bluetooth wireless data acquisition system)
- 2011-06-23 20:48:51下载
- 积分:1
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4CPM
实现完整的4CPM(h=1/2)调制解调程序,包括消息序列生成,串并转换,升抽样成形滤波,数字上变频,多项式非线性效应,AWGN信道,到接收端数字下变频,降采样,匹配滤波,接收端基带信号星座图。(Message sequence generation, serial-parallel conversion, up sampling shaping filter, digital upconversion, polynomial nonlinear effects, AWGN channel, to the receiver digital down-conversion, down-sampling, the matched filter, the receiving end the baseband signal constellation.)
- 2021-04-08 11:09:00下载
- 积分:1
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OWDM_16QAM_64
OWDM simulation QAM 16/64
- 2013-05-20 06:43:49下载
- 积分:1
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搭建BPSK+编码+交织仿真通信链路
说明: 搭建 BPSK+编码+交织仿真通信链路,仿真分析在不同信道条件下的不同译
码算法的误比特率性能。基于 matlab,搭建 BPSK+卷积编码+交织通信收发链路,
仿真参数如下: 1) 信源比特速率: 100 b R kbps = 2) 卷积编码:码率为 1/2,生成多项式为(561,753) 3) 译码方式:维特比译码(硬判决译码、软判决译码(8 比特量化)) 4) 交织:行列交织,交织器深度为 100bit,宽度为 10; 5) 仿真点数:106 1. 在 AWGN 信道下,仿真并绘出该系统在硬判决和软判决(3bit 量化)两
种译码方式下的信源误比特率曲线,并进行分析。 2. 设定某种交织器结构,在单径瑞利衰落信道( 100 d f Hz = )下,采用理 想信道估计,仿真并绘出该系统在有无交织、不同译码方式(硬判决和 软判决)时,在不同 0 b EN下的信源误比特率曲线,并进行分析。 3. 改变交织器结构,选择三种不同的交织深度(自行决定),在单径瑞利衰 落信道( 100 d f Hz = )下,仿真并绘出该系统在不同交织长度时,在不 同 0 b EN下的信源误比特率曲线,并进行分析。(Build a BPSK + encoding + interleaving simulation communication link, and analyze the different translations under different channel conditions
The bit error rate performance of the code algorithm. Based on MATLAB, BPSK + convolutional coding + interleaved communication transceiver link is built,
The simulation parameters are as follows: 1) source bit rate: 100 b r Kbps = 2))
- 2020-05-15 12:24:37下载
- 积分:1
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AMC
无线通信类的,适用于自适应调制算法,用户算法(AMC algorithm)
- 2012-05-04 11:40:39下载
- 积分:1