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main(64QAM)
说明: OFDM计算,调制方式为64QAM,可以对信道的信息进行估计(OFDM calculation, modulation mode is 64QAM, can estimate the channel information)
- 2021-03-04 15:38:52下载
- 积分:1
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bpsk_Awagn_Rayleigh
说明: 实现了一个直接扩频系统,使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下,误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m
Steps for simulation:
1] Run jakesmodel.m first
2] Then run bpsk_spread.m .
3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented
4] The resulting performance is stored in BER_awgn.
5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file.
6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable.
7] Run the simulation.
To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
>>semilogy([1:8],BER_awgn(1:8), g* )
hold on
semilogy([1:8],BER_ray(1:8), -.b* )
hold on
grid on )
- 2010-03-22 23:11:17下载
- 积分:1
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prn_ambig
用matlab写的m序列的模糊函数,运行后生成二维和三维仿真图(using Matlab m-sequences written by the fuzzy function after the operation generated 2D and 3D simulation map)
- 2007-05-22 15:48:26下载
- 积分:1
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TestProdave
西门子通讯软件prodave测试程序,可直接高速读取s7300,200 系列plc数据,比opc方式实时性强很多(Siemens Communication Software prodave test program, high-speed read directly s7300, 200 series plc data, real-time than the way a lot stronger opc)
- 2010-09-17 16:02:16下载
- 积分:1
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yubianma
BD预编码 基于完整信道信息的MIMO预编码仿真(failed to translate)
- 2013-05-02 16:03:02下载
- 积分:1
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icmpCheater
给任意IP地址发送一个欺骗icmp包,发送方的IP地址和MAC地址可以随意填写(To deceive any IP address to send a icmp packet, the sender' s IP address and MAC address can be free to fill)
- 2013-07-12 13:07:07下载
- 积分:1
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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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Desktop
说明: In this paper, a new direction-of-arrival (DOA) estimation method based on multiple Toeplitz matrices reconstruction is proposed for coherent narrow band signals with a uniform linear array (ULA).(Even in the case of a low signal-to-noise ratio and low snapshot number with half the array aperture reduced, the new method provides good performance on estimation and resolution.)
- 2020-12-17 21:09:11下载
- 积分:1
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matched_filter1
次程序用来仿真线性调频脉冲下的一维距离像,可以对比压缩前后的目标回波信号(Second program is used to simulate the next chirp like a one-dimensional distance, you can compare before and after the target echo signal compression)
- 2011-11-24 10:36:11下载
- 积分:1
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Realization_of_QPSK
说明: QPSK的MATLAB实现包括发送数据、QPSK比特映射、成型滤波、载波调制、载波解调、收成型匹配、IQ抽样判决、接收比特数据恢复8个模块(The MATLAB implementation of QPSK includes eight modules: sending data, QPSK bit mapping, shaping filtering, carrier modulation, carrier demodulation, shaping matching, IQ sampling decision and receiving bit data recovery.)
- 2019-04-23 10:10:31下载
- 积分:1