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main(QPSK)

于 2021-03-04 发布

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下载积分: 1 下载次数: 2

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代码说明：

说明：基于matlab实现OFDM，调制方式为QPSK，可以对信道的状态进行估计(OFDM is realized based on MATLAB, the modulation mode is QPSK, and the channel state can be estimated)

文件列表：

addnoise.m, 297 , 2008-03-04
baseMapping.m, 1778 , 2019-05-13
bitcreate.m, 781 , 2019-05-30
deMapping.m, 3105 , 2019-05-15
demoduqam16.m, 941 , 2019-05-11
DFT_estimation.m, 1461 , 2019-06-02
Ergodic_Capacity_vs_SNR.m, 970 , 2019-05-20
error_count.m, 271 , 2008-02-25
estimation.m, 7083 , 2019-05-20
guard_interval_insert.m, 490 , 2019-05-13
guard_interval_remove.m, 280 , 2019-05-13
insert_pilot.m, 2122 , 2019-05-20
lmmse_estimation.m, 979 , 2019-05-20
lr_lmmse_estimation.m, 1747 , 2009-05-27
ls_estimation.m, 681 , 2019-05-14
main.m, 11428 , 2019-06-02
main_original.m, 11170 , 2019-05-13
mse_DFT.m, 226 , 2019-05-25
mse_lmmse.m, 302 , 2019-05-25
mse_ls.m, 160 , 2019-05-25
multipath_chann.m, 1839 , 2008-03-03
ofdm.m, 1047 , 2019-05-20
plot_astrology.m, 270 , 2019-06-01
Qam_different.m, 613 , 2019-05-07
rayleighnew.m, 1758 , 2008-02-25

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5-Mbps-optical-wireless-communication-with-error-
One issue with underwater sensors is how to efficiently transfer large amounts of data collected by the node to an interrogating platform such as an underwater vehicle. It is often impractical to make a physical connection between the node and the vehicle which suggests an acoustic or optical wireless solution. For large amounts of data, the high bandwidth of underwater optical wireless is an advantage. A small, low-cost platform to demonstrate the potential of an optical wireless communications interface for underwater sensor nodes is demonstrated. To enhance the reliability and robustness of the optical wireless communication digital signal processing and error correction techniques are used. The system was tested in 3 and 7.7 meter tanks at 5 Mbps with the turbidity of the water controlled by the addition of Maalox.

2011-07-31 04:23:47下载

积分：1
STC单片机多机联级串口程序可实现.416路控制
说明： STC单片机多机连级串口程序可实现.416路控制. 串口和485都可以使用、一个程序可以用在26块控制板上，通过拔码开关给板子编号，每块板可以过滤分析所接收到不同的代码。进行继电器的动作，能返回数据，因使用定时器发送返回，不会阻塞或者代码错乱、可以用在中控，物联网，等各种控制场合。修改代码后，能达到上千路的控制。(STC single-chip microcomputer multi-level serial port program can realize 416 channel control. Serial port and 485 can be used. One program can be used on 26 control boards. Each board can filter and analyze different codes received by numbering the boards with the pull-out switch. Relay operation can return data, because the timer is used to send the return, it will not block or code confusion, and can be used in central control, Internet of things, and other control occasions. After modifying the code, it can achieve thousands of control.)

2020-03-06 23:07:17下载

积分：1
bpskmod
BPSK的扩频和调制的matlab程序，其中扩频码为m序列，包含产生m序列的matlab程序。(BPSK spread spectrum modulation matlab program, the spreading code of m-sequence contains sequence matlab program generates m.)

2020-12-01 14:09:26下载

积分：1
数字基带传输模型（单极性归零码）
说明：产生数字基带信号，加入AWGN高斯白噪声在信道中传输，检测出原始基带信号，并绘制理论和仿真误码率曲线(The digital baseband signal is generated and transmitted in the channel with AWGN white Gaussian noise. The original baseband signal is detected and the theoretical and simulation BER curves are drawn)

2021-03-13 15:59:24下载

积分：1
Designing.a.Wireless.Network
This book is very nice for designing a wireless network which describes in details how the wireless systems are designed.

2012-01-31 18:40:25下载

积分：1
Ethernet-communication-
C#串口，以太网通信代码,很详细的代码。可以使用(C# serial and Ethernet communication code, very detailed code. You can use)

2020-07-01 01:20:02下载

积分：1
ask fsk
利用matlab实现ASK和FSK调制解调过程对比他们的不同(Using MATLAB to realize the modulation and demodulation process of ASK and FSK, their differences are compared.)

2020-06-29 23:40:03下载

积分：1
2598143
在LDPC译码中用LLR方式,跌代次数分别为5和10对译码性能的影响MATLAB写的()

2018-04-18 04:37:59下载

积分：1
OLSR-Protocol-in-NS2-All-version-by-wsnlab.ir
ITS PROOTOCOL OLSR AND CODE IS IN NS2

2020-11-20 09:59:36下载

积分：1
LPM_ROM
可生成rom.初学者可以看看。很不错的。理解后生成rom很容易的。(LPM_ROM .It is good for VHDL new learner)

2009-09-18 10:17:53下载

积分：1

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