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Description: adi bf dsp ＱＡＭ 位映射查表法源码-Patrick bf dsp QAM mapping GA-source
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Size: 8082 |
Author: 刘微 |
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Description: adi bf dsp ＱＡＭ 位映射查表法源码-Patrick bf dsp QAM mapping GA-source
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Size: 8192 |
Author: 刘微 |
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Description: 根据输入的调制方式，对输入序列MOD_IN进行调制，分别采用BPSK, QPSK, !6QAM, 64QAM，完成对星座图的映射-According to the modulation input, the input sequence MOD_IN modulation, using BPSK. QPSK,! 6QAM, 64QAM, the completion of the mapping constellation
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Size: 4096 |
Author: feitian |
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Description: 运用matlab,实现16QAM调制与解调，串并转换，信道建立（瑞利多径信道），星座映射，是毕业设计之必备资料-Use matlab, realize 16QAM modulation and demodulation, SERDES, channel establishment (Rayleigh multi-path channel), constellation mapping, is a graduate of the necessary design information
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Size: 1534976 |
Author: guang_j |
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Description: WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling received data transmission channel Tx_signal_up specific procedures see Annex wlan_transmitter.m
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Size: 1024 |
Author: 福东方 |
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Description: 本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分，fir.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； modal.m 为主程序，完成岁各种信号的基带星座图映射、脉冲成型和调制；pi4QPSK.m 为pi/4QPSK信号的星座图映射程序；test1.m给出一个简单的频谱显示测试。-This procedure for the completion of BPSK, QPSK, pi/4QPSK, OQPSK, 8PSK, 16QAM, 32QAM, 64QAM and the modulation 128QAM simulation. Arbitrary and may be extended to MPSK and MQAM. Procedures are divided into four parts, fir.m of baseband symbol pulse sequences forming, optional rectangular pulse, raised cosine square root raised cosine pulse and pulse modal.m-based procedures, the completion of the age range of the base-band signal constellation diagram mapping, pulse shaping and modulation pi4QPSK.m for pi/4QPSK signal constellation diagram mapping procedures test1.m given spectrum shows a simple test.
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Size: 4096 |
Author: 徐哲 |
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Description: 16QAM调制解调原码，包括星座图映射，信道噪声，及解码-16QAM modulation source, including the mapping constellation diagram, channel noise, and decoding
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Size: 2048 |
Author: yanli |
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Description: matlab下的128QAM基带调制仿真，并绘制星座图-matlab under 128QAM baseband modulation simulation, and the mapping of constellation diagram
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Size: 1024 |
Author: ll |
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Description: 还在为“基于MATLAB的OFDM系统仿真”的朋友，可以看看我总结的资料！
该代码通过综合了本站中的两个源代码，在MATLAB 7.0下完成OFDM系统的完美仿真：音频数据采集->S/P转换->16QAM映射->IFFT处理->添加CP->P/S->理想/多径信道传送->……（FFT等）->传输结果比较（前后频谱图、可以直接通过听前后的音频文件来辨别系统的好坏-理想信道时音质前后相同）。在此还要感谢那两位站员提供相关的代码，也希望能对其他人有帮助。更希望本站能吸引更多的编程爱好者再创佳绩。-KEYWORD:OFDM MATLAB 7.0 CP IFFT FFT P/S S/P
Also for the " Based on MATLAB simulation of the OFDM system," a friend, you can see my summary of the information! The code through a combination of the two site source code, MATLAB 7.0 at complete perfection OFDM system simulation: Audio Data Acquisition-> S/P conversion-> 16QAM mapping-> IFFT processing-> Add CP-> P/S-> ideal/multi-path channel transmission-> ... ... (FFT, etc.)-> transmission results (before and after the frequency spectrum can be directly before and after listening to audio files to identify the system good or bad- when the ideal channel before and after the same sound quality). This would also like to thank at the two stations to provide the relevant code, also hope to have helped others. I also hope to attract more site programming enthusiasts new heights.
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Size: 8192 |
Author: sunshinepwf |
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Description: 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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Size: 1024 |
Author: 刘喆 |
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Description: OFDM transmitter, including signal mapping for M-QAM and quantizer
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Size: 5120 |
Author: 簡銘成 |
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Description: Mapper for QAM 2,4 and 6 bits, taking streams and mapping 2 symbols for Modulation
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Size: 1024 |
Author: Shaan |
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Description: 解压后将myfiest.fig，myfirst.m，Run_Draw.m放在同一个目录下，用matlab打开即可学习。
其中myfiest.fig是设计的GUI图形界面，myfirst.m是该图像界面的m文件，Run_Draw.m是该源文件中用到的一个绘图函数。
myfirst.m中给出了详细的注释，利用此例子可以快速入门matlabGUI编程。
有任何问题请联系：peiwt@126.com-After decompression myfiest.fig, myfirst.m, Run_Draw.m on the same directory, you can learn to use matlab to open. Myfiest.fig which is the graphical interface GUI design, myfirst.m is the image of m document interface, Run_Draw.m the source files used in a mapping function. myfirst.m given detailed notes, using the examples matlabGUI Quick Start program. Have any questions please contact: peiwt@126.com
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Size: 6144 |
Author: 张大玲 |
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Description: M-QAM constellation mapping
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Size: 1024 |
Author: Mate |
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Description: 对信道进行多种仿真，包括AWGN信道，信道参数，QAM映射方式和SFBC编码方式。-Of the channel to a variety of simulations, including the AWGN channel, channel parameters, QAM mapping method and SFBC encoding.
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Size: 16384 |
Author: 李静 |
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Description: 16QAM的matlab仿真,非常有用,包括Bit mapping,modulation and demodulation,Bit demapping,Parallel to serial conversion,Bit error ratio-16QAM the matlab simulation, very useful, including Bit mapping, modulation and demodulation, Bit demapping, Parallel to serial conversion, Bit error ratio
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Size: 2048 |
Author: 刘悦 |
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Description: DVB QAM符号映射!已经应用于产品.标准TS流接口-DVB QAM symbol mapping! Has been applied to products. Standard TS stream interface
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Size: 2048 |
Author: sun |
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Description: a simple qam mapping and demodulation
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Size: 1024 |
Author: juliajoseph |
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Description: Bit Error Rate for 16-QAM modulation using Gray modulation mapping
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Size: 12288 |
Author: meshuggah |
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Description: QPSK,16QAM,64QAM星座图映射，是信号处理的基础，具有参考价值-QPSK, 16QAM, 64QAM constellation mapping, is the basis for signal processing, with the reference value
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Size: 1024 |
Author: 胡晗 |
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