Description: I=8，Fs=25KHz时的8个调幅（AM）信号的信道化发射机仿真结果，8路信道化软件无线电发射机MATLAB具体程序如下！-I = 8, Fs = 25KHz at 8 AM (AM) signal of the channel transmitter simulation results, 8-way channel software radio transmitter MATLAB following specific procedures! Platform: |
Size: 1002 |
Author:刘超 |
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Description: The basic parts of the BFSK transmitter are the preamble and the data input circuit. The preamble sequence is positioned in front of each packet of 122 bits for a total of 128 bits packet. The main purpose of the preamble is to facilitate the reception, providing both bit and packet synchronization. The data input circuit mainly consists from memory elements and a convolutional encoder with r=1/2. Thus, the input bits must be stored in a temporary memory and be partitioned in blocks of 61 bits. Then the convolutional encoder doubles the bits and adds two more trail bits at the end of the message. A multiplexer makes sure that that the correct sequence, choosing between preamble and encoded bit, is propagating to the next stage. The next stage of the transmitter consists of two direct digital synthesizers (DDS), and a multiplexer that is fed with zeros and ones to choose between the two frequencies. For each bit, we allow 64 samples of the respective frequency to be transmitted. Although the implementation of the selection between the two frequencies is strait forward, the enable port of the multiplexer should be used along with a Matlab Code (MCode) block in order to prevent the propagation of some initial undefined states during initialization. The only functionality of the MCode block is to enable the multiplexer after the first bit of the preamble is detected. Finally, pulse shaping is not used and the addition of a single filter after the last multiplexer would suffice to implement this functionality. Platform: |
Size: 31381 |
Author:publicxz |
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Description: I=8，Fs=25KHz时的8个调幅（AM）信号的信道化发射机仿真结果，8路信道化软件无线电发射机MATLAB具体程序如下！-I = 8, Fs = 25KHz at 8 AM (AM) signal of the channel transmitter simulation results, 8-way channel software radio transmitter MATLAB following specific procedures! Platform: |
Size: 1024 |
Author:刘超 |
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Description: wcdma系统的仿真，c语言编写。包括发射、接收、信道、信号检测的程序。可以整体运行。-WCDMA system simulation, c languages. Including the transmitter and receiver, channel, signal detection procedures. Can the overall operation. Platform: |
Size: 140288 |
Author:周正 |
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Description: QPSK发送机，信号源为随机二进制序列，经串并变换后，转换成双极性信号发送-QPSK transmitter, the signal source for random binary sequence, series and transform, change the polarity signal sent in pairs Platform: |
Size: 10240 |
Author:lk |
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Description: 发射机设计
利用matlab实现的通信系统发射机的源代码。-Transmitter design using matlab to achieve the communication system transmitter of the source code. Platform: |
Size: 1024 |
Author:栾天 |
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Description: 认知无线电是一种通过与其运行环境交互而改变其发射参数提高频谱利用率的新的智能技术。-Cognitive radio is viewed as a novel approach that can change its transmitter parameters based
on interaction with the environment where it operates and can alSO improve its spectrum access and efficiency． Platform: |
Size: 215040 |
Author:deng |
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Description: MATLAB program for OFDM generation and reception
This is a simple MCM communications system. The code is pretty self-explanatory. Here I have not used the cyclic prefix.
Transmitter End:
1. Generate random serial data with M symbols (RANDSRC will do this)
2. Perform modulation (4-PSK = QPSK for now)
3. Serial to parallel
4. IFFT
5. Parallel to serial
Receiver end
Just opposite of transmitter end.
Platform: |
Size: 1024 |
Author:snapaj |
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Description: It contains the source code for the OFDM simulation in different types of fading environment and under different schemes ike bpsk, gmsk, msk, etc.Also it contains the transmitter design for the OFDM Platform: |
Size: 40960 |
Author:Vikas |
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Description: This source code describes the OFDM transmitted waveform at the transmitter both in frequency as well as time domain
Platform: |
Size: 1024 |
Author:neelam |
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Search - transmitter matlab