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Description: ofdm system programme transmitter
Platform: |
Size: 1393 |
Author: 郭营 |
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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: 红外线发射与接收源程序 Infrared transmitter and receiver source
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Size: 23064 |
Author: 434633320@qq.com |
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Description: 调频发射机故障与调试专家系统-FM transmitter fault and debugging expert system
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Size: 2048 |
Author: 华仔 |
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Description: RS232数据发送器,适合于VHDL的初学者参考-RS232 data transmitter, suitable for beginners VHDL reference
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Size: 4096 |
Author: 波波 |
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Description: 基于BH1414的立体声FM发射器程序,用8051控制,uV2开发环境-based on the stereo FM transmitter procedures, with 8,051 control, uV2 Development Environment
Platform: |
Size: 38912 |
Author: 杨心怀 |
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Description: 超宽带发射机的输出程序，利用函数的调用，其中有多个子程序-UWB transmitter output procedures, the use of function call, a number of subprogram
Platform: |
Size: 2048 |
Author: 陆路 |
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Description: QPSK Transmitter and I/Q Correlator Receiver is based on the technique of queing the information in a bit stream and on the receving end using FFT and some additive filters, as the addition of noise is made to infuse the need of a filter. Necessarily a Baseband filter is used. Modulation acheived at the receiving end.
-QPSK Transmitter and I/Q Correlator Recei ver is based on the technique of the infor queing mation in a bit stream and on the receving end usi ng FFT and some additive filters, as the addition of noise is made to infuse the nee d of a filter. Necessarily a Baseband filter is u sed. Modulation achieved at the receiving end.
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Size: 4096 |
Author: xiaoying |
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Description: ATSC发送端部分，ATSC标准特有的TCM编码，共6个文件，包含tb文件，已通过仿真，没有问题，verilog代码-ATSC transmitter, the ATSC standard TCM unique coding, a total of six documents, tb-contained documents, had passed through simulation, no problem, verilog code
Platform: |
Size: 5120 |
Author: 刘超 |
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Description: nRF24L01 software driver running on
AT89C5131A micrcontroller.-nRF24L01 driver software running on AT89C 5131A micrcontroller.
Platform: |
Size: 197632 |
Author: 焦春来 |
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Description: 倒车雷达源代码，超声波发射，接收，测距。-source code reversing radar, ultrasonic transmitter and receiver, location.
Platform: |
Size: 229376 |
Author: 贾明 |
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Description: 该程序仿真CDMA接收机的功能，包括解扩，解交织，信道编码(卷积码)，解码，信源编码(CRC)解码5个功能模块，生成用于数字基带传输的信号序列。
仿真CDMA发射机的功能，包括随机序列的产生，信源编码尾比特添加, 信道编码(卷积编码)，分组交织和扩频调制6个功能模块，生成用于数字基带，传输的信号序列，输出还包括用于解调所需要的信源编码尾比特值add_bits，交织器的尾比特值i_add_bits-CDMA receiver functions, including despreading, Xie intertwined, channel coding (convolutional codes), decoded, the source code (CRC) decoder five functional modules, production figures for the base band signal transmission sequence. Simulation CDMA transmitter functions, including random sequence generation, the source coding bit late add, Channel Coding (coding), a spread-spectrum modulation intertwined and six functional modules, production figures for the base-band, The transmission signal sequence, and the output is also included for the modems needed source coding bit value add_bits tail, interleaver value of the last bit i_add_bits
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Size: 3072 |
Author: 刘洪 |
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Description: OFDM系统 发射、接收源程序，还有一篇文章说明哦，是OFDM系统学习不错的例子-OFDM system transmitter and receiver of the source, there is an article note Oh, OFDM system is a good example of learning
Platform: |
Size: 380928 |
Author: linghe |
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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.
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Size: 1024 |
Author: 栾天 |
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Description: Virtual GPS NEMAcode transmitter using serial port, AVR Atmega32 microcontrooler
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Size: 39936 |
Author: Fahad |
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Description: 该程序是整个OFDM发射机的程序，希望对做这方面的朋友用些帮助，也希望朋友们和我一起探讨OFDM收发信机。-The program is the whole OFDM transmitter of the program, want to do this in a friend with some help, I hope my friends join me to explore OFDM transceiver.
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Size: 2644992 |
Author: zhougongming |
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Description: OFDM通信系统发送端完整verilog代码-OFDM communication system transmitter complete verilog code
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Size: 2273280 |
Author: 王练 |
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Description: it is VHDL code for Digital fm modem transmitter block.
Platform: |
Size: 10240 |
Author: anbu |
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Description: 调频发射机，(1) 在发射频率范围内，预置5个频率点，用手动方式选择其中一个发射
(2) 进一步提高通信距离；
(3) 调制失真不大于10
(4) 10.(4)其他特色与创新。
-FM Transmitter, (1) in the firing frequency range, the preset frequency of 5 points manually select one of the launch (2) further enhance the communication distance (3) modulation distortion is less than 10 (4) 10 . (4) other characteristics and innovation.
Platform: |
Size: 5120 |
Author: 梁蛟龙 |
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