Description: This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz –
16,000Hz). The test files used as information files were text files.
This goal was attained both in an incoherent scheme and in a coherent scheme.
Build under Matlab code, our modem uses OFDM (orthogonal frequency division
multiplexing) modulation, synchronization by LMS sequence, channel estimation (no
equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of
2 or 4. To optimize the probability of error, these symbols were mapped using Gray
mapping.
Report Platform: |
Size: 559541 |
Author:buyop |
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Description: This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz –
16,000Hz). The test files used as information files were text files.
This goal was attained both in an incoherent scheme and in a coherent scheme.
Build under Matlab code, our modem uses OFDM (orthogonal frequency division
multiplexing) modulation, synchronization by LMS sequence, channel estimation (no
equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of
2 or 4. To optimize the probability of error, these symbols were mapped using Gray
mapping.
Report-This project aim was to build wireless software modem for data communicationbetween two computers using an acoustic interface in the voice frequency range (20Hz-20000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz-20000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz-16000Hz). The test files used as information files were text files.This goal was attained both in an incoherent scheme and in a coherent scheme.Build under Matlab code, our modem uses OFDM ( orthogonal frequency divisionmultiplexing) modulation, synchronization by LMS sequence, channel estimation (noequalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of2 or 4. To optimize the probability of error, these symbols were mapped using Graymapping.Report Platform: |
Size: 559104 |
Author: |
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Description: FPGA弹弓无线呼叫系统分发射和接收两大部分。发射部分采用锁相环式频率合成器技术-FPGA slingshot wireless call system transmitting and receiving at most two. Part of the launch phase-locked loop frequency synthesizer using technology Platform: |
Size: 628736 |
Author:w |
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Description: nRF24E1程序，包括AD，无线发射和接收，串行通信程序。-nRF24E1 procedures, including AD, the wireless transmitting and receiving, serial communication program. Platform: |
Size: 22528 |
Author:姚晓宇 |
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Description: 此程序实现无线信标定位，GPS产生的信号经过（7，4）汉明码编码后发送，接收端解码得到发送端坐标。程序分为发射和接收2部分，在Keil C下编译实现。-This procedure positioning wireless beacons, GPS signal generated by (7,4) hamming code is encoded to send, receive decoding client coordinates to be the sending end. Transmitting and receiving procedures are divided into 2 parts of the Keil C compiler under implementation. Platform: |
Size: 89088 |
Author:孙英晖 |
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Description: 《短距离无线数据通信入门与实战》一书光盘所带的源代码。
发射和接受的实例，可使用于多种无线单片机。例如CC1010,NRF9E5,NRF24E1等-《Short-range wireless data communication with the actual entry》 a CD-ROM brought the book' s source code. Transmitting and receiving instances can be used for a variety of wireless microcontroller. For example, CC1010, NRF9E5, NRF24E1, etc. Platform: |
Size: 83968 |
Author:piapia |
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Description: 无线发射接收成套原理图和PCB电路图！其中无线发射IC和接收IC是综合考虑了性价比很高的IC！其中超外差接收IC是法国一家公司的内有中文PDF资料，而且此超外差IC现在是市面我所发现的最便宜的超外差接收IC，而且以大批量投产过！-Wireless transmitting and receiving sets of the circuit! In which the wireless transmitter and receiver IC IC is very high considering the cost-effective IC! Superheterodyne receiver IC which is a French company in a Chinese PDF data, and the superheterodyne IC market is now the cheapest I' ve found the superheterodyne receiver IC, and the production of large quantities too! Platform: |
Size: 995328 |
Author:边缘人 |
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Description: 无线发射接收芯片资料！性价比较高，是国外芯片的良好替代品！-Wireless data transmitting and receiving chips! Higher cost, is a good substitute for foreign chips! Platform: |
Size: 194560 |
Author: lijun |
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Description: 绝好世界唯一的源码,本人亲写奉献MSP430超低低功耗,红外检测人体,无线发射,接收驱动远处的设备工作.一节电池工作两年.待机30na-Perfect the world' s only source, I wrote dedicated pro ultra low power MSP430 and infrared detection body, the wireless transmitting and receiving equipment, the distance driven work. A battery for two years. Standby 30na Platform: |
Size: 182272 |
Author:tecwon |
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Description: 无线发射和接受模块24L01源程序，已测试，可以使用。-Wireless transmitting and receiving modules 24L01 source, have been tested, you can use. Platform: |
Size: 4096 |
Author:peng |
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Description: MSP430单片机控制nrf24L01进行无线发射，通过硬件SPI接口，速度可上1M以上-MSP430 microcontroller to control nrf24L01 wireless transmitting and receiving hardware SPI interface, the speed can be more than 1M Platform: |
Size: 43008 |
Author:zjzssxs |
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Description: 利用cc1101设计的无线发射接收（发射机部分程序）-Cc1101 design of wireless transmitting and receiving (transmitter part of the program) Platform: |
Size: 46080 |
Author:徐佳 |
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Description: 利用cc1101设计的无线发射接收（接收机部分程序）-Cc1101 design of wireless transmitting and receiving (receiver part of the program) Platform: |
Size: 105472 |
Author:徐佳 |
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Description: nrf905用于长距离无线的发射与接收系统，这只是一个单一的检测程序，没有加其他的功能，单片机是STC89C52，这里共大家参考一下-NRF905 for long distance wireless transmitting and receiving system, this is only a single assay procedure, with no other function, single chip computer was the STC89C52, here we refer to!!! Platform: |
Size: 64512 |
Author:余文成 |
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Search - Wireless transmitting receiving