| 基于FPGA的PPM调制可见光图像传输系统 |
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| 引用本文： | 何家祥,万生鹏,宋早标,杨思玉,徐津. 基于FPGA的PPM调制可见光图像传输系统[J]. 应用光学, 2019, 40(1): 162-166. DOI: 10.5768/JAO201940.0108002 |
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| 作者姓名： | 何家祥 万生鹏 宋早标 杨思玉 徐津 |
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| 作者单位： | 南昌航空大学 江西省光电检测技术工程实验室，江西 南昌 330063 |
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| 基金项目： | 国家自然科学基金61465009江西省主要学科学术和技术带头人资助计划20172BCB22012南昌航空大学研究生创新专项资金项目YC2017 052 |
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| 摘 要： | 利用FPGA(field-programmable gate array,现场可编程门阵列)为主控芯片,实现了5Mbit/s的2-PPM(pulse position modulation,脉冲位置调制)调制可见光图像传输系统。整个系统分为发射端与接收端两大模块,全部由FPGA实现。将处理好的图片信号由上位机通过串口发送到FPGA中,经过调制转换为2-PPM信号,并设计了信号传输数据帧格式,然后调制到红光LED(light emitting diode)上并发送出来;在接收端,根据数据帧格式完成了数据信号的同步和解调,并将解调后恢复的图像在液晶屏上显示出来。实验证明该系统可以实现可见光图像信号的传输。
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| 关 键 词： | 可见光通信 脉冲位置调制 现场可编程门阵列 调制解调 |
| 收稿时间： | 2018-08-30 |
FPGA-based PPM modulated visible light image transmission system |
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| HE Jiaxiang,WAN Shengpeng,SONG Zaobiao,YANG Siyu,XU Jin. FPGA-based PPM modulated visible light image transmission system[J]. Journal of Applied Optics, 2019, 40(1): 162-166. DOI: 10.5768/JAO201940.0108002 |
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| Authors: | HE Jiaxiang WAN Shengpeng SONG Zaobiao YANG Siyu XU Jin |
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| Affiliation: | Jiangxi Provincial Photoelectric Detection Technology Engineering Laboratory, Nanchang Aeronautical University, Nanchang 330063, China |
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| Abstract: | A 5 Mbit/s 2-pulse position modulation(PPM) modulated visible light image transmission system was realized, using field-programmable gate array (FPGA) as the main control chip. The whole system was divided into two modules: transmitter and receiver, all of which were implemented by FPGA.Firstly, the processed picture signal was sent to the FPGA through the serial port by the host computer, and modulated into 2-PPM signal, the signal transmission data frame format was designed, then modulated onto the red light emitting diode (LED) and sent out. Secondly, at the receiving end, the synchronization and demodulation of the data signal were completed according to the data frame format, and the image recovered after demodulation was displayed on the liquid crystal screen. Experiments show that the system can realize the transmission of visible light image signals. |
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| Keywords: | visible light communication pulse position modulation field-programmable gate array modulation and demodulation |
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