基于SDR平台的VMCK信号传输系统  

Transmission system of VMCK signals based on SDR

作　　者：李亚斌[1] 郑国莘[1] 尹晓宇 杨柳[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建重点实验室,上海200072

出　　处：《电子测量技术》2013年第4期116-120,共5页Electronic Measurement Technology

基　　金：国家自然科学基金重点项目(61132003)面上项目(61171086);上海市重点学科项目(S30108)

摘　　要：甚小线性调频键控(very minimum chirp keying,VMCK)是一种高效的超窄带调制技术,具有窄带宽占用、强边带抑制、数据传输效率高等优点。基于Lyrtech公司的SFF SDR平台,通过编写M文件产生VMCK信号源,再使用Simulink与Lyrtech Software进行VMCK信号传输系统的模型建立。软件仿真成功后使用Xilinx公司的SystemGen进行代码编译,并将编译后的代码载入硬件平台以实现VMCK信号的发送与接收。实验结果表明,基于SDR平台的VMCK信号调制、发送与接收达到了预期目标,验证了以该模型作为基础,在SDR平台上进行VMCK的发送与接收的可行性,为VMCK信号的研究提供了一种新的途径。Very minimum chirp keying （VMCK） is a novel ultra narrow band modulation method with the advantages of narrow band occupancy,intensive sideband suppression, and high transmission efficiency. VMCK signals is generated by programming M-file of MATLAB based on SFF SDR platform of Lyrtech Company. The model of VMCK signals transmission system is built by using Simulink and Lyrtech software,and then the code is compiled by using SystemGen of Xilinx Company after the simulation. Finally the compilation code is downloaded to the hardware platform to realize the transmission and reception of VMCK signals. The experimental results show that the expected goals of VMCK signals modulation,transmission and reception are obtained,and the feasibility of VMCK modulation based on SDR is validated. The SDR platform provides a new approach for the VMCK research in the future.

关 键 词：甚小线性调频键控信号 软件无线电 SIMULINK 超窄带 

分 类 号：TN914[电子电信—通信与信息系统]