数字通信中2FSK调制解调器的设计实现
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:


Design and Implementation of 2FSK Modem in Digital Communication
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    针对数字通信中数字基带信号的调制解调问题,基于Quartus13.1使用硬件描述语言Verilog设计并实现了2FSK调制解调系统;利用分频器得到不同的载波频率,使用伪随机序列产生基带信号,用键控频移法进行信号的调制,过零检测法实现信号的解调得到基带信号;对系统模块化分层设计并且通过了RTL级仿真验证,将各模块顶层例化连接进行系统验证,信号的调制解调正常且无误码产生,并将此2FSK调制解调器应用到实际的数字通信系统中,构建了紫外激光通信系统,经多次测试,系统在光束入射角度为π/4,距离50 m处实现了误码率为10-4、通信速率为600 bps的极低速率通信。

    Abstract:

    In this paper, a 2FSK modulation and demodulation system is designed and implemented based on Quartus13.1 using the hardware description language verilog for digital modulation and demodulation of digital baseband signals in digital communication.The frequency divider is used to obtain different carrier frequency, the pseudorandom sequence is used to generate baseband signal, key frequency shift method for signal modulation, zerocrossing detection signal to achieve the baseband signal. The entire system of a modular design verification gets the right function, no error 2FSK modem. And the 2FSK modem is applied to the ultraviolet laser communication system after several tests,the system reaches the beam incident angle of the distance of 50m, the system can realize the extremely low rate communication with the error rate of 10-4 and the communication speed of 600bps

    参考文献
    相似文献
    引证文献
引用本文

吴常昊, 肖沙里.数字通信中2FSK调制解调器的设计实现[J].重庆工商大学学报(自然科学版),2018,35(2):67-71
WU Changhao, XIAO Shali. Design and Implementation of 2FSK Modem in Digital Communication[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2018,35(2):67-71

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-03-28
×
2023年《重庆工商大学学报(自然科学版)》影响因子稳步提升