›› 2011, Vol. 24 ›› Issue (5): 53-.

• 论文 • 上一篇    下一篇

鉴相器频率对调频连续波信号线性度影响

王坤鹏,牛中奇,杨博,朱伟   

  1. (1.西安电子科技大学 电子工程学院,陕西 西安 710071;2.国家知识产权局 实用新型部电学处,北京 100086)
  • 出版日期:2011-05-15 发布日期:2011-05-19
  • 作者简介:王坤鹏(1985-),男,硕士研究生。研究方向:车载防撞雷达实用化。牛中奇(1945-),男,博士生导师。研究方向:时域电磁学,计算电磁学,生物电磁学。杨博(1986-),男,硕士研究生。研究方向:车载防撞雷达实用化。朱伟(1977-),男,审查员。研究方向:电气工程。
  • 基金资助:

    国家自然科学基金资助项目(30870577)

Research on the Influence of Changing the Frequency of Phase Detector on the Linearity of the Frequency Modulated Continuous Wave Signal

 WANG Kun-Feng, NIU Zhong-Qi, YANG Bo, ZHU Wei   

  1. (1.School of Electronics Engineering,Xidian University,Xi'an 710071,China;
    2.Department of Utility Model Examination,State Intellectual Property Office,Beijing 100086,China)
  • Online:2011-05-15 Published:2011-05-19

摘要:

研究了一种通过快速改变锁相环分频比产生调频连续波信号的方案,讨论了锁相环中鉴相器频率对信号线性度的影响。使用ADS进行建模仿真,通过对仿真结果的分析,得出结论,在适当小的分频比跳变间隔,可以产生精度高、线性度好的调频信号;鉴相器频率越高,产生的调频信号的调频线性度越好。

关键词: 调频连续波, 鉴相器, 锁相环, 线性度

Abstract:

A scheme for producing a linear frequency modulation signal generated by rapidly changing the division ratio of the phase locked loop is studied in this wok.The impact of the phase detect frequency of the phase detector on the linearity of the sweeping signal is discussed.By analyzing the results of ADS modeling simulation,it is concluded that a FMCW signal with high precision and good linearity can be observed with an appropriate interval of the change of division radio and a higher frequency of the phase detector leads to better linearity of the FMCW signal.

Key words: frequency modulated continuous wave;phase detector;phased locked loop;linearity

中图分类号: 

  • TN958.95