›› 2013, Vol. 26 ›› Issue (11): 42-.

• 论文 • 上一篇    下一篇

欠采样相关时差算法分析及多普勒误差校正

崔昕昕   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2013-11-15 发布日期:2013-11-19
  • 作者简介:崔昕昕(1989—),男,硕士研究生。研究方向:雷达信号处理。E-mail:cuixinxin12@126.com

Subsampling Relevant Difference Algorithm and Doppler Error Correction

CUI Xinxin   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071 China)
  • Online:2013-11-15 Published:2013-11-19

摘要:

针对高频信号时差估计的多解模糊问题,通过多周期取点采样法完成对信号在欠采样条件下的恢复,降低了处理复杂度。将该恢复信号用于有噪声干扰条件下的相关时差估计,在不同信噪比和采样频率的情况下给出了其性能分析,并做了相应的多普勒校正,仿真实验证明了校正方法的正确性。

关键词: 欠采样, 相关法, 时差估计, 多普勒校正

Abstract:

Signals are restored by multi-period sampling to overcome the time-delay of sub-sampling high frequency signals and reduce the complexity of estimation.These signals are used for the time-delay estimation with noise interference.The performance analysis and Doppler error correction are given.Simulations prove the validity of this method.

Key words: sub sampling;correlation method;time delay estimation;doppler error correction

中图分类号: 

  • TN957