Earticle

초록

영어

This paper addresses the estimation of carrier frequency for cyclostationary AM, BPSK, and QPSK signals in the presence of interfering signals and α-stable impulsive noise. The performance of conventional DFT algorithms suffers from severe degradation in impulsive noise environments. By fusing cyclostationarity and fractional lower-order statistics, we introduce a signal selective carrier frequency estimation algorithm for AM, BPSK, and QPSK signals. The new method exploits p th-order cyclostationarity property of signals in impulsive noise. Compared with the existing DFT algorithm, the new method is highly tolerant to interference, Gaussian and non-Gaussian impulsive noises. The performance of the new algorithm is studied using simulations in a variety of interference and noise conditions. Simulation results indicate that the proposed algorithm outperforms the conventional DFT method in impulsive noise.

목차

Abstract
 1. Introduction
 2. Problem Formulation
 3. Robust Carrier Frequency Estimation Algorithm
 4. Simulation Results
  4.1. The p th-Order Cyclic Spectrum
  4.2. Effects of Impulsive Noise
  4.3. Effects of Impulsive Noise
  4.4. Carrier Frequency Estimation
 5. Conclussions
 Acknowledgments
 References

키워드

저자

• Yang Liu [ College of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116023, China ]
• Yong Tie [ College of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China ]
• Shun Na [ College of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China ]
• Shenglong Tan [ College of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605