A new Doppler Spread Estimation Algorithm Based on Zero Crossings of The Auto-correlation

• Main Authors: Altag Ali, Gassan, Jeoti , Varun, Manzoor, Shahid
• Format: Conference or Workshop Item
• Published: 2010
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utp.edu.my/4812/1/gassanicias10.pdf; http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5716204; http://eprints.utp.edu.my/4812/
• Institution: Universiti Teknologi Petronas

The Doppler spread, or evenly, the mobile speed of motion, is an evaluation of the spectral spreading of mobile fading channel. A precise estimation of the mobile speed and/or velocity is of great significance in wireless mobile applications which needs the acquaintance of the rate of the channel variations. In this article we propose the use of the auto-correlation of the in-phase component of the received signal to estimate the maximum Doppler shift of the mobile communication system. The proposed algorithm relies on the zero crossing point of the auto-correlation function of the in-phase part of the received signal. A comparison between our proposed algorithm and the algorithm proposed by Tevfik Yucek in term of the Normalized Mean Square Error has been shown.