A stability algorithm for high-level QAM carrier recovery

Author

Zhong, Ziming ; Wang, Qing ; Xu, Hengfei ; Kang, Zhangli

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

9

fYear

2010

fDate

9-11 July 2010

Firstpage

793

Lastpage

796

Abstract

This paper proposes a structure of the joint frequency-phase carrier recovery loop for all-digital Quadrature Amplitude Modulation (QAM)receivers. The steady-state estimation variance is greatly reduced by introducing a non-zero-mean input to the Stop-and-Go controller. It has been verified by simulation tools that the circuit can acquire frequency offset up to 6% of the symbol rate and phase offset up to 30 degree in only 11000 symbol periods, while its steady-state phase jitter also significantly reduces to 0.11 degrees.

Keywords

jitter; quadrature amplitude modulation; radio receivers; stability; QAM receivers; all-digital quadrature amplitude modulation; high-level QAM carrier recovery; non-zero-mean input; stability algorithm; steady-state estimation variance; steady-state phase jitter; stop-and-go controller; Integrated circuit modeling; Noise measurement; Quadrature Amplitude Modulation; carrier recovery; frequency detection; phase detection; stability algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5537-9

Type

conf

DOI

10.1109/ICCSIT.2010.5563799

Filename

5563799