A Double Step Precise Frequency Offset Estimation Algorithm for TCM-CPM System

摘要：

Trellis coded modulation (TCM) combined with continuous phase modulation technique can be achieved high power and bandwidth efficiency. Frequency offset between a transmitter and a receiver is the most encountered problem in wireless communication systems. In this paper, we designed particular preamble bits for our TCM-CPM system, and then proposed a frequency offset estimation algorithm which need coarse estimation and fine estimation. The frequency offset can be estimated from the direct current component of Fast Fourier Transform (FFT). Simulation over AWGN channel demonstrate that the proposed algorithm can estimate the frequency offset precisely and can be applied in large Doppler frequency shift and high SNR environment.

关键词： continuous phase modulation(CPM) trellis coded modulation(TCM) frequency offset estimation algorithm

作者: Dongpei Liu Li Zhou Botao Zhang Jianfeng Zhang Hengzhu Liu

作者单位: Institute of Microelectric & Microprocessor, School of Computer National University of Defense Technology Changsha HN. P.R.China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer Engineering and Applications(2011第三届计算机工程与应用国际会议 ICCEA2011)

会议地点: 海口

会议语种:英文

页码: 97-100

在线出版日期: 2011-07-15（万方平台首次上网日期，不代表论文的发表时间）