A modified carrier frequency estimator for DVB-S2 system

被引：0

作者：

Wu, Nan ^{[1
]}

Wang, Hua ^{[1
]}

Kuang, Jingming ^{[1
]}

Fei, Zesong ^{[1
]}

Fan, Guangrong ^{[1
]}

机构：

[1] Beijing Inst Technol, Modern Comm Lab, Dept E E, Beijing 100081, Peoples R China

来源：

2007 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-9 | 2007年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A Modified M&M frequency estimation algorithm for DVB-S2 system is proposed in this paper. This estimator provides a larger estimation range compared to the well known Fitz and L&R methods and achieves CRB in the whole SNR operation range of DVB-S2, with a little increase in computational complexity. The enlarged estimation range will reduce the acquisition time of the coarse frequency synchronizer in a two-step carrier frequency recovery scheme. Minimum accumulation lengths to achieve a certain RMS frequency estimation error for the L&R and Modified M&M estimator at different SNR are presented. A variable accumulation length scheme based on SNR estimation or coding/modulation scheme employed in system is proposed to minimize the acquisition time in the fine frequency recovery.

引用

页码：2428 / 2432

页数：5

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