Research and implementation of high-speed and low-complexity reconfigurable L& R algorithm

被引：0

作者：

Hu W. ^{[1
,2
]}

Wang Z. ^{[1
]}

Mei R. ^{[1
,2
]}

Chen X. ^{[1
,2
]}

机构：

[1] Key Laboratory of Electronics and Information Technology for Space System, National Space Science Center, Chinese Academy of Sciences, Beijing

[2] School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing

来源：

Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2022年 / 44卷 / 05期

关键词：

Accumulator; Decomposition; High-speed; Low-complexity; Modular; Reconfigurable;

D O I：

10.12305/j.issn.1001-506X.2022.05.31

中图分类号：

学科分类号：

摘要：

A high-speed, low-complexity, reconfigurable frequency offset recovery implementation scheme based on the L& R (Luise and Reggiannini) algorithm is proposed to meet the high-speed and high-reliability requirements of the satellite payload data transmission system. The function of the algorithm is decomposed and modularized to facilitate the implementation of the algorithm logic architecture. The decomposed autocorrelation function modules are reused to reduce the resource consumption of the multiplier. The autocorrelation function of the pilot is superimposed in multiple sections to improve the accuracy of the L& R algorithm. The results show that the demodulation performance loss of the high-speed, low-complexity, reconfigurable frequency offset recovery scheme is close to 0 dB. Compared with the direct structure, the optimized algorithm can reduce the multiplier consumption by 92.59%, and the decomposed autocorrelation function module has reusability and reconfiguration. The algorithm can work at operating frequency up to 370.37 MHz, which has an extremely high application value in high-speed receivers. © 2022, Editorial Office of Systems Engineering and Electronics. All right reserved.

引用

页码：1685 / 1693

页数：8

共 29 条

[1] Digital video broadcasting (DVB)
[2] second generation framing structure, channel coding and modulation systems for broadcasting, interactive services, news gathering and other broadband satellite applications, (2005)
[3] KIM H J, SEO J S., Carrier frequency offset estimation for faster-than Nyquist transmission in DVB-S2 systems, Proc.of the IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, (2016)
[4] ZHANG Y., Research on key techniques in application of VCM/ACM in satellite data transmission link, (2019)
[5] LUISE M, REGGIANNINI R., Carrier frequency recovery in all-digital modems for burst-mode transmissions, IEEE Trans.on Communications, 43, 2, pp. 1169-1178, (1995)
[6] KAY S., A fast and accurate single frequency estimator, IEEE Trans.on Acoustics Speech & Signal Processing, 37, 12, pp. 1987-1990, (1990)
[7] FITZ M P., Planar filtered techniques for burst mode carrier synchronization, Proc.of the Global Telecommunications Conference, pp. 365-369, (1991)
[8] MENGALI U, MORELLI M., Data-aided frequency estimation for burst digital transmission, IEEE Trans.on Communications, 45, 1, pp. 23-25, (1997)
[9] JIANG Y, TING W C, VERAHRAMI F B, Et al., A carrier frequency estimation method of MPSK signals and its systolic VLSI implementation, (1999)
[10] GONG F K, SHANG G C, LI Y, Et al., Initial-estimation-based adaptive carrier recovery scheme for DVB-S2 system, IEEE Trans.on Broadcasting, 58, 4, pp. 654-659, (2012)

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