北斗卫星导航系统多进制LDPC编码性能评估

Chengeng Su; Qin Huang; Xunan Liu

doi:10.11887/j.cn.201904018

北斗卫星导航系统多进制LDPC编码性能评估

Translated title of the contribution: Performance evaluation of BDS M-ary LDPC encoding

Chengeng Su
, Qin Huang^*
, Xunan Liu

^*Corresponding author for this work

School of Electronic and Information Engineering

National University of Defense Technology
Beijing Institute of Tracking and Telecommunications Technology
National Marine Hazard Mitigation Service

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Due to the long transmission distance and low power, satellite navigation receivers may not be able to demodulate the message normally in the complex environment. Error correction encodings were commonly used in the navigation message design to improve demodulation performance. With the improvement of technology, more powerful error-correction codes have been adopted in the modernization of GNSS (global navigation satellite system). BDS (BeiDou navigation satellite system ) new signals will adopt M-ary LDPC (low density parity check) encoding. Based on the principle of M-ary LDPC codes, the software simulation and hardware test results of M-ary LDPC codes on BDS were presented. Results show that the 64-ary LDPC codes have high coding gain, and they can outperform about 0.4~0.8 dB over their binary counterparts, which will greatly improve the demodulation performance under harsh environment. The results can provide reference for the development of BDS new receivers.

Translated title of the contribution	Performance evaluation of BDS M-ary LDPC encoding
Original language	Chinese (Traditional)
Pages (from-to)	121-128
Number of pages	8
Journal	Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology
Volume	41
Issue number	4
DOIs	https://doi.org/10.11887/j.cn.201904018
State	Published - 28 Aug 2019

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title = "北斗卫星导航系统多进制LDPC编码性能评估",

abstract = "Due to the long transmission distance and low power, satellite navigation receivers may not be able to demodulate the message normally in the complex environment. Error correction encodings were commonly used in the navigation message design to improve demodulation performance. With the improvement of technology, more powerful error-correction codes have been adopted in the modernization of GNSS (global navigation satellite system). BDS (BeiDou navigation satellite system ) new signals will adopt M-ary LDPC (low density parity check) encoding. Based on the principle of M-ary LDPC codes, the software simulation and hardware test results of M-ary LDPC codes on BDS were presented. Results show that the 64-ary LDPC codes have high coding gain, and they can outperform about 0.4\textasciitilde{}0.8 dB over their binary counterparts, which will greatly improve the demodulation performance under harsh environment. The results can provide reference for the development of BDS new receivers.",

keywords = "BeiDou navigation satellite system, M-ary LDPC codes, Satellite navigation",

author = "Chengeng Su and Qin Huang and Xunan Liu",

year = "2019",

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doi = "10.11887/j.cn.201904018",

language = "繁体中文",

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journal = "Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology",

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T1 - 北斗卫星导航系统多进制LDPC编码性能评估

AU - Su, Chengeng

AU - Huang, Qin

AU - Liu, Xunan

PY - 2019/8/28

Y1 - 2019/8/28

N2 - Due to the long transmission distance and low power, satellite navigation receivers may not be able to demodulate the message normally in the complex environment. Error correction encodings were commonly used in the navigation message design to improve demodulation performance. With the improvement of technology, more powerful error-correction codes have been adopted in the modernization of GNSS (global navigation satellite system). BDS (BeiDou navigation satellite system ) new signals will adopt M-ary LDPC (low density parity check) encoding. Based on the principle of M-ary LDPC codes, the software simulation and hardware test results of M-ary LDPC codes on BDS were presented. Results show that the 64-ary LDPC codes have high coding gain, and they can outperform about 0.4~0.8 dB over their binary counterparts, which will greatly improve the demodulation performance under harsh environment. The results can provide reference for the development of BDS new receivers.

AB - Due to the long transmission distance and low power, satellite navigation receivers may not be able to demodulate the message normally in the complex environment. Error correction encodings were commonly used in the navigation message design to improve demodulation performance. With the improvement of technology, more powerful error-correction codes have been adopted in the modernization of GNSS (global navigation satellite system). BDS (BeiDou navigation satellite system ) new signals will adopt M-ary LDPC (low density parity check) encoding. Based on the principle of M-ary LDPC codes, the software simulation and hardware test results of M-ary LDPC codes on BDS were presented. Results show that the 64-ary LDPC codes have high coding gain, and they can outperform about 0.4~0.8 dB over their binary counterparts, which will greatly improve the demodulation performance under harsh environment. The results can provide reference for the development of BDS new receivers.

KW - BeiDou navigation satellite system

KW - M-ary LDPC codes

KW - Satellite navigation

UR - https://www.scopus.com/pages/publications/85071427593

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JO - Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology

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ER -

北斗卫星导航系统多进制LDPC编码性能评估

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