LEO卫星扩频信号的高精度参数估计方法

金磊; 曾富华; 古礼衍; 王媛

doi:10.11959/j.issn.1000-0801.2025105

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LEO卫星扩频信号的高精度参数估计方法

研究与开发 | 更新时间：2025-06-28

- LEO卫星扩频信号的高精度参数估计方法
- High-accuracy parameter estimation algorithm for spread spectrum signal in LEO satellite communication
- 电信科学 2025年41卷第6期页码：70-80
- 作者机构：
  
  中国西南电子技术研究所，四川成都 610036
- 作者简介：
  
  [ "金磊（1989- ），男，中国西南电子技术研究所高级工程师，主要研究方向为飞行器测控基带处理技术。" ]
  [ "曾富华（1983- ），男，中国西南电子技术研究所正高级工程师，主要研究方向为飞行器测控系统总体设计。" ]
  [ "古礼衍（1990- ），女，中国西南电子技术研究所工程师，主要研究方向为飞行器测控跟踪同步技术。" ]
  [ "王媛（1993- ），女，中国西南电子技术研究所工程师，主要研究方向为飞行器测控信号捕获技术。" ]
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2025105
  中图分类号： TN914.4
- 收稿：2024-12-23，
  
  修回：2025-03-26，
  
  纸质出版：2025-06-20
- 稿件说明：
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金磊,曾富华,古礼衍等.LEO卫星扩频信号的高精度参数估计方法[J].电信科学,2025,41(06):70-80.

JIN Lei,ZENG Fuhua,GU Liyan,et al.High-accuracy parameter estimation algorithm for spread spectrum signal in LEO satellite communication[J].Telecommunications Science,2025,41(06):70-80.
金磊,曾富华,古礼衍等.LEO卫星扩频信号的高精度参数估计方法[J].电信科学,2025,41(06):70-80. DOI： 10.11959/j.issn.1000-0801.2025105.

JIN Lei,ZENG Fuhua,GU Liyan,et al.High-accuracy parameter estimation algorithm for spread spectrum signal in LEO satellite communication[J].Telecommunications Science,2025,41(06):70-80. DOI： 10.11959/j.issn.1000-0801.2025105.

摘要

低地球轨道（low earth orbit，LEO）卫星具有发射成本低、传输时延低、链路损耗小、数据传输速率高等优势，但卫星高速运动形成的多普勒效应、随遇业务造成的测控时间短都会导致扩频信号在大多普勒频移范围内高精度参数估计难。对此，提出了一种插值校正伪码相位/载波频率的高精度参数估计方法，首先采用相关积分峰与自适应检测门限进行检测判决，得到相关积分峰/旁峰及其伪码相位/载波频率指数；其次采用伪码自相关三角几何关系插值校正伪码相位，并使用相关积分峰抛物线拟合法插值校正载波频率。实验与分析结果表明：所提方法在载波多普勒频移±25 kHz下伪码相位估计精度优于0.05 chip、载波频率估计精度优于50 Hz，显著提升了LEO卫星测控系统高动态扩频信号的伪码相位/载波频率估计精度。

Abstract

The low earth orbit (LEO) satellite has advantages of the low launch cost

the short transmission delay

the small link loss and the high data rate. But the Doppler effect caused by high-speed satellite and the short TT&C (telemetry

tracking and command) time caused by random service lead to the difficulty of the high-accuracy parameter estimation for spread spectrum signal with large Doppler frequency shift. A high-accuracy parameter estimation algorithm for spread spectrum signal based on interpolated correct pseudo-code phase and carrier frequency was proposed. Firstly

the comparative detection with correlation integral peak and adaptive detection threshold was employed to acquire correlation integral peak/side-peak and its pseudo-code phase/carrier frequency index. Then

the trigonometric geometry relationship of pseudo-code autocorrelation was applied to interpolate the correct pseudo-code phase

and the parabola fitting method of correlation integral peak was used to interpolate the correct carrier frequency. The experiments and analysis verify that the proposed algorithm can achieve the pseudo-code phase estimation accuracy better than 0.05 chip and the carrier frequency estimation accuracy better than 50 Hz with ±25 kHz carrier Doppler frequency shift

and significantly improve the pseudo-code phase and carrier frequency estimation accuracy of high dynamic spread spectrum signal in LEO satellite TT&C systems.

关键词

Keywords

references

陈山枝 . 关于低轨卫星通信的分析及我国的发展建议 [J ] . 电信科学 , 2020 , 36 ( 6 ): 1 - 13 .

CHEN S Z . Analysis of LEO satellite communication and suggestions for its development strategy in China [J ] . Telecommunications Science , 2020 , 36 ( 6 ): 1 - 13 .

樊昌信 , 曹丽娜 . 通信原理(第7版) [M ] . 北京：国防工业出版社 , 2014 .

FAN C X , CAO L N . Principles of communications (The Seventh Edition) [M ] . Beijing : National Defense Industry Press , 2014 .

刘嘉兴 . 飞行器测控与信息传输技术 [M ] . 北京：国防工业出版社 , 2014 .

LIU J X . Spacecraft TT&C and information transmission technology [M ] . Beijing : National Defense Industry Press , 2014 .

武楠 , 匡镜明 , 王华 . 卫星通信接收机同步技术 [M ] . 北京：北京理工大学出版社 , 2018 .

WU N , KUANG J M , WANG H . Synchronization techniques in satellite communications receivers [M ] . Beijing : Beijing Institute of Technology Press , 2018 .

谢钢 . GPS原理与接收机设计(修订版) [M ] . 北京：电子工业出版社 , 2022 .

XIE G . Principles of GPS and receiver design [M ] . Beijing : Publishing House of Electronics Industry , 2022 .

朱从莹 . 高超声速飞行环境下载波信号快速捕获与跟踪方法 [D ] . 西安 : 西安电子科技大学 , 2019 .

ZHU C Y . Fast acquisition and tracking method of carrier signal in hypersonic flying environment [D ] . Xi’an : Xidian University , 2019 .

常晓宇 , 张伟嘉 , 李旭东 , 等 . 遥感卫星随遇接入互联网星座和在轨智能处理 [J ] . 电信科学 , 2022 , 38 ( 4 ): 59 - 69 .

CHANG X Y , ZHANG W J , LI X D , et al . Study on remote sensing satellites random access to internet constellation and on-orbit intelligent processing [J ] . Telecommunications Science , 2022 , 38 ( 4 ): 59 - 69 .

张轩 . 临近空间高动态直扩信号快速捕获算法研究 [D ] . 西安 : 西安电子科技大学 , 2017 .

ZHANG X . Research on DSSS signal fast acquisition algorithm under near-space high dynamic scenarios [D ] . Xi’an : Xidian University , 2017 .

张嘉怡 , 余忠洋 , 朱敏 , 等 . 低轨卫星通信中SCMA系统载波同步算法设计 [J ] . 系统工程与电子技术 , 2021 , 43 ( 5 ): 1354 - 1360 .

ZHANG J Y , YU Z Y , ZHU M , et al . Design of carrier synchronization algorithm for SCMA system in LEO satellite communication [J ] . Systems Engineering and Electronics , 2021 , 43 ( 5 ): 1354 - 1360 .

AHAMED S F , LAVETI G , GOSWAMI R , et al . Fast acquisition of GPS signal using Radix-2 and Radix-4 FFT algorithms [C ] // Proceedings of the 2016 IEEE 6th International Conference on Advanced Computing . Bhimavaram (IACC) . Piscataway : IEEE Press , 2016 : 674 - 678 .

LINTY N , PRESTI L L . Doppler frequency estimation in GNSS receivers based on double FFT [J ] . IEEE Transactions on Vehicular Technology , 2015 , 65 ( 2 ): 509 - 524 .

HASSANIEH H , ADIB F , KATABI D , et al . Faster GPS via the sparse fourier transform [C ] // Proceedings of the 18th Annual International Conference on Mobile Computing & Networking . New York : ACM Press , 2012 : 353 - 364 .

孙后印 , 贾方秀 . 大多普勒环境下扩频信号快速捕获算法研究 [J ] . 测试技术学报 , 2023 , 37 ( 3 ): 271 - 276 .

SUN H Y , JIA F X . Research on fast acquisition algorithm of spread spectrum signal in large Doppler environment [J ] . Journal of Test and Measurement Technology , 2023 , 37 ( 3 ): 271 - 276 .

何苏勤 , 王昊 . 一种提高PMF-FFT捕获算法多普勒频偏估计精度的方法 [J ] . 电子设计工程 , 2012 , 20 ( 12 ): 9 - 12 .

HE S Q , WANG H . A method for improving the precision of Doppler-shift estimation in PMF-FFT acquisition [J ] . Electronic Design Engineering , 2012 , 20 ( 12 ): 9 - 12 .

王徐华 , 李明阳 . 一种高动态条件下短码快速捕获方法研究 [J ] . 南京邮电大学学报(自然科学版) , 2018 , 38 ( 6 ): 24 - 28 .

WANG X H . LI M Y. Fast acquisition method for short code in high dynamic consensus [J ] . Journal of Nanjing University of Posts and Telecommunications (Natural Science Edition) , 2018 , 38 ( 6 ): 24 - 28 .

吴宇飞 , 刘琰 , 高军军 . 高动态猝发扩频信号低复杂度快速捕获技术 [J ] . 计算机仿真 , 2021 , 38 ( 10 ): 43 - 47, 63 .

WU Y F , LIU Y , GAO J J . High dynamic burst spread spectrum signal low complexity rapid technology [J ] . Computer Simulation , 2021 , 38 ( 10 ): 43 - 47,63 .

王尔申 , 胡志明 , 雷虹 , 等 . 北斗二代信号精频捕获算法研究 [J ] . 电光与控制 , 2016 , 23 ( 12 ): 14 - 22 .

WANG E S , HU Z M , LEI H , et al . Fined frequency acquisition algorithm for BD signal [J ] . Electronics Optics & Control , 2016 , 23 ( 12 ): 14 - 22 .

金磊 , 王媛 , 曾富华 , 等 . 一种高精度扩频信号捕获方法： 202310024540.2 [P ] . 2023 .

JIN L , WANG Y , ZENG F H , et al . A high-accuracy acquisition algorithm for spread spectrum signal : 202310024540.2 [P ] . 2023 .

刘娣 , 薄煜明 , 吴盘龙 . 基于伪码自相关特性与三次样条插值的GPS信号快速捕获算法 [J ] . 信息与控制 , 2011 , 40 ( 2 ): 187 - 191 .

LIU D , BO Y M , WU P L . GPS signal fast acquisition algorithm based on PN code auto-correlation property and cubic-spline interpolation method [J ] . Information and Control , 2011 , 40 ( 2 ): 187 - 191 .

郑昆 , 张晓林 . 一种提高BOC信号伪码相位测量精度的无模糊捕获算法 [J ] . 遥测遥控 , 2018 , 39 ( 2 ): 41 - 47 .

ZHENG K , ZHANG X L . An unambiguous acquisition algorithm for improving pseudo code phase measurement precision of BOC signal [J ] . Journal of Telemetry, Tracking and Command , 2018 , 39 ( 2 ): 41 - 47 .

马兰 , 井伟 , 扈月松 , 等 . 两点抛物线插值提高雷达测距精度的研究 [J ] . 火控雷达技术 , 2020 , 49 ( 4 ): 14 - 18, 26 .

MA L , JING W , HU Y S , et al . Research on improving radar ranging accuracy by two-point parabolic interpolation [J ] . Fire Control Radar Technology , 2020 , 49 ( 4 ): 14 - 18,26 .

熊德智 , 肖宇 , 胡军华 , 等 . 矩形窗三点插值傅里叶变换高精度频率估计方法 [J ] . 中国测试 , 2023 , 49 ( 9 ): 57 - 62 .

XIONG D Z , XIAO Y , HU J H , et al . Rectangular window three-point interpolation fourier transform high- precision frequency estimation method [J ] . China Measurement & Test , 2023 , 49 ( 9 ): 57 - 62 .

程凌峰 , 倪淑燕 , 陈世淼 , 等 . 一种基于多重同步压缩的高动态信号捕获技术 [J ] . 电讯技术 , 2024 , 64 ( 4 ): 612 - 619 .

CHENG L F , NI S Y , CHEN S M , et al . A high dynamic signal acquisition technology based on multisynchro squeezing transform (MSST) [J ] . Telecommunication Engineering , 2024 , 64 ( 4 ): 612 - 619 .

毛芃晖 , 胡东 . 基于M-Rife算法的一种载频估计方法 [J ] . 通信技术 , 2022 , 55 ( 11 ): 1408 - 1412 .

MAO P H , HU D . A carrier frequency estimation method based on M-Rife algorithm [J ] . Communications Technology , 2022 , 55 ( 11 ): 1408 - 1412 .

熊竹林 , 安建平 , 王爱华 . 改进的双块补零P码直接捕获算法 [J ] . 北京理工大学学报 , 2017 , 37 ( 5 ): 515 - 520, 550 .

XIONG Z L , AN J P , WANG A H . Improved double block zero padding algorithm for p code direct acquisition [J ] . Transactions of Beijing Institute of Technology , 2017 , 37 ( 5 ): 515 - 520,550 .

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