Application of Digital Predistortion Technique to Digital Phased Array Antenna for the Low Earth Orbit Satellite Communication System

HAN Xiaomeng; WANG Jikang; YANG Zaixin; LI Jianxing; WANG Anyang

doi:10.11959/j.issn.1000-0801.2025031

您当前的位置：

首页 >

文章列表页 >

Application of Digital Predistortion Technique to Digital Phased Array Antenna for the Low Earth Orbit Satellite Communication System

Applications | 更新时间：2025-10-27

- Application of Digital Predistortion Technique to Digital Phased Array Antenna for the Low Earth Orbit Satellite Communication System
- Space-Integrated-Ground Information Networks Vol. 6, Issue 3, Pages: 92-99(2025)
- 作者机构：
  
  1.上海卫星互联网研究院有限公司，上海 202161
  2.上海市卫星互联网重点实验室，上海 202161
  3.卫星互联网全国重点实验室，上海 202161
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2025031
  CLC： TP393
- Received：18 January 2025，
  
  Revised：2025-07-09，
  
  Published：20 September 2025
- 稿件说明：
移动端阅览
韩晓梦,王继康,杨再新等.数字预失真技术在低轨卫星通信数字相控阵天线中的应用[J].天地一体化信息网络,2025,06(03):92-99.

HAN Xiaomeng,WANG Jikang,YANG Zaixin,et al.Application of Digital Predistortion Technique to Digital Phased Array Antenna for the Low Earth Orbit Satellite Communication System[J].Space-Integrated-Ground Information Networks,2025,06(03):92-99.
韩晓梦,王继康,杨再新等.数字预失真技术在低轨卫星通信数字相控阵天线中的应用[J].天地一体化信息网络,2025,06(03):92-99. DOI： 10.11959/j.issn.1000-0801.2025031.

HAN Xiaomeng,WANG Jikang,YANG Zaixin,et al.Application of Digital Predistortion Technique to Digital Phased Array Antenna for the Low Earth Orbit Satellite Communication System[J].Space-Integrated-Ground Information Networks,2025,06(03):92-99. DOI： 10.11959/j.issn.1000-0801.2025031.

摘要

低轨卫星通信系统正朝着广覆盖、高性能的方向发展。传统相控阵天线通过功率回退来改善线性指标，该方法影响相控阵天线系统的等效全向辐射功率（equivalent isotropically radiated power，EIRP）指标。因此将数字预失真（digital pre-distortion，DPD）技术引入低轨卫星通信系统成为研究趋势，以解决星载相控阵天线EIRP和发射线性度矛盾的问题。基于性能和复杂度最优的一阶B样条数字预失真非线性模型进行实测，测试结果显示，数字预失真技术可以改善数字相控阵天线系统EIRP和线性要求的矛盾。

Abstract

Low-orbit satellite communication systems are developing towards wide coverage and high performance. Traditional phased array antennas improve system linearity indicators through power backoff

a method that affects the equivalent isotropic radiated power (EIRP) indicator of phased array antenna systems. Therefore

introducing digital pre-distortion (DPD) technology into low-orbit satellites has become a research trend to address the contradiction between the EIRP of spaceborne phased array antennas and transmission linearity. In this paper

field measurements were carried out based on the first-order B-spline digital pre-distortion nonlinear model with optimal performance and complexity. The test results showed that digital pre-distortion technology can alleviate the contradiction between the EIRP and linearity requirements of digital phased array antenna systems.

关键词

Keywords

references

DEL PORTILLO I , CAMERON B G , CRAWLEY E F . A technical comparison of three low earth orbit satellite constellation systems to provide global broadband [J ] . Acta Astronautica , 2019 , 159 : 123 - 135 .

SIKRI D , JAYASURIYA R M . Multi-beam phased array with full digital beamforming for SATCOM and 5G [J ] . Microwave Journal , 2019 , 62 ( 4 ): 64 - 79 .

SCHETZEN M . The Volterra and wiener theories of nonlinear system [M ] . New York : Wiley , 1980 .

BIGLIERI E , BARBERIS S , CATENA M . Analysis and compensation of nonlinearities in digital transmission systems [J ] . IEEE Journal on Selected Areas in Communications , 2006 , 6 ( 1 ): 42 - 51 .

DING L , ZHOU G T , MORGAN D R , et al . A robust digital baseband predistorter constructed using memory polynomials [J ] . IEEE Transactions on Communications , 2004 , 52 ( 1 ): 159 - 165 .

MORGAN D R , MA Z , KIM J , et al . A generalized memory polynomial model for digital predistortion of RF power amplifiers [J ] . IEEE Transactions on Signal Processing , 2006 , 54 ( 10 ): 3852 - 3860 .

ZHU A D . Decomposed vector rotation-based behavioral modeling for digital predistortion of RF power amplifiers [J ] . IEEE Transactions on Microwave Theory and Techniques , 2015 , 63 ( 2 ): 737 - 744 .

SAFARI N , ROSTE T , FEDORENKO P , et al . An approximation of Volterra series using delay envelopes, applied to digital predistortion of RF power amplifiers with memory effects [J ] . IEEE Microwave and Wireless Components Letters , 2008 , 18 ( 2 ): 115 - 117 .

张烈 , 冯燕 . 线性插值基的数字预失真方法 [J ] . 系统工程与电子技术 , 2014 , 36 ( 12 ): 2376 - 2380 .

ZHANG L , FENG Y . Digital pre-distortion based on linear interpolation basis function [J ] . Systems Engineering and Electronics , 2014 , 36 ( 12 ): 2376 - 2380 .

刘昕 , 陈文华 , 吴汇波 , 等 . 功放数字预失真线性化技术发展趋势与挑战 [J ] . 中国科学: 信息科学 , 2022 , 52 ( 4 ): 569 - 595 .

LIU X , CHEN W H , WU H B , et al . Digital predistortion: development trends and key techniques [J ] . Scientia Sinica (Informationis) , 2022 , 52 ( 4 ): 569 - 595 .

BRIHUEGA A , ABDELAZIZ M , ANTTILA L , et al . Mixture of experts approach for piecewise modeling and linearization of RF power amplifiers [J ] . IEEE Transactions on Microwave Theory and Techniques , 2022 , 70 ( 1 ): 380 - 391 .

LI Y , WANG X Y , PANG J Z , et al . Boosted model tree-based behavioral modeling for digital predistortion of RF power amplifiers [J ] . IEEE Transactions on Microwave Theory and Techniques , 2021 , 69 ( 9 ): 3976 - 3988 .

Views

130

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

LSTM-Assisted Doppler Opportunistic Positioning with Low Earth Orbit Satellites

Survey on Routing Technology of Mega Constellation

Related Author

Wei Yuming

Cui Gaofeng

Wu Mengjing

Wang Weidong

Jiaxin ZHANG

Zhaoyang CHANG

Yilong ZHANG

Rui LI

Related Institution

School of Electronic Engineering, Beijing University of Posts and Telecommunications

Key Laboratory of Universal Wireless Communications of Ministry of Education

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications

⁰