The Baseband Digital Beamforming Algorithm for Smart Antenna Fixed Beams Based on QPSK

JIANG Yong-quan; WEI Yue

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The Baseband Digital Beamforming Algorithm for Smart Antenna Fixed Beams Based on QPSK

更新时间：2025-07-16

- The Baseband Digital Beamforming Algorithm for Smart Antenna Fixed Beams Based on QPSK
- Acta Electronica Sinica Vol. 31, Issue 7, Pages: 1114-1117(2003)
- 作者机构：
  
  1. 汕头大学电子工程系,广东,汕头,515063
  2. 中国空间技术研究院515研究所,广东,汕头,515041
  3. 汕头大学电子工程系广东汕头,515063
  4. 中国空间技术研究院515研究所广东汕头,515041
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：2003
- 稿件说明：
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JIANG Yong-quan, WEI Yue. The Baseband Digital Beamforming Algorithm for Smart Antenna Fixed Beams Based on QPSK[J]. Acta Electronica Sinica, 2003, 31(7): 1114-1117.
DOI：

JIANG Yong-quan, WEI Yue. The Baseband Digital Beamforming Algorithm for Smart Antenna Fixed Beams Based on QPSK[J]. Acta Electronica Sinica, 2003, 31(7): 1114-1117. DOI：

摘要

射频(RF)波束形成算法

难以直接采用数字信号处理(DSP)技术

实时完成数字波束形成(DBF)计算.对于相移键控(PSK)调制方式

本文认为RF波束形成算法可等效在基带实现.针对四相相移键控(QPSK)调制方式

本文提出了一种新的智能天线固定多波束基带DBF算法.与RF波束形成算法相比

提出的算法可实现同样的辐射方向图

但需要的计算量却大幅度地降低.基带DBF算法

使智能天线的实现更为简单、应用更为灵活、性能更为优良

对推动智能天线技术实用化发展具有重大意义.

Abstract

Radio frequency (RF) beamforming algorithms are impractical to achieve digital beamforming (DBF) directly by digital signal processing (DSP) techniques in real time.For phase shift keying (PSK) modulation techniques

this paper considers that RF beamforming algorithms can be implemented equivalently in baseband.For quadrature phase shift keying (QPSK) modulation technique

a baseband DBF algorithm of smart antenna fixed beams is presented.Compared with RF beamforming algorithms

the presented algorithm can achieve the same radiated patterns

but it requires quite low computational cost.The baseband DBF algorithm can make smart antennas be realized easily

and flexibly

perform better

and play an important role in practical applications.

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Related Author

YANG Jun

LI Jian-dong

ZHOU Xiao-dong

LI Jun-qiang

CAO Zhi-gang

JIANG Yong-quan

ZHOU Yuan-ping

WEI Yue

Related Institution

State Key Lab.of ISN,Information Science Institute,Broadband Wireless Communications Laboratory,Xidian University

Dept.of Electronic Engineering,The state key lab.On Microwave and Digital Communications,Tsinghu University

School of Information Science and Technology,Zhongshan University

School of Information Science and TechnologyZhongshan UniversityGuangzhouGuangdong 510275China

南京邮电学院电子系

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