Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

Estimation of DOA Measurement System using DBF Receiver

DBF 수신기를 이용한 DOA 측정시스템의 평가

  • Min, Kyeong-Sik (Department of Radio Sciences & Engineering, College of Sciences and Engineering, Korea Maritime University) ;
  • Park, Chul-Keun (Department of Radio Sciences & Engineering, College of Sciences and Engineering, Korea Maritime University) ;
  • Ko, Jee-Won (Department of Radio Sciences & Engineering, College of Sciences and Engineering, Korea Maritime University)
  • 민경식 (한국해양대학교 전파공학과) ;
  • 박철근 (한국해양대학교 전파공학과) ;
  • 고지원 (한국해양대학교 전파공학과)
  • Published : 2003.11.15
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes an estimation of DOA(Direction Of Arrival) measurement system using DBF receiver with linear array antenna. This DBF receiver is composed of resistive FET mixer using low IF mettled. A radio frequency(RF), a local oscillator(LO) and ail intermediate frequency(IF) considered in this research are 2.09 GHz, 2.08 GHz and 10 MHz, respectively. This receiver is composed of a band-pass filter, a low-pass filter, a DC bias circuit. DOA measurement system is consist of linear array antenna, DBF receiver, AD control box and computer in the anechoic chamber. Receiving antenna is 4-array monopole antenna and DBF receiver is 4-Ch resistive FET mixer without amplifier. DOA algorithm is implemented using MUSIC algorithm with high resolution. We show that the results of DOA is $-30^{\circ},\;0^{\circ}$ and $60^{\circ}$, respectively. And we know that DOA estimation error occur by antenna radiation pattern and fabrication error of antenna array.

Keywords