한국전자파학회:학술대회논문집 (Proceedings of the Korea Electromagnetic Engineering Society Conference)
- 한국전자파학회 2003년도 종합학술발표회 논문집 Vol.13 No.1
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- Pages.219-223
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- 2003
DBF 수신기를 이용한 DOA 측정시스템의 평가
Estimation of DOA Measurement System using DBF Receiver
- 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)
- 발행 : 2003.11.15
초록
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