FMCW 기반의 비선형 레이다 시스템 설계 및 성능 시험 (Design of FMCW-Based Nonlinear Radar System and Its Performance Test)

서지정보

· 발행기관 : 한국전자파학회
· 수록지 정보 : 한국전자파학회 논문지 / 35권 / 10호 / 810 ~ 815페이지
· 저자명 : 오수영, 정태용, 남형석, 김지수, 오준택, 서철헌, 황금철, 홍순기

초록

본논문에서는FMCW 기반의비선형레이다시스템을설계및제작하고비선형표적에대한시험결과를제시한다.
제안된 시스템의 송신부운용대역은3∼3.2 GHz이며, 수신부 운용 대역은 송신 대역의 2차 고조파 영역에 해당하는6∼6.4 GHz이다. 송/수신부 배열 안테나이득은모두19 dBi이며. 전력증폭기의최대출력및저잡음증폭기최대이득은각각37 dBm, 16.4 dB이다. 제안된 시스템 성능 검증은 자유공간 및 은닉조건에서수행되었으며표적탐지시오탐지방지를 위해사용된신호처리기법은CA-CFAR이다. 총 6가지 비선형 표적에 대한 탐지시험이 수행되었으며제시된시험 환경에서 모두표적탐지가가능한것이확인되었다.

영어초록

In this study, we designed and fabricated an FMCW-based nonlinear radar system and presented test results for nonlinear targets.
The operating band of the transmitter of the proposed system is 3∼3.2 GHz, and the operating band of the receiver was 6∼6.4 GHz, which corresponded to the second harmonic of the transmission band. The transmit/receiver array antenna gain was 19 dBi, whereas the maximum output of the power amplifier and the maximum gain of the low-noise amplifier were 37 dBm and 16.4 dB, respectively.
The performance of the proposed system was verified in free space and concealed conditions, and the signal processing technique used to prevent false alarms is the cell-averaged constant false alarm rate (CA-CFAR). Target detection tests were performed with six nonlinear targets, and it was confirmed that the targets were successfully detected in all tested environments.

참고자료

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