Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지
DOI QR코드

DOI QR Code

Uniform DFT Polyphase Filterbank based DF Method for Frequency Hopping Signal Direction Finding

주파수 도약신호 방탐을 위한 균등 디지털주파수변환 폴리페이즈 필터뱅크 기반 방탐기술

  • 이영진 (한화시스템, 위성데이터링크팀) ;
  • 권혁자 (한화시스템, 위성데이터링크팀)
  • Received : 2016.09.05
  • Accepted : 2017.02.13
  • Published : 2017.03.25
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the wideband direction finding algorithm and system design method for short duration signal such as frequency hopping or burst signal is presented. The polyphase filterbank that it is possible for the near perfect reconstruction was used as a pre-processing and in each subband power measurement was performed to determine whether the presence of a signal and finally general direction finding algorithm was performed. In addition, various experiments was performed using Matlab Simulink and collected data from wideband receiver to verification of the proposed algorithm.

본 논문에서는 주파수 도약 신호나 burst 신호와 같이 신호의 유지시간이 짧은 신호에 대한 방향탐지를 위한 광대역 방향탐지 알고리즘과 시스템 설계 방안에 대해 제안한다. 제안된 구조는 near perfect reconstruction이 가능한 폴리페이즈 필터뱅크(polyphse filterbank)를 전처리 과정으로 사용하며 각 서브밴드에서 신호 존재 여부를 판단하고 각 서브밴드에서 일반적인 방향탐지 알고리즘이 수행하는 구조이다. 아울러 Matlab 시뮬링크와 제작된 광대역수신기에서 수집한 데이터를 사용하여 다양한 환경에서 제안된 알고리즘에 대해 그 성능을 검증하였다.

Keywords

References

  1. Ju. Jeungmin, Won. Jong-Mook, Lee. Cheol-Soo, Park. Young-Mi, "Direction Finding of a Frequency Hopping Signal Using Peak Level Signal Detection of Wideband Scan Receiver" JCCI2008, 103p, 04. 2008.
  2. Jun-Ho Choi, Cheol-Sun Park, Sun-Phil Nah, Won Jang, "A Multi-Channel Correlative Vector Direction Finding System Using Active Dipole Antenna Array for Mobile Direction Finding Applications," Journal of the Korea Electromagnetic Engineering Society, Vol. 7, No. 4, Dec. 2007.
  3. Ralph O, Schmidt. "Multiple Emitter Location and signal Parameter Estimation." in IEEE Trans. On Antennas and Propagation, Vol. 34. No. 3, March 1986.
  4. RICHARD ROY and THOMAS KAILATH, "ESPRIT-Estimation of Signal Parameters Via Rotational Invariance Techniques," in IEEE Trans. on Acoustics, Speech, and Signal Processing, Vol. 37, No. 7, July 1989.
  5. P. P. Vaidyanathan, "Multirate Systems and Filter Banks", PrenticeHall, 1993.
  6. J. D. Johnston, "A filter family designed for use in quadrature mirror filter banks", in Proceeding of the International Conference on Acoustics, Speech, and Signal Processing, pp. 292-294, April 1980.
  7. R. Ansari and B. Liu, Handbook for Digital Signal Processing, "Multirate signal processing" Wiley-Interscience, ch. 14, pp. 981-1084, 1993.