Journal of the Institute of Convergence Signal Processing (융합신호처리학회논문지)

The Korea Institute of Convergence Signal Processing (한국융합신호처리학회)
권호 표지

A modeling for an ionospheric channel using recursive digital filter

Recursive 디지털 필터에 의한 전리층 채널 모델링

  • 김성진 (동명정보대학교 정보통신공학과)
  • Published : 2004.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a recursive digital filter realization for an ionospheric channel model is proposed. This realization is in the form of a cascade of identical second-order all-pass filters, and is determined by only three parameters; two coefficients of an all-pass section, and the number of sections. The values of these parameters are optimized by a nonlinear optimization algorithm called the "downhill simplex method", so that the resulting time delay function closely approximates that of the ionospheric channel model. Comparing with the nonrecursive digital filter realization, it can be shown that the proposed recursive-digital-filter-realization is advantageous in points of view for the numbers of filter coefficients and the realization.

Keywords

References

  1. IEEE Trans. Antenna and Propagation v.29 Frequency dispersion in the ionosphere R.E.Mclntosh;A.Malage
  2. IEEE Trans. Antenna and Propagation v.27 Ionosphere effects on radio communication and ranging pulses K.C.Yeh;C.H.Liu
  3. IEEE Trans. Antenna and Propagation v.25 Ionosphere and plasmaspheric effects in satellite navigation systems H.Soicher
  4. Modern radar Analysis, Evaluation and System Design Atmospheric Effect on Radio Wave Propagation G.H.Millman;R.S.Berkowitz(ed.)
  5. 한국통신학회논문지 v.27 no.5B 위성통신을 위한 투영 행렬 빔형성 기법 심세준(외 3인)
  6. IEEE Trans. Signal Processing v.51 Code-Aided Blind Adaprive New User Detection in DS/CDMA systems with Fading Time-Dispersive Channels S.Buzzi;A.De,Maio;M.Lops
  7. IEEE Trans. Signal Processing v.49 Identifiability Results for Blind Beamforming in Incoherent Multipath with Small Delay Spreed N.Sidiropoulos;X.Liu
  8. 정보통신세계 차동완
  9. 이동통신공학 은종과(외 3인)
  10. Sandit Report SAND87-1295·UC-13 Impulse response of a frequency-dependent delay S.D.Stearns;G.R.Elliott
  11. Ph.D. dissertation, University of New Mexico Recursive digital filter realization and inverse filtering for an ionospheric model Sung-Jin Kim
  12. Discrete-Time Signal and Systems N.Ahmed;T.Natarajan
  13. Discrete-Time Signal Processing A.V.Oppenheim;R.W.Schafer
  14. Digital signal processing using MATLAB V.K.Ingle;J.G.proakis
  15. Digital Signal Processing S.K.Mitra
  16. IEEE Trans. Signal Processing v.50 Allpass Delay Chain-Based IIR PR Filterbank and Its Application ro Multiple Description Subband Coding B.Shankar,M.R.;A.Makur
  17. Proc. IEEE v.76 The digiral all-pass filter: a versatile signal processing buliding block P.A.Regalia;S.K.Mitra;P.P.Vaidyanathan
  18. Compt. Journal v.7 A simplex method for function minimzation J.A.Nelder;Mead
  19. Numerical Recipes: The art of Scientific Computing Willian H. Press(et al.)