Performances comparison of pulse-pair and 2-step prediction algorithms for the doppler spectrum estimation

In this work we use real data provided by terminal pulse Doppler radar (WSR-88D) echoes to estimate the windshear hazards disastrous for the aircraft takeoffs and landings. Briefly two different methods are used to estimate the received Doppler moments. The second central moment which is the variance of the wind speed is called width or shear. A first method is in the time domain and also called pulse-pair, while the second is in the frequency domain. The main aim of this study is a performances comparison of results provided by the two mentioned methods and assumes that the power spectrums of the received signals are approached with the Gaussian shape.

[1]  K. Miller,et al.  Some Remarks on Spectral Moment Estimation , 1972, IEEE Trans. Commun..

[2]  C. M. H. Unal.  Simultaneous wind velocity estimation and dual-polarization measurements of precipitation and clouds by an S-band profiler , 2005 .

[3]  S. Unnikrishna Pillai,et al.  A new spectrum extension method that maximizes the multistep minimum prediction error-generalization of the maximum entropy concept , 1992, IEEE Trans. Signal Process..

[4]  José M. N. Leitão,et al.  Nonparametric estimation of mean Doppler and spectral width , 2000, IEEE Trans. Geosci. Remote. Sens..

[5]  Valery M. Melnikov,et al.  Estimates of Large Spectrum Width from Autocovariances , 2004 .

[6]  David D. Aalfs,et al.  Signal processing aspects of windshear detection , 1993 .

[7]  Fernando S. Schlindwein,et al.  Is there still a place for assembly? [signal processing programming] , 1997 .

[8]  Edward S. Chornoboy.  Optimal mean velocity estimation for Doppler weather radars , 1993, IEEE Trans. Geosci. Remote. Sens..

[9]  S. Abeysekera.  Performance of pulse-pair method of Doppler estimation , 1998 .

[10]  R. Jeffrey Keeler,et al.  Signal Processing for Atmospheric Radars , 1990 .

[11]  Dusan S. Zrnic,et al.  Pulsed Doppler Radar Detects Weather Hazards to Aviation , 1982 .

[12]  Jonggil Lee.  Doppler moment estimation in a weather radar , 2002 .

[13]  Andrei A. Monakov,et al.  A method of spectral moment estimation , 1999, IEEE Trans. Geosci. Remote. Sens..

[14]  Pascal Larzabal,et al.  Parametric spectral moments estimation for wind profiling radar , 2003, IEEE Trans. Geosci. Remote. Sens..

[15]  Gaspare Galati,et al.  Computer simulation of weather radar signals , 1995, Simul. Pract. Theory.