A wavelet transform technique for removing airplane echoes from ST radar signals

This paper presents a new technique based on the wavelet transforms For rem oving airplane and other transitory echoes in strato-tropospheric (ST) rada r measurements. This technique provides a time-frequency display of the tim e series, which is necessary for discriminating the nearly continuous wind signal from transitory pollution such as airplane echoes. Very encouraging results obtained with the VHF INSU/Meteo ST radar located at CNRM/Toulouse have shown practical possibilities for a real-time implementation and for a pplications related to frequency domain interferometry.