Menetelmä taajuusmoduloidun, katkotun jatkuva-aaltosignaalin (FMICW) käyttämiseksi geofysikaalisessa kaukotunnistuksessa

The present invention relates to a method for using a Frequency Modulated Interrupted Continuous Wave (FMICW) radar signal. The method comprises following steps: generating a signal with a frequency changing over a set bandwidth (B), gating the signal on and off with a predetermined frequency (fg) thereby forming on-timeslots and off-timeslots, sending the gated signal to a desired target with help of a transmitter and an antenna, receiving a reflected signal during the off-timeslots of the gated signal, and detecting and gathering desired properties from the received signal during the off-timeslots of the gated signal. In accordance with the invention the gating frequency (fg) is changed in order to maximize the average signal power at the desired distance from the antenna.