Patent ID: 7205769

Claim:
A reception signal processing method of an electromagnetic prober which is adapted to non-invasively probe into a medium by holding a plurality of reception signals obtained at different probing sites and analyzing the plurality of reception signals, the electromagnetic prober comprising a transmission antenna, a reception antenna for receiving echoes of electromagnetic radiation radiated from the transmission antenna, and a reception unit for generating reception signals on the basis of detection signals of the reception antenna, the method comprising the steps of: phase-correcting the respective reception signals on the basis of specific peak points of the respective reception signals defined as basis points so as to eliminate a phase difference between the plurality of reception signals occurring due to a variation in a distance between the antenna and the medium to be probed, and performing a computation on predetermined signals of the plurality of reception signals subjected to the phase correction with the use of a second amplitude correction coefficient given as a time-based function, wherein the method further comprises the steps of comparing the amplitudes of the plurality of reception signals at the phase correction base points, and performing a computation on predetermined signals of the plurality of reception signals with the use of a first amplitude correction coefficient given as a constant according to the ratio of the amplitudes.