(a)

(b)

Fig.1.　Spectrum of signals : a) transmitted (M-code), b) received

Fig.2.　Cross-correlation function

Taking into account the definition presented in [4] and the properties of working signal, one can accept, within a constant factor, the obtained cross-correlative function by way of an estimation of waveguide impulse characteristics. Particularly pronounced peaks in the correlative function diagram, their position with respect to the time scale conform to the signal components (modes) propagating in waveguide at different group velocities.

BACK　　　CONTENTS　　　NEXT