Simulator lab

GPR simulator

High-frequency radio pulses for centimetre-scale shallow imaging

Method notes

Interpretation

A 250 MHz antenna in material of permittivity 9 travels at 0.100 m/ns, resolving beds about 10 cm thick, with the 2.5 m reflector arriving at 50.0 ns.

Velocity

0.1 m/ns

Wavelength

0.4 m

Vertical resolution

10 cm

Two-way travel time

50.03 ns

Attenuation

1.69 dB/m

Max depth (100 dB budget)

29.6 m

Synthetic radar trace

Direct wave plus the Ricker reflection from the target, attenuated by ground loss.

Direct waveTarget reflection

Signal loss with depth

Two-way attenuation; a practical system runs out of budget near -100 dB.

Two-way loss