A range algorithm for ground penetrating radar

A range-to-target algorithm for application to targets which exhibit a crude hyperbolic wiggle trace is described. The current practice is to use the apex time of the hyperbolic response together with an estimate of the propagation velocity to furnish the range. This new algorithm minimizes a difference function over a velocity search interval to provide the range. Examples for a variety of media, targets, range, and operating frequency are given for both simulated data and actual field data provided by others. Generally, the range is within 5% of the true value when known, or is consistent with values furnished by others