(57) ABSTRACT A pulse-echo ranging system and method wherein transmit burst pulses
are transmitted to a target at a first repetition frequency, an intermediate frequency signal is …

(57) ABSTRACT A method of measuring the position of a target feature in a pulse-echo
ranging System including transmitting at least one pulse of high frequency energy from a …

(57) ABSTRACT A method of operating a pulse echo ranging System com prising a
transducer assembly for providing transmission and reception of high frequency energy …

Error correction in an echo pulse is performed by periodically (for example, every 100th
pulse) generating a parabola derived from a selected part of the pulse leading edge. An …

(57) ABSTRACT A method of operating an acoustic pulse echo ranging system is provided.
A series of acoustic energy pulses of successively increasing or decreasing burst …

A method, which allows, in an acoustic pulse-echo ranging system, the direct use of a
digitized raw echo signal for correlation-based echo distance estimation, where an acoustic …

In a method for processing an echo profile generated by a pulse-echo ranging system, the
echo profile is compared with a time-varying threshold function to identify valid echoes in …

The present invention is provided to improve upon pulse echo ranging Systems and which
form part of the same. In order to achieve this end, one or more aspects of the invention may …

A method for considering an echo amplitude profile as a result of convoluting a single echo
with a channel response sequence, wherein for multiple echo detection, an estimation task …

A method for processing an echo amplitude profile generated by an echo ranging system
with reference to a temporal axis to identify return echoes comprised by the profile by …