US PATENT DOCUMENTS includes transmitting at least one signal toWards a target and
receiving at least a portion of the transmitted signal back 2,234,329 A 3/1941 Wolff from the …

The present invention is directed to a method and device for measuring distances,
electronically. The field of target detection was first developed in the radio frequency portion …

A high resolution ranging method is described utilizing a novel modulated waveform,
hereafter referred to as coherent burst modulation. In the coherent burst method, high …

US6665333B2 - Methods and apparatus for determining the time of arrival of a signal -
Google Patents US6665333B2 - Methods and apparatus for determining the time of arrival of …

(57) ABSTRACT A system and method is disclosed for measuring time of flight to an object.
A transmitter transmits an electromag netic signal and provides a reference signal …

In a method for Suppressing interferences while detecting objects in a target area, a
transmitter transmits a sequence of pulses into the target area, and a receiver detects the …

(51) Int. Cl. An apparatus a transmitter section, a receiversection, and a GIS I. 3/08(2006.01)
processing module. The transmitter section transmits a plu GOIS I. 3/00(2006.01) rality of …

Stockton LLP (57) ABSTRACT Distance measurement methods and apparatus use laser
pulse sets having signatures which enable returned pulses to be correlated with emitted …

[57] ABSTRACT A coherent signal generated at a precise frequency deter mined by an
atomic clock is transmitted by a moveable object. A receiver station compares the frequency …

Some embodiments are directed to techniques that mitigate the problems of range walk
where fast moving objects are detected using pulsed target detection systems having rela …