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 …

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 …

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 …

An improved method and apparatus for precision rang ing is described using a frequency-
modulated signal source to stimulate creation of interference fringes at a rate proportional to …

An optical correlator is disclosed which, in combination with an ultrafast optical pulsed
source, can be used for estimating distances of objects with submicron precision. The …

(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 …

BACKGROUND Laser range finders are commonly implemented based on a measurement
of the round trip delay of a signal echoed by a target. For example, the round trip delay is …

Exemplary embodiments of the present invention are directed to a method and apparatus for
detecting re? ected pulses from multiple targets in a? eld of vieW such that a range to each …

Coherent bursts of N wideband, low repetition frequency width-modulated pulses are
transmitted, and they are received with pulse compression and then Sampling. For each …

US3549256A - Laser pulse compression ranging system using double-chirped pulses - Google
Patents US3549256A - Laser pulse compression ranging system using double-chirped pulses …