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Title: Wide band stepped frequency ground penetrating radar

A wide band ground penetrating radar system is described embodying a method wherein a series of radio frequency signals is produced by a single radio frequency source and provided to a transmit antenna for transmission to a target and reflection therefrom to a receive antenna. A phase modulator modulates those portions of the radio frequency signals to be transmitted and the reflected modulated signal is combined in a mixer with the original radio frequency signal to produce a resultant signal which is demodulated to produce a series of direct current voltage signals, the envelope of which forms a cosine wave shaped plot which is processed by a Fast Fourier Transform Unit 44 into frequency domain data wherein the position of a preponderant frequency is indicative of distance to the target and magnitude is indicative of the signature of the target. 6 figs.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
203878
Assignee:
EG and G Energy Measurements, Inc., Las Vegas, NV (United States) PTO; SCA: 440800; PA: EDB-96:061138; SN: 96001559462
Patent Number(s):
US 5,499,029/A/
Application Number:
PAN: 8-234,441
Contract Number:
AC08-83NV10282
Resource Relation:
Other Information: PBD: 12 Mar 1996
Research Org:
EG & G Energy Measurements Inc
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; RADAR; DESIGN; OPERATION; UNDERGROUND FACILITIES; DETECTION; RADIO EQUIPMENT; FREQUENCY MODULATION; RADIOWAVE RADIATION; SIGNAL CONDITIONING