Wide band stepped frequency ground penetrating radar
Abstract
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:
- Research Org.:
- EG & G Energy Measurements Inc
- OSTI Identifier:
- 203878
- Patent Number(s):
- 5499029
- Application Number:
- PAN: 8-234,441
- Assignee:
- EG and G Energy Measurements, Inc., Las Vegas, NV (United States)
- DOE Contract Number:
- AC08-83NV10282
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 12 Mar 1996
- 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
Citation Formats
Bashforth, M B, Gardner, D, Patrick, D, Lewallen, T A, Nammath, S R, Painter, K D, and Vadnais, K G. Wide band stepped frequency ground penetrating radar. United States: N. p., 1996.
Web.
Bashforth, M B, Gardner, D, Patrick, D, Lewallen, T A, Nammath, S R, Painter, K D, & Vadnais, K G. Wide band stepped frequency ground penetrating radar. United States.
Bashforth, M B, Gardner, D, Patrick, D, Lewallen, T A, Nammath, S R, Painter, K D, and Vadnais, K G. Tue .
"Wide band stepped frequency ground penetrating radar". United States.
@article{osti_203878,
title = {Wide band stepped frequency ground penetrating radar},
author = {Bashforth, M B and Gardner, D and Patrick, D and Lewallen, T A and Nammath, S R and Painter, K D and Vadnais, K G},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 12 00:00:00 EST 1996},
month = {Tue Mar 12 00:00:00 EST 1996}
}