Impulse radar with swept range gate
- Livermore, CA
A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna (10), so a background subtraction is not needed, simplifying the circuitry while improving performance. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive (24) and transmit cavities (22) by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. The antennas can be arranged in a side-by-side parallel spaced apart configuration or in a coplanar opposed configuration which significantly reduces main bang coupling.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5805110
- Application Number:
- 08/849869
- OSTI ID:
- 871830
- Country of Publication:
- United States
- Language:
- English
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Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities
Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities
Related Subjects
radar
swept
range
gate
finder
hidden
locator
based
ultra-wide
band
resolution
device
generates
equivalent
time
amplitude
scan
typical
inches
20
feet
analog
limited
jitter
01
differential
sampling
receiver
employed
effectively
eliminate
ringing
aberrations
induced
near
proximity
transmit
antenna
10
background
subtraction
simplifying
circuitry
improving
performance
techniques
reduce
clutter
receive
signal
decoupling
24
cavities
22
placing
space
conductive
radiative
damping
elements
terminating
plates
openings
antennas
arranged
side-by-side
parallel
spaced
apart
configuration
coplanar
opposed
significantly
reduces
main
bang
coupling
range gate
near proximity
swept range
significantly reduce
wide band
impulse radar
resolution swept
equivalent time
spaced apart
significantly reduces
transmit antenna
sampling receiver
time amplitude
analog range
parallel spaced
amplitude scan
radar range
range resolution
range finder
ultra-wide band
effectively eliminate
improving performance
band radar
background subtraction
aberrations induced
pulse radar
receive signal
eliminate ringing
device generates
differential sampling
typical range
reduces main
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