Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities
- 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 atypical 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, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities 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.
- 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 5774091
- OSTI ID:
- 871668
- Country of Publication:
- United States
- Language:
- English
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Short range, ultra-wideband radar with high resolution swept range gate
Short range, ultra-wideband radar with high resolution swept range gate
Related Subjects
micro-power
impulse
radar
resolution
swept
gate
damped
transmit
receive
cavities
finder
hidden
locator
based
ultra-wide
band
device
generates
equivalent
time
amplitude
scan
atypical
inches
20
feet
analog
limited
jitter
01
differential
sampling
receiver
employed
effectively
eliminate
ringing
aberrations
induced
near
proximity
antenna
background
subtraction
simplifying
circuitry
improving
performance
replacement
ultrasound
devices
fluid
level
sensing
automotive
cruise
control
parking
assistance
location
stud
rebar
finding
technology
positioned
highway
lane
collect
vehicle
count
speed
data
traffic
techniques
reduce
clutter
signal
decoupling
placing
space
conductive
radiative
damping
elements
terminating
plates
openings
range gate
near proximity
swept range
wide band
impulse radar
resolution swept
level sensing
equivalent time
speed data
transmit antenna
micro-power impulse
sampling receiver
time amplitude
analog range
amplitude scan
radar range
range resolution
range finder
ultra-wide band
effectively eliminate
improving performance
fluid level
band radar
background subtraction
aberrations induced
pulse radar
receive signal
eliminate ringing
device generates
differential sampling
typical range
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