Short range radio locator system
- Livermore, CA
A radio location system comprises a wireless transmitter that outputs two megahertz period bursts of two gigahertz radar carrier signals. A receiver system determines the position of the transmitter by the relative arrival of the radar bursts at several component receivers set up to have a favorable geometry and each one having a known location. One receiver provides a synchronizing gating pulse to itself and all the other receivers to sample the ether for the radar pulse. The rate of the synchronizing gating pulse is slightly offset from the rate of the radar bursts themselves, so that each sample collects one finely-detailed piece of information about the time-of-flight of the radar pulse to each receiver each pulse period. Thousands of sequential pulse periods provide corresponding thousand of pieces of information about the time-of-flight of the radar pulse to each receiver, in expanded, not real time. Therefore the signal processing can be done with relatively low-frequency, inexpensive components. A conventional microcomputer is then used to find the position of the transmitter by geometric triangulation based on the relative time-of-flight information.
- 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 5589838
- Application Number:
- 08/510979
- OSTI ID:
- 870761
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
radio
locator
location
comprises
wireless
transmitter
outputs
megahertz
period
bursts
gigahertz
radar
carrier
signals
receiver
determines
position
relative
arrival
component
receivers
set
favorable
geometry
provides
synchronizing
gating
pulse
sample
rate
slightly
offset
collects
finely-detailed
piece
information
time-of-flight
thousands
sequential
periods
provide
corresponding
thousand
pieces
expanded
time
signal
processing
relatively
low-frequency
inexpensive
components
conventional
microcomputer
geometric
triangulation
based
radar pulse
carrier signal
signal processing
radio location
provide corresponding
relative arrival
gating pulse
sequential pulse
signal process
pulse period
range radio
carrier signals
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