T
Tom Potter
Guest
A high resolution, handheld, RADAR system can be made
using modern electronics and information technology,
You could quasi-randomly modulate (Variable transmit and listen periods),
a solid state microwave oscillator (Gunn Diode)
with a digital code with good correlation properties (Gold Code),
cross-correlate the echoes received when in the listen mode
with the Gold Code, then cross-correlate the correlations
from the echoes with stored geo-patterns downloaded
from a Google-Earth like data base covering the area of operation,
compare adjacent (In time) echo returns to spot moving targets,
then present the pattern on a small, solid state, color display
that shows the Google-Earth like picture of the area,
with super-imposed moving targets.
You would not need a directional antenna,
nor high power for such a device,
but it would be necessary to sweep the device around
to build up a good correlation of
the area as one's body and other things
would block the signals and,
even though the Google-Earth like picture,
and the location of the RADAR would still be valid,
but blocked moving targets would not be detected.
Note that if a map of the area of operation is downloaded
into the system, and a set of times from the radar to fixed
targets is compared to the map, one could quickly correlate the
map with the echoes and determine where one is.
With such a device, one could move around,
and see where they were on a moving Google-Earth-like picture,
and see the moving targets about them,
perhaps even colored and shaped by the RADAR signatures
of the targets. (People, cars, tanks, trains, an incoming missile, etc.)
Note that for many situations that such a device could replace GPS.
Just like GPS, after the device determines where one is,
it would be able to compute changes in position quickly.
Note that Citizens Band transmitters have a power output if
about four watts, and this system would operate on much less power
as it would be pulsed and use modern digital communications.
A range of only a few miles should be enough to find enough
landmarks the system could use for references.
Hey maybe, I should patent this device?
As I mentioned in old posts,
I used "Data Mining" back in the 1980's
in my businesses and applied for a patent on "Data Mining"
just when they began to allow software to be patented,
but I decided not to complicate my life,
and didn't complete the patent.
In other words,
if you want to commercialize this idea for non-military applications,
go for it.
As any entrepreneur knows,
ideas are a dime a dozen,
and what requires blood, sweat and tears
is getting an idea to the marketplace.
The bottom line is,
no one should be able to hold progress hostage
with a patent, that is obvious to many,
as the state of the art exposes new approaches.
--
Tom Potter
*** Time Magazine Person of the Year 2006 ***
*** May 2007 Anti-Bigot Award ***
http://home.earthlink.net/~tdp
http://tdp1001.googlepages.com/home
http://no-turtles.com
http://www.frappr.com/tompotter
http://spaces.msn.com/tdp1001
http://www.flickr.com/photos/tom-potter
http://tom-potter.blogspot.com
--
Posted via a free Usenet account from http://www.teranews.com
using modern electronics and information technology,
You could quasi-randomly modulate (Variable transmit and listen periods),
a solid state microwave oscillator (Gunn Diode)
with a digital code with good correlation properties (Gold Code),
cross-correlate the echoes received when in the listen mode
with the Gold Code, then cross-correlate the correlations
from the echoes with stored geo-patterns downloaded
from a Google-Earth like data base covering the area of operation,
compare adjacent (In time) echo returns to spot moving targets,
then present the pattern on a small, solid state, color display
that shows the Google-Earth like picture of the area,
with super-imposed moving targets.
You would not need a directional antenna,
nor high power for such a device,
but it would be necessary to sweep the device around
to build up a good correlation of
the area as one's body and other things
would block the signals and,
even though the Google-Earth like picture,
and the location of the RADAR would still be valid,
but blocked moving targets would not be detected.
Note that if a map of the area of operation is downloaded
into the system, and a set of times from the radar to fixed
targets is compared to the map, one could quickly correlate the
map with the echoes and determine where one is.
With such a device, one could move around,
and see where they were on a moving Google-Earth-like picture,
and see the moving targets about them,
perhaps even colored and shaped by the RADAR signatures
of the targets. (People, cars, tanks, trains, an incoming missile, etc.)
Note that for many situations that such a device could replace GPS.
Just like GPS, after the device determines where one is,
it would be able to compute changes in position quickly.
Note that Citizens Band transmitters have a power output if
about four watts, and this system would operate on much less power
as it would be pulsed and use modern digital communications.
A range of only a few miles should be enough to find enough
landmarks the system could use for references.
Hey maybe, I should patent this device?
As I mentioned in old posts,
I used "Data Mining" back in the 1980's
in my businesses and applied for a patent on "Data Mining"
just when they began to allow software to be patented,
but I decided not to complicate my life,
and didn't complete the patent.
In other words,
if you want to commercialize this idea for non-military applications,
go for it.
As any entrepreneur knows,
ideas are a dime a dozen,
and what requires blood, sweat and tears
is getting an idea to the marketplace.
The bottom line is,
no one should be able to hold progress hostage
with a patent, that is obvious to many,
as the state of the art exposes new approaches.
--
Tom Potter
*** Time Magazine Person of the Year 2006 ***
*** May 2007 Anti-Bigot Award ***
http://home.earthlink.net/~tdp
http://tdp1001.googlepages.com/home
http://no-turtles.com
http://www.frappr.com/tompotter
http://spaces.msn.com/tdp1001
http://www.flickr.com/photos/tom-potter
http://tom-potter.blogspot.com
--
Posted via a free Usenet account from http://www.teranews.com