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RADAR MINIMUN ALTITUDE DETECTION AT 25 MILES - RF Cafe Forums
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| jpemusic
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Post subject: RADAR MINIMUN ALTITUDE DETECTION AT 25 MILES
Posted: Sat Feb 06, 2010 4:01 pm
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Joined: Sat Feb 06, 2010
3:28 pm
Posts: 2 |
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Hello all,
I need to know if an X Band radar
antenna is sitting flat 10 feet off of the ground
with vertical search beams that scan from -2 degrees
up to 45 degrees what is the minimun altitude that
it can detect a moving target the size of a Cessna
152 aircraft at 25 miles taking the curvature of
the earth and other propagation factors into consideration
and no line of sight obstructions. The radar has
a max detection range of 45 miles. So please assume
that it has plenty of power, antenna gain and receiver
sensitivity.
Thank You in advance
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fred47 |
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Post subject: Re: RADAR MINIMUN ALTITUDE DETECTION AT 25 MILES
Posted: Sun Feb 14, 2010 8:31 pm
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| General |
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Joined: Wed Feb 22, 2006
3:51 pm
Posts: 113 |
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Hi!
You might have predicted the answer,
"it depends"...
The minimum altitude will
usually be determined by the ground reflection clutter,
in the presence of sufficient transmitter power,
antenna gain, and receiver noise figure, which you
said were sufficient.
The ground clutter
is determined by the antenna pattern and the anti-clutter
filter behavior.
There's a really wide range
of possibilities there!
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Posted 11/12/2012
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