Not to drag it off topic, but I'm confused about what looks like ground
shadows in Sandia's SAR images. For example, the tower shadow in
http://www.sandia.gov/radar/movies/solar.mov continually points toward the
"viewer". Is this reflected radiation from the tower off the ground?? Really
weird false lighting effect if that's what it is. Also, ground shadows under
trees in other images make them look like false color satellite photos.

I think if you're going to do it, large synthetic apertures would be most
interesting.

Mike.

"mustafa umut sarac" wrote in message
ups.com...
I want to take high res mountain and city pictures with homebrew radar.
Some use passive radars and produce synthetic aperture radar images.
Passive radars use gsm , vhf , uhf , sw , fm , satellite transmitters .
But I am not sure about the quality of resulting image.
- Some italian researchers did it but I saw the images and I did not
like.-
If it will not not satisfy my need , I will want to build a transmitter
and receiver.
Do I need to use a gunnplexer ? Or is there any new transmitters at
market ?
What is your idea for building a sar ?