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"-rick-" wrote in message . .. "Shortwave Sportfishing" wrote... "-rick-" wrote: Um... I thought by measuring the change in time or carrier phase/frequency associated with a reflection, certainly not by measuring attenuation associated with wind. That's a good point, but it has to bounce off something. If the air is denser because of changes in the wind - changes in air density, etc. Right, it has to hit enough of an impedance change to reflect some energy. I'm skeptical that the pressure gradient of wind is adequate in itself. It does happen. You just have to pay attention and listen for it. No references? I can't find one, I'll be honest with you. I know I've seen one - I just cant' seem to Google it up. I do know I tried to interest some people in this a long time ago, but was pretty much laughed at - I'm big enough to admit it. :) I promise - I'll find that reference today and get back to you. Later, Tom No rush, but if you happen across anything I'd be interested. I was curious about the mechanism and magnitude of effect. I'll try the IEEE archives. Thanks, -rick- There should be enough dust in any wind to get the doppler effect. |
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