[Moved] High resolution data samplings using Low data acquisition rates devices

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kicom

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[Moved]High resolution data sampling using Low data aquisition rates devices

Hi

I am currently following a course in RADAR.
I'm wondering how it is possible to achieve such high data acquisition rates by the receiver.
If to send a 1ns pulse the receiver should sample at 10GHz rate(sampled at about 10 times of frequency)
Is it possible to achieve such rates to have a better resolution but with low sampling rates??
I found that equivalent sampling technique is used in some cases.
But i couldn't find any reliable resources in that or other available methods.

Thanks
 

Re: [Moved]High resolution data sampling using Low data aquisition rates devices

Equivalent-time sampling is only possible for stationary signals. Most radar signal are not stationary because the object or the antenna (or both) are moving. They need realtime sampling methods.
 
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    kicom

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Re: [Moved]High resolution data sampling using Low data aquisition rates devices

Yes that also occurred to me.
But if we use ETS(Equivalent Time Sampling) with a compensation for variation in position we can derive the received signal upto a certain accuracy.Right???
Then what are the methods used in radar to achieve such high rates in data aquisition??
 

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