[time-nuts] AMU vs dBc

[Didier Juges]

How about Arithmetically Meaningless Units?

Didier

------Original Message------
From: Tom Van Baak
Sender: time-nuts-bounces at febo.com
To: Time-Nuts
ReplyTo: Tom Van Baak
ReplyTo: Time-Nuts
Subject: Re: [time-nuts] AMU vs dBc
Sent: Nov 23, 2009 4:05 PM

> A quick play with Gnumerics gave me the formula dBc = 20*log10(AMU)+25,5
> to have the best match, and RMS error of 2,23 where as the dBc = AMU + 
> 33,9 has the RMS error of 4,34.

AMU
Arbitrary Manufacturer Units
Antenna Measurement Units
Arbitrary Mystery Units

See if these help your estimate:

http://gauss.gge.unb.ca/papers.pdf/SNR.memo.pdf
ftp://goes.gsfc.nasa.gov/pub/chesters/goesref/Moreau_GPS.pdf
http://www.wavedigm.com/pdf/UG_smartGPS.pdf

/tvb


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