•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™

Sitemap

RF Cafe Software

RF Cascade Worbook
 RF Cascade Workbook 2005 - RF Cafe
Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
RF & EE Symbols Word
RF Stencils for Visio

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger
BSEE
KB3UON
EIEIO

Carpe Diem!
(Seize the Day!)

5th MOB:
My USAF radar shop

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding website

Doppler Damage - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Below are all of the old forum threads, including all the responses to the original posts.

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

 Post subject: Doppler Damage
Posted: Sun Nov 05, 2006 5:00 am 
 
Lieutenant

Joined: Mon Sep 12, 2005 4:02 pm
Posts: 4
Location: Washington DC
[color=blue]Hi,
I'm wonderning if I could get some reference material or email on the SNR loss with respect to Doppler losses and, if possible its effect w/r to modulation schemes. Mostly interested in X-to-V band with M-ary FSK, but PSK schemes, QPSK, CDMA would also be of interest.

Also would like to know timing delays for typical doppler compensation rate loops (ie how fast can ompensation loops track back to the reference signal? How many cycles are necessary to determine proper compensation? Is there an upper slew rate that is normally set for max doppler compensation in terms like (delta F/F) ? etc.)

Regards,
Michael.j.furman@mdnt.com






Posted  11/12/2012

Try Using SEARCH to Find What You Need.  >10,000 Pages Indexed on RF Cafe !

Copyright 1996 - 2016
Webmaster:  Kirt Blattenberger, BSEE - KB3UON
Family Websites:  Airplanes and Rockets | Equine Kingdom

All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.