HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 2/2
boogieboogie
User Rank
Iron
Re: Supplement manufacturer
boogieboogie   8/21/2013 9:53:46 PM
NO RATINGS
 However, oversampling can become impractical but, it can be helped by using a technique called noise shaping. This technique decreases noise in the bandwidth and has less effect on the signal.

digitale optionen

aisin
User Rank
Iron
Re: Supplement manufacturer
aisin   11/16/2012 2:24:43 AM
NO RATINGS
It is nice that you posted something like this and I am quite lucky to read it. Thanks for posting this!www.watchoh.com www.qcwatches.com

phonesystems
User Rank
Iron
Oversampling Reduces Quantization Errors...
phonesystems   9/11/2012 1:17:44 AM
NO RATINGS
Tthe study quantization error is usually modelled as a uniform random variable and so while carrying on this you actually need to be very precised and accurate!!

business mobiles

cwoodhouse
User Rank
Silver
A good trick to keep in your pocket.
cwoodhouse   7/30/2012 10:44:03 AM
NO RATINGS
Great article!  Sometimes you have a fast ADC and a lot of time for a precision measurement.  In 1989 we scrapped a whole board of high precision analog components on a Shuttle experiment which took 5 seconds to produce a single 12 bit digitization by supeimposing a precision sine wave on the DC raw data and summing 2048 samples from the 12bit ADC.   We achieved 18 bit precision in one second.  The accuracy was improved by intermingling precision references and board temperature measurements, and applying post processing corrections. (US Patent 4973914).

mgd
User Rank
Iron
Soundcard
mgd   7/30/2012 10:19:38 AM
NO RATINGS
>A sound card, for example, relies on a sigma-delta converter that oversamples at up to 192 ksamples/sec. 

Maybe just a typo, but of course, that isn't oversampling. Audio HW that samples at 192k does so to get 90kHz of BW. The actual sampling rate will likely be 128*192k = 24.576MHz.

Jon Titus
User Rank
Blogger
Re: First Step
Jon Titus   7/28/2012 1:28:31 PM
NO RATINGS
Thanks, Nancy.  Yes, before you think about digitizing analog signals you must know much about them. Unfortunately, some engineers jump in and specify data-acquisition equipment they later find doesn't give them the results they expect. Early in my career I made similar mistakes.

Nancy Golden
User Rank
Platinum
First Step
Nancy Golden   7/28/2012 12:49:23 PM
NO RATINGS
I really appreciated your explanation of quantization errors and possible solutions, as well as the trade-offs that are involved. It seems to me from reading your blog that an important first step of any project would be to have a very good understanding of the precision required so that one knows what effect quantization errors would have and how far one should go in attempting to reduce or eliminate them. Thanks for the great information, Jon!

jackgmackel
User Rank
Iron
Supplement manufacturer
jackgmackel   7/28/2012 8:12:55 AM
I had little trouble with mine so I found good solution here.

 

Vitamin manufacturers



<<  <  Page 2/2


Partner Zone
Latest Analysis
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Two students have created a voice-command system for our homes, based on the simple and affordable Raspberry Pi.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Texas Instruments is rolling out a new microcontroller that could make the design of sensor networks and data logging systems simpler and less costly.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service