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
A Frost & Sullivan study finds that increased cyber attacks are prompting a flurry of innovative protection tools.
Devices and interconnected systems are finding a foothold not only in our homes but in mainstream organizations. Here are three tips to mitigate the risk.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
More:Blogs|News
Design News Webinar Series
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Mar 30 - Apr3, Getting Hands-On with Cypress’ PSoC
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


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.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service