Newspaper article from our research archive:
|
|
Spread spectrum: a protocol with a past and a future.(Forum on Business & Economics)
- Article from:
-
Phi Kappa Phi Forum
- Article date:
-
September 22, 2006
- Author:
-
|
Copyright informationCOPYRIGHT 2006 Honor Society of Phi Kappa Phi. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Information can be transmitted through the air using radio waves or microwaves, through copper wires using electricity, or through glass or plastic filaments (called fiber optics) using light. All of these carriers use parts of the electromagnetic spectrum that propagate signals of various wavelengths (measured in cycles per second) and that can be modulated (or modified) in various ways to carry information. To transmit in this manner, one can allocate a specific band of frequencies in the electromagnetic spectrum to carry an appropriate signal pattern. In the center of that band is the "carrier frequency" for the signal, and the signal patterns are standardized between ...
Related newspaper, magazine, and journal articles:
|
Spread-spectrum technology
InTech;
May 1, 2001 ;
700+ words
......technology unfeasible. Spread spectrum operates by spreading the transmitted signal over a wide range...multiple sources. With spread spectrum, both ends are...exactly when a signal should arrive and...interference. A system is spread spectrum if the following...The ...
|
|
Spread spectrum technology for low power PCS applications. (personal...
Microwave Journal;
October 1, 1995 ;
700+ words
......reduced the cost of spread spectrum designs and increased...This class of spread spectrum operation is now...system can spread a signal and easily fill...the advantages of spread spectrum must be examined...sequence RF designs. Spread spectrum's most basic ...
|
|
Spread-spectrum communication rises from military roots to star in...
EDN;
December 22, 1994 ;
700+ words
......ISM bands use spread-spectrum techniques, and...consequence, multiple signals can be present...widely touted spread spectrum's signal/noise and data-securi...the interfering signals is another factor that affects spread-spectrum's suitability...
|
|
Choices and confusion spread wider as spread spectrum goes mainstream....
EDN;
October 10, 1996 ;
700+ words
......receiver, the desired signal stands out; to...correlation, the spread-spectrum signals appear as noise...difficult to quantify spread spectrum's throughput...decoding a spread signal requires use of...called recombinant spread spectrum to minimize ...
|
|
Research and Markets Offers Spread Spectrum and CDMA Resources
Wireless News;
August 30, 2005 ;
174 words
......and Markets Offers Spread Spectrum and CDMA Resources...and Markets Offers Spread Spectrum and CDMA Resources...announced the addition of Spread Spectrum and CDMA: Principles...to its offerings. Spread spectrum and CDMA are technologies...resource presents the ...
|
|
New York Inventor Develops Spread Spectrum Communication Noise Shaping...
US Fed News Service, Including US State News;
October 25, 2008 ;
256 words
......for transmitting spread spectrum signal. According to the...Trademark Office: "A spread spectrum noise shaper uses...achieve a greater signal-to-noise or signal-to-interfer...by receiving the spread spectrum signal in the presence...
|
|
WHAT IS SPREAD SPECTRUM?
Chemical Engineering Progress;
April 1, 2004 ;
331 words
...Spread spectrum radio transmission...frequency of a radio signal is continually changed...There are two types of spread spectrum transmissions - direct...DSSS devices change a signal's frequency many times...re-transmit the message. The spread spectrum frequency bands in...
|
|
Site specializes in spread-spectrum methods
Microwaves & RF;
May 1, 1999 ;
700+ words
......comprehensive site. Spread-spectrum encoding packs...enables multiple signals to use the same...how received signals are demodulated...frequencyhopping, spread-spectrum (FHSS) systems...detection of PN spread-spectrum signals. This paper...
|
|
Acoustic Digital Spread Spectrum: An Enabling Technology
Sea Technology;
October 1, 2005 ;
700+ words
......robustness of Acoustic Digital Spread Spectrum (ADS^sup 2^) signalling...of arrival (TOA) of a signal at the receiver. The variance...both the bandwidth of the signal and the signal-to-noise ratio (SNR) at...or the bandwidth of the signal. Traditionally, the concentration...improved ...
|
|
Fixed frequency, FHSS, and DSSS.(Frequency-hopping spread spectrum,...
Sensors Magazine;
June 1, 2006 ;
700+ words
......two flavors of spread spectrum: frequency hopping...the carrier signal using amplitude...can see that a signal is being transmitted...Frequency-hopping spread spectrum (FHSS), a variant...changing the signal's carrier frequency...Direct-sequence spread spectrum ...
|
|
The RF architecture choice: which technology is right for you? (radio...
Industrial Distribution;
October 1, 1992 ;
700+ words
...Architecture Choice Spread Spectrum is the latest innovation...requirements. Q What Are Spread Spectrum And Narrow Band...Narrow Band (NB) and Spread Spectrum (SS) are radio...SS spreads the signal over a much wider...Narrow Band And Spread Spectrum Solve? Both ...
|
|
California, Utah Inventors Develop Spread Spectrum Signal Sequence...
US Fed News Service, Including US State News;
June 28, 2007 ;
246 words
......the spreading sequence of a spread spectrum signal. According to the U.S. Patent...A system for despreading a spread spectrum signal includes at least one receiver...plurality of snapshots of the signal and a processing device for...
|
|
PulseCore First to Offer Spread Spectrum EMI Reduction for USB.
PR Newswire;
April 2, 2008 ;
700+ words
......IC is the first Spread Spectrum technology to achieve...option of using Spread Spectrum clocking to reduce...EMI reduction is Spread Spectrum clocking, so called...peak power of the signal and thus helps ensure...Until now, however, Spread Spectrum clocking was ...
|
|
FreeWave Introduces New IM-E500 Wireless Spread Spectrum Radio for Mission...
PR Newswire;
August 28, 2006 ;
694 words
......reliable, high-throughput spread spectrum radio products and...board-level, wireless spread spectrum radio designed specifically...among all wireless spread spectrum offerings in the market...IM-E500 radio offers spread spectrum frequencies between...menu access as well ...
|
|
Finnish Inventors Develop Spread Spectrum System
US Fed News Service, Including US State News;
March 7, 2008 ;
234 words
......relates to a receiver in a spread spectrum system, comprising reception means for receiving a spread spectrum signal. The receiver comprises...interference from the received spread spectrum signal in one or more interference...cancellation method in a spread ...
|
See all results.
Or, try our
Advanced Search.
|