|
Explain Concept of Spread Spectrum? michaelchristopher 20-May-2008 09:49:46 PMComments www.howstuffworks.com/question326.htm - Posted by crouse en.wikipedia.org/wiki/Spread_spectrum Posted by crouse http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213041,00.html Posted by saqlain231 In general Spread spectrum is the technique which broaden your signal bandwidth and provide security Posted by HamidAliKhan http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213041,00.html Posted by Hash007 Spread spectrum is the technique which broaden your signal bandwidth and provide security.... Posted by waqqas1 When the information bearing signal and a PN sequence is multiplied at a multiplier we obtain the desired modulation. The question is how do we get the increase spectrum? This is a simple Fourier Transform property. Multiplication in time domain is convolution in frequency domain. Hence by multiplying a narrow band information signal and a wideband code sequence, the multiplied signal will have the spectrum similar to the wideband PN code sequence. Posted by kwwilliams It is a telecommunications technique in which a signal is transmitted in a bandwidth considerably greater than the frequency content of the original information. Methods include frequency hopping, direct sequence spreading, time scrambling, and combinations of these techniques. Posted by sagitraz Hi, Spread spectrum is a technique where you transmit the information over the air in a very wideband frequency i.e. in excess of bandwith with what actually is required to transmit.CDMA uses the same spread spectrum technique and a wideband channel of 1.23 Mhz. Hope it clarifies! Posted by elexdeepak1 |
Posted: 21-May-2008 05:53:11 AM By: elexdeepak1 Hi, Spread spectrum is a technique where you transmit the information over the air in a very wideband frequency i.e. in excess of bandwith with what actually is required to transmit.CDMA uses the same spread spectrum technique and a wideband channel of 1.23 Mhz. Hope it clarifies! | |
Posted: 21-May-2008 09:49:08 AM By: sagitraz It is a telecommunications technique in which a signal is transmitted in a bandwidth considerably greater than the frequency content of the original information. Methods include frequency hopping, direct sequence spreading, time scrambling, and combinations of these techniques. | |
Posted: 21-May-2008 10:42:27 AM By: kwwilliams When the information bearing signal and a PN sequence is multiplied at a multiplier we obtain the desired modulation. The question is how do we get the increase spectrum? This is a simple Fourier Transform property. Multiplication in time domain is convolution in frequency domain. Hence by multiplying a narrow band information signal and a wideband code sequence, the multiplied signal will have the spectrum similar to the wideband PN code sequence. | |
Posted: 30-December-2008 07:01:38 AM By: waqqas1 Spread spectrum is the technique which broaden your signal bandwidth and provide security.... | |
Posted: 28-February-2009 01:48:22 AM By: Hash007 http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213041,00.html | |
Posted: 24-April-2009 12:43:35 AM By: HamidAliKhan In general Spread spectrum is the technique which broaden your signal bandwidth and provide security | |
Posted: 08-June-2009 10:30:18 AM By: saqlain231 http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213041,00.html | |
Posted: 18-September-2009 04:38:29 AM By: crouse en.wikipedia.org/wiki/Spread_spectrum | |
Posted: 18-September-2009 04:41:24 AM By: crouse www.howstuffworks.com/question326.htm - |