DSSS SYSTEM ( DIRECT SPREAD SPECTRUM SYSTEM )
swissen.in
Be Socialized And Subscribed
Be Socialized And Subscribed
Recive All Latest And Hottest Articles,Tips And Tricks,Awesome Widgets Directly Into Your Inbox And Stay UpDate With Us...!!!

E-Mail Will Be Delivered By FeedBurner.
      cheakout our partner sites Swissen Blog on Security & Technology,  php.swissen.in for Hd PHP Video Tutorial Learning    p.swissen.in for Photoshop Video Tutorial Learning  : admin

 

 

 

space

swissen.in

 

 

Top 5

Coming Soon .......

 

Recent ones
Coming Soon .......

 

CONNECT

 

Follow Us

 

 

guest information

 

IP address:
54.198.2.110

host address:
ec2-54-198-2-110.compute-1.amazonaws.com

browser info:
CCBot/2.0 (http://commoncrawl.org/faq/)

 

     

     

    DSSS SYSTEM

     

    DSSS System Introduction:

    It stands for Direct Spread Spectrum System.

    Its a modulation technique that takes a signal centerd around one frequency and spread it out over others.

    This is Design to lower the effect of noise make it difficult to jam and as well as to intercept.

    Spread spectrum techniques use pseudo noise to transmit the signal.

    Signal

     

    For Spread spectrum both the receiver and transmitter point need the ability to generate pseudo noise signal.

     

     

    DSSS TRANSMISSION


    A data signal is generated and enters in a spreader.

    Inside the spreader, a pseudo noise signal is generated and xored with data signal.

    D(t) Xor N(t) = Sd(t)

     

    dsss transmission

     

    The new signal is then modulated with an analog technique such as BPSK .

     

     

    DSSS RECEPTION


    Once the data is received, it is again demodulated and then send into a despreader to poduce original signal.

    *Sd(t) XOR N(t) = D(t)

     

    dsss reception

     

    Each data bit is combine ith a n-bit spreadind code.

    Logically the combination is an XOR. It means instead of a 0 and 1 data signal -1 and 1 are used.

     

     

     

    Submitter    fbprofile

    Submitted By : Suyash Srivastava

    Profile on Facebook : View profile