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Recent content by juhie

  1. J

    importance of orthoganality...help

    its from UWB Communications, can u say hw the orthoganality among users is achieved,(is it by giving distinct codes to each user,with each codes orthogonal 4m other)... when signals propagate in dense multipath channels..how orthoganality wil be lost? can u explain me..
  2. J

    wat is meant by cardinality of TH CODES...

    Time hopping codes.... wat is meant by cardinality of TH CODES...
  3. J

    importance of orthoganality...help

    orthoganality wat do orthoganalitity among users in multipath channels refer to... y is it so important to maintain orthoganality??
  4. J

    difference between detectors and equalizers

    detectors helps to detect the transmitted signal.Equalizers are used to adjust freequency response characteristic of systems... Can any1 help me to know what are the main differences... i want to learn about linear MMSE detection...suggest me the source references too..
  5. J

    explain me the output for this simple matlab commands.

    d=[0 0 0 0 0 0 0 0 0 0]; r=[0 1]; d(1:5:6)=r can any1 temme wat s the output and explain me on the indexing used ie d(1:5:6)..
  6. J

    DIFFERENCE BETWEEN CHIP TIME AND PULSE DURATION..

    duty cycle=pulse duration / total period. k,can any1 help me to know what is meant by cardinality of a time hopping code.
  7. J

    DIFFERENCE BETWEEN CHIP TIME AND PULSE DURATION..

    i know that chip is actually code symbols or pulse... so what is pulse duration and chip time,i have codings in which both of these have been assigned to two different values as 2ns and 1ns respectively..so any1 help me to understand the differences and significance plz...
  8. J

    What is the difference between estimators and equalisers...

    Re: What is the difference between estimators and equalisers first of all,thanks for reply. Can you explain what is non-stationary signals? i want to do frequency domain equalization for UWB signals.so cn u clarify me on your reply...
  9. J

    What is the difference between estimators and equalisers...

    equlisers... What is the difference between estimators and equalisers...
  10. J

    i need matlab codes for Frequency domain detectors

    hi, can any1 help me to find matlab codings for Frequency domain detectors 4 uwb communications short range systems.I tried in google,bt unable to find it.it would be great help if any1 help me to find tat.
  11. J

    help me to understand the basics concepts in UWB-IR.

    i read that in UWB-IR communicatiions MODULATION RESOLUTIONS LEADS to elimination of significant multipath fading. Can any1 help me to understand what is modulation resolution means and how wil it help to remove multipath fading. .... help me to understand the basics concepts in UWB-IR. how...
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