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Recent content by premkiran

  1. P

    RF system design for cellular wireless communications

    Hi all , I am working in the RF Digital front end design for cellular wireless communications. I am beginner in this domain . I have come across a book dealing with the details of the RF and ADC dynamic Range and AGC operations . In this regard i request every one to please let me know if this...
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    Put your reviews of this book here .

    I would be greatful , if any one please let me know to get a Pdf version of the following book .Reviews on this book are welcome. OFDM BASEBAND RECEIVER DESIGN FOR WIRELESS COMMUNICATIONS By Tzi Dhar Chiueh Thanks Prem
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    BPSK modulation - Doppler spread effects

    bpsk modulation Hi , I am working on OFDM systems. I have come across a paper on channel estimation methods for OFDM systems . In this paper it was mentioned that , BPSK modulation doesn't require the traking even in a time varying channel . would any one please explain the reason behind this...
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    How is the Voise SMS Designed ?

    Hi , Can any one please let me know , about the PHY level and application layer details of voise sms . PHY i would like to know how the voise is converted to data for transmission at block diagram level . Need application and MAC level protocols . Thank you Very much in advance . Prem
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    an equalization problem.

    I am trying to make an interpretation ... When d(k) converges, then your estimate of y(k) and detected y(k) , are the same . when you know the transmitted x , it means that , you have computed the H , channel from your estimate. And can use this channel for equalization.
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    IIR Filter could be causal or always non causal

    The filter equation , written by you, is a causal iir filter. Only the required specifications in designing a filter , can drive you either to causal/non causal filer equations.
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    what is frequency???????

    in a generic meaning , we can describe the frequency , as a parameter that describe the rate of change of a quantity . In communication systems , this talks about the rate of change of the signal amplitude . Here amplitude is the quantity .. that frequency tells about. The same understanding can...
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    Read and write operations issue?

    Hello, is it possible to perform read and write on the same Register (arbitrary width) with out any issue in a single clock period. ( order of read and write operations ,issued are important) pleae explain your remarks thank you premkiran
  9. P

    is possible to implement AND gate onlr with xor?

    good question.. NAND and NOR as universal gates. and not any other basic gates called so. this explains your answer

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