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Modulation

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #44677 Reply
    samwel
    Guest

    What are different types of modulation used in Transmission and their comparisson

    #44678 Reply
    john
    Guest

    hi
    there is qspk, 8qspk,4qspk

    others can correct me

    #44679 Reply
    Prateek
    Guest

    3 Basic Types of modulation are :
    1. FSK – Frequency Shift Keying.
    2. ASK – Amplitude -,,-
    3. PSK – Phase -,,-

    All the modulation such as QPSK, GMSK etc are derieved from these basic types.

    GSM uses GMSK(Gaussian Minimum Shift Keying) and WCDMA-FDD used QPSK (Quadrature Phase Shift Keying)

    #44680 Reply
    Vanderlay
    Guest

    Also:
    EDGE – 8PSK
    WCDMA HSDPA – 16 QAM (Quadrature amplitude modulation)

    #44681 Reply
    samwel
    Guest

    How can one distinguish for each other in comparisson and how are they generated.( Literature)

Viewing 5 posts - 1 through 5 (of 5 total)
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