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Re: [WM]: Normalized Correlation
I stand corrected!
I am actually a bit surprised at how easy it is.
Thanks,
Joe
"Yuri V. Klimets" wrote:
>
> JOR> To make m-sequences orthogonal the missing all zero state needs
> JOR> to be included. This is not hard to do in software but in
> JOR> hardware a shift register would lock in an all zero state.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> There is pretty simple hardware implementation of LFSR with all
> states - you just have to add the wide N-OR gate that has all
> inputs connected to cells of shift register (the MSB is
> connected through the inverter) and output connected
> to the XOR gate in LFSR. Here is the sketch:
> _____
> /-------o| |
> / /-------| OR |
> / / /------| o---\
> / / / /-----| | |
> / / / / /----|_____| |
> | | | | | |
> ----------- /-------/
> |1|0|0|0|0|<-------------------\
> ----------- \ _____ |
> | | \___| | |
> \ \____________| XOR |---/
> \_________________| |
> |_____|
>
> This scheme will insert 00000 state after 10000 state preserving all
> others states in the sequence.
>
>
> Yours sincerely,
>
> Dr. Yuri Klimets
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