help about modunlate OOK

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bangbi

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hello everyone! I'm try to simulate OOK modulation. EX I have seri bits :[1 2 4 5 6 2 3 4 6]. i don't know how to modulate it by OOK.
you can tell me, how to do it and what shape signal.
thank you!
 

bangbi said:
hello everyone! I'm try to simulate OOK modulation. EX I have seri bits :[1 2 4 5 6 2 3 4 6]. i don't know how to modulate it by OOK.
you can tell me, how to do it and what shape signal.
thank you!
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Hi Bangbi,

What You mean with "I'm try to simulate OOK modulation." ?

What you use, what simulator?
What compiler if uC is involved?
What module circuit?

OOK Modulation:


On-off keying (OOK) the simplest form of amplitude-shift keying (ASK) modulation that represents digital data as the presence or absence of a carrier wave. In its simplest form, the presence of a carrier for a specific duration represents a binary one, while its absence for the same duration represents a binary zero. Some more sophisticated schemes vary these durations to convey additional information. It is analogous to unipolar encoding line code.

On-off keying
https://en.wikipedia.org/wiki/On-off_keying



Best regards,
Peter
 

hello,i don't good at English.
if seri signal is 1s and 0s. I'm ok
i want to know the shape signal of seri signal is [1 2 3 4 5] by OOK modulation
 


thank a lot!
but i'm researching modulation OOK in optical communication, and i don't understand why performace of OOK is very bad.
this figure:

i refence :hulk.bu.edu/pubs/papers/2011/TR-2011-09-20.pdf‎
thanks all for help
 

Read these documents:

A COMPARISON BETWEEN OOK/ASK AND FSK MODULATION TECHNIQUES FOR RADIO LINKS
**broken link removed**


Optical Modulation Methods
**broken link removed**




Best regards,
Peter
 
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    KerimF

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