generate AMI line coding

[hoong]

how can i generate an ami signal in labview? i am a newbie in labview. any advice would be helpful. 

[GerdW]

Hi hoong,

I guess you talk about Alternate Mark Inversion signals…

mark := 1
FOR each bit in waveform
  IF bit == 0 THEN
    output := 0
  ELSE
    output := mark
    mark := -1*mark
  ENDIF
NEXT

 So you need a FOR loop with a shift register for your "mark" and a case structure. Everything else is autoindexing your input/output array…

[hoong]

is there any other way to generate this signal. like using block in labview. because i am not familiar with programming codes.

[Dennis_Knutson]

It's a pretty simple code to write. You should take any of the numerous free tutorials.

That being said, one of the examples that used to come with LabVIEW was a simulated T1 test that had an AMI subVI. I don't know if it's still included. It was a database example If I recall correctly.