Decorrelation parameter in adaptive line enhancers (ALE)
Started by 4 years ago●2 replies●latest reply 4 years ago●119 viewsHi all,
When implementing an adaptive line enhancer (ALE), we must apply a time delay (decorrelation parameter) to the measured signal, in order to obtain the filter input.
My question is: is this time delay a circular or a "traditional" shift?
In other words: if the measured signal is
[4 3 7 1 8]
and the decorrelation parameter = 2,
shall the shifted signal look like this:
[1 8 4 3 7]
or this:
[0 0 4 3 7] ?
Thanks.
Best regards,
Artur
Artur-
If this page contains an accurate ALE diagram, showing a z-delta stage in a discrete time domain signal flow, then the shift would be linear ("traditional").
Using the nomenclature in your text the filter would see its input as:
[0 0 4 3 7]
[0 4 3 7 1]
[4 3 7 1 8]
:
:
-Jeff
Thanks a lot, Jeff!
Best regards,
Artur