On Apr 8, 6:57 am, "Keith Dysart" wrote:
Do Born and Wolf offer crisp definitions of the boundaries
between coherent, partially coherent, and mutually incoherent?
Or is it a continuum arbitrarily divided into 3 regions for
the purposes of discussion?

I don't have Born and Wolf with me at the moment but I seem
to recall that they said that any signal that was not single
frequency could not be 100% coherent. Presumably a signal
with modulation would be partially coherent.
--
73, Cecil, w5dxp.com