some discussion of methods of improving the electromagnetic
compatibility of a ribbon cable, the ribbon cable here is the one we
use in laboratories.

A very "open" question, but;
one can buy woven or twisted ribbon cable (using the concept of the
twisted pair) to improve emc response

you can shield the entire cable with hollow braid

you can shield with steel tubing

you can provide a ground plane using copper sheet or PC board material

you can modify the drive circuitry to reduce EMC effects

thanks for your answer, but i need some discussion