If really struggling you could go down the Airborne Seperation Assisitance Systems (ASAS) route.This is not specific to the 146 as it is a general concept.
However it is avionics, and it is intended to improve operation costs with various levels of self seperation capability between co-operating aircraft.The advantage of going down the ASAS route is that there is loads of stuff available for your research. I suggest the EUROCONTROL web site as a good starting point.</p>