Well, you beat me. I was planning to create a radar using sensors/rotors or a mod turret with sensors. With the release of the code, it was inevitable someone with programming knowledge would do this first.

If you're interested in realism though, here are a few suggestions:
First off, the programming version is most similar to phased array radar systems, which is good, those are the most advanced and can do things like detect altitude/speed/elevation without complicated additions.

So:
1: Have two kinds of radars
a: Search radars, which rotate 360 degrees to identify targets around the system
b: Tracking/fixed radars, which have a fixed field of view and track only targets in that area. Also, these are the radars which "lock on" (meaning they fixate and 'stare' at only a single target).
Notes: Weather/Early warning/traffic control radars are all the search variety (except those on Aegis Cruisers, which are literally multiple fixed arrays looking in all directions. All fighter aircraft have fixed arrays, designed to look in the front of the fighter (EW is done by things like AWACS).
2: Have a scan rate. In other words the targets are not constantly looked at, but only when the radar is looking in the direction.
3: Output the track info to LCDs. I believe this can be done akin to the inventory tracking mods. The LCDs present a track (target) each pass of the radar, keeping a copy of the last pass' tracks so the operator can identify moving targets.
4: No ID of targets, UNLESS the target has a functioning (turned on) antennae. Then it would be, "Friendly" for faction allys. Or "Unknown" for all others (until IFF options are available). Targets without antennae (asteroids) would return an IFF rating of "NONE".
5: Add in elevation (off of an artificial horizon based on radar's grid ref), angle, and speed data (non moving objects are rocks).
6: Extend (or shorten) the range of detection for small objects based on size of radar. Include options for sorting the different tracks the radar detects.
7: Large ship versions: 360 search radars and large fixed arrays. Small ship versions: large AWACS array, and small fighter nose fixed arrays.
8: If you can move to LCDs, take it off HUDs.

If you like these ideas (all based on real radar physics and operations) and have any questions, let me know.