The QQ article says:
“Later technology developed by QinetiQ's predecessor include the Microwave Aircraft Digital Guidance Equipment (MADGE), developed as a tactical approach and landing system and was subsequently adopted by the Royal Navy for precision recovery of aircraft to the INVINCIBLE class aircraft carriers”.
Forgive me if I’m wrong, but I always thought MEL (later Thorn Radar, Racal Radar and now Thales) held the IPR on MADGE. Certainly the ARI and TGRI numbers indicate this (23252 / 23253). MoD funded mods to MEL’s generic design, and then Phase 2, which included;
MDDLS – MADGE Dummy Deck Landing System
NFIMS – Near Field Integrity Monitoring System
DATS - Digital Acquisition and Transmission System
A system ahead of its time, which suffered from the inexplicable decision to have MEL build the kit, but award the 2nd Line ATE contract to someone else. Not surprisingly, the kit arrived first, and when the ATE turned up it didn’t work. If I recall, the beginning of the end was a supply manager declaring all the LRUs consumable, yet sub-assys repairable. A bit like having a puncture, repairing it, but scrapping the rest of the car.