In 1950 the prototype MiG-15P bis (SP-1) was flight tested with the experimental radars Toriy, and Toriy-A. All of them were equipped with a parabolic antenna which performed both search and tracking function.
The system proved to be too complicated to be used in combat because the antenna was operated manually for tracking the target.
The MiG-15P bis (SP-5) was a parallel development equipped with Korshun AI radar, it used two antennas for search and automatic tracking.
In 1958 a small series of five aircraft was built with the new RP-1 Izumrud-1 (Scan Odd) AI radar. These aircraft were used to develop new night combat tactics for the MiG-17P (SP-7) all-weather interceptor.
Big-nosed transonic fighters... Dassault tried this trick many times from Ouragan to SMB-2 but always lost to the SO-4050 Vautour. At least the Mystère IVN prototype was cute (more than the usual Mystère) and broke records with Jacqueline Auriol at the controls; it has survived to the present day (at my happy place).