In 1926 he received his degree in electrical engineering from the Institute Normal Electro Technique in Paris, having obtained his first patent, for a radio compass.
In 1936 his equipment automatically guided an airplane from Paris to Réunion island off the coast of Madagascar, in the first practical demonstration of an aircraft guidance system.
[2] After the war, Busignies remained in the United States, where he rose steadily through ranks of ITT's senior management, ultimately becoming the corporation's Chief Scientist.
His inventions included contributions to Identification Friend or Foe (IFF) technology, conical scanning and 3-dimensional radar, gunfire and shell trajectory control, and deception systems.
He also played a large role in development of ILS, TACAN, VORTAC, phased arrays for communications, and the use of dipole needles in orbit for reflection of radio waves (Project West Ford).