Henri G. Busignies
Encyclopedia
Henri Gaston BusigniesHenri Gaston Busignies (Sceaux, Hauts-de-Seine
Sceaux, Hauts-de-Seine
Sceaux is a commune in the southern suburbs of Paris, France. It is located from the center of Paris.-Wealth:Sceaux is famous for the Château of Sceaux, set in its large park , designed by André Le Nôtre, measuring...

, France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

, 29 December 1905 - Antibes
Antibes
Antibes is a resort town in the Alpes-Maritimes department in southeastern France.It lies on the Mediterranean in the Côte d'Azur, located between Cannes and Nice. The town of Juan-les-Pins is within the commune of Antibes...

, France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

, 20 June 1981) was an electrical engineer who made major contributions to radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

, radio communication, and radio navigation
Radio navigation
Radio navigation or radionavigation is the application of radio frequencies to determine a position on the Earth. Like radiolocation, it is a type of radiodetermination.The basic principles are measurements from/to electric beacons, especially...

. He held 140 patents, many of them secret.

Biography

Busignies became interested in amateur radio
Amateur radio
Amateur radio is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication...

 at an early age, and graduated from the Jules Ferry College in Versailles
Versailles
Versailles , a city renowned for its château, the Palace of Versailles, was the de facto capital of the kingdom of France for over a century, from 1682 to 1789. It is now a wealthy suburb of Paris and remains an important administrative and judicial centre...

. In 1926 he received his degree in electrical engineering
Electrical engineering
Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical...

 from the Institute Normal Electro Technique in Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, having obtained his first patent, for a radio compass.

In 1928 Busignies joined ITT Corporation
ITT Corporation
ITT Corporation is a global diversified manufacturing company based in the United States. ITT participates in global markets including water and fluids management, defense and security, and motion and flow control...

's Paris Laboratories, where he developed radio direction finders, airplane radio navigation devices, and early radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

 systems. In 1936 his equipment automatically guided an airplane from Paris to Réunion
Réunion
Réunion is a French island with a population of about 800,000 located in the Indian Ocean, east of Madagascar, about south west of Mauritius, the nearest island.Administratively, Réunion is one of the overseas departments of France...

 island off the coast of Madagascar
Madagascar
The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

, in the first practical demonstration of an aircraft guidance system.

During World War II his inventions were instrumental in radio direction finding, including four secret patents relating to the automatic high-frequency direction finding (Huff-Duff
Huff-Duff
High-frequency direction finding, usually known by its abbreviation HF/DF is the common name for a type of radio direction finding employed especially during the two World Wars....

) system used to locate German U-boat
U-boat
U-boat is the anglicized version of the German word U-Boot , itself an abbreviation of Unterseeboot , and refers to military submarines operated by Germany, particularly in World War I and World War II...

s. Busignies had escaped from German-occupied Paris with his wife and working models, ultimately making his way to the United States, where the inventions were implemented first along the East Coast, then the West Coast, with another 30 to 40 fixed stations located around the world. About 1,000 smaller systems were installed on aircraft carrier
Aircraft carrier
An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power worldwide without having to depend on local bases for staging aircraft operations...

s and destroyer
Destroyer
In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...

s, as well as a further 1,500 mobile systems for the Army Signal Corps. He was also closely involved in early development of Moving Target Indication
Moving target indication
Moving target indication is a mode of operation of a radar to discriminate a target against clutter. In contrast to another mode, stationary target indication, it takes an advantage of the fact that the target moves with respect to stationary clutter. The most common approach takes advantage of...

 (MTI) radar during the war.

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
Identification friend or foe
In telecommunications, identification, friend or foe is an identification system designed for command and control. It is a system that enables military and national interrogation systems to identify aircraft, vehicles, or forces as friendly and to determine their bearing and range from the...

 (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
Instrument Landing System
An instrument landing system is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument...

, TACAN
Tactical Air Navigation
A tactical air navigation system, commonly referred to by the acronym TACAN, is a navigation system used by military aircraft. It provides the user with bearing and distance to a ground or ship-borne station. It is a more accurate version of the VOR/DME system that provides bearing and range...

, VORTAC, phased array
Phased array
In wave theory, a phased array is an array of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and suppressed in undesired directions.An antenna array...

s for communications, and the use of dipole needles in orbit for reflection of radio waves (Project West Ford
Project West Ford
Project West Ford was a test carried out by Massachusetts Institute of Technology's Lincoln Laboratory on behalf of the United States Military in 1961 and 1963 to create an artificial ionosphere above the Earth...

). He retired from ITT in 1975.

Busignies was an IEEE Fellow
IEEE Fellow
An IEEE member is elevated to the grade of IEEE Fellow for "unusual distinction in the profession and shall be conferred by the Board of Directors upon a person with an extraordinary record of accomplishments in any of the IEEE fields of interest"...

, and given an honorary Doctor of Science by Newark College of Engineering (1958), and the Brooklyn Polytechnic Institute (1971). He received numerous other awards and honors during his career, including notably the IEEE Edison Medal
IEEE Edison Medal
The Edison Medal is presented by the IEEE "for a career of meritorious achievement in electrical science, electrical engineering or the electrical arts." It is the oldest and most coveted medal in this field of engineering in the United States. The award consists of a gold medal, bronze replica,...

 (1977), the Armstrong Medal from the Radio Club of America, and the Industrial Research Institute Medal. He was elected a member of the National Academy of Engineering
National Academy of Engineering
The National Academy of Engineering is a government-created non-profit institution in the United States, that was founded in 1964 under the same congressional act that led to the founding of the National Academy of Sciences...

(1966), and served as chairman of several of its committees.

Sources

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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