Flight Test Telemetry
IN-SNEC can build complete FLIGHT TEST TELEMETRY systems dedicated to the qualification of prototypes as well as to operational applications.
The high level of technology of its ONBOARD TELEMETRY equipment allows to IN-SNEC playing a major role in data acquisition and transmission to the ground which are used for the flight analysis.
IN-SNEC developed a telemetry system intended for the tests aboard aircraft (as AIRBUS A380). Then IN-SNEC offers a range of products for airliners, domestic aircraft, business aircraft, fighters and helicopters.
IN-SNEC manufactures all the elements of the chain between the sensors and the antenna which transmits data to the ground for the Ariane flight analysis, for instance ten Acquisition and Conditioning Master Units (ACMU), two Acquisition and Conditioning Slave Units (ACSU) and two transmitters per launcher.
IN-SNEC also designs the Acquisition and Conditioning Functional Units (ACFU) which provide information to the calculator during the Ariane mission.
IN-SNEC proposes on-board equipment for missile telemetry (tactical or ballistic) such PCM encoders with integrated conditioning, transmitters, flight test receivers as well as complete set. Transmitters, receivers are available for data transmission as well as a range of modules for encoded data transmissions. IN-SNEC is involved in almost all the French missile programmes. Its know-how is also well known abroad (Aster missile)
These equipment are designed to resist severe environments in terms of vibrations, radiation of particles and temperatures.
In GROUND TELEMETRY segment, IN-SNEC realizes and proposes :
A large family of Automatic tracking antennas (Hexapod, 2-axis and 1-axis) capable of receiving and transmitting signals from airborne vectors, suitable for flight test centres.
Example of realisation |
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L-band ground station
SPART type Antennas
Diameter 1.5 to 3m |
S-band mobile station
SPART type antenna
Diameter 1.2m |
S-band mobile station
Diameter 4.5m |
Example of telemetry chain (ground station + control room) |
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Telemetry of tactical and ballistic missiles as MONGE
More... (PDF file 657k) |
CNES 2GHz network for the Ariane flight tracking at Kourou (Guyane), Natal (Brésil), Libreville (Gabon) |
Multitarget (1 to 14 targets) tracking and reception as ECHO
More ... (ZIP format 2.4M) |
A control and monitoring system of the telemetry chains
RF products such Low Noise Amplifiers and signal processing receivers.
IN-SNEC develops special equipment for measurement and test of landing system : the generator is designed for calibration or checking of MLS (Microwave Landing system - C-band ) receivers and monitors, and the receiver is used by flight control services as well as airport maintenance services.
The IN-SNEC Muzzle Velocity Radar is able to measure the velocity of all type of projectile at different points of its trajectory, improving firing accuracy. |