Accession Number : ADD003585

Title :   System to Simulate Motion and Plasma Induced Signal Variations from Reentry Vehicles.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Poirier,Joseph L ; Tropea,David H

Report Date : 25 Jan 1977

Pagination or Media Count : 16

Abstract : A system to simulate motion and plasma induced variations in the attenuation of signals transmitted from reentry vehicles uses a controlled attenuator which is programmed to vary the output power of a test transmitter in a way which simulates the variation which would be observed in actual flight is described. The simulator can be programmed by either an analog wave shaper or a digital driver to control the attenuation characteristics of a voltage control attenuator thus producing signal variations equivalent to those induced by the plasma sheath and motion of the vehicle.

Descriptors :   *Patents, *Microwave communications, *Simulators, Radio signals, Reentry vehicles, Microwave transmission, Motion, Plasma sheaths, Atmosphere entry, Attenuation

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE