| 摘要 |
FIELD: the invention refers to the field of information-measuring technique of the flying vehicles. ^ SUBSTANCE: it may be used in instrumental complexes for measuring of the true air speed, angles of attack and sliding on heights, corresponding to the limits of perspective aircraft, and on the trajectory of movement in atmosphere of cosmic flying apparatus used many times. The mode is based on measuring Doppler shift of the frequencies of emanation of air medium. They excite with the aid of a laser in before breakdown regime a spontaneous emanation of molecules of the air medium in two points in front of a flying apparatus in its symmetry plane. They receive aboard the flying vehicle the emanation of each point picking up in it one spectral component in the shape of two differently directed mutually coherent beams lying in the same symmetry plane. They measure of difference of their frequencies with unequal Doppler shifts. The same is made by exciting spontaneous emanation in two points in the perpendicular plane. According to the results of measuring of four differences of frequencies they define values of true air speed, angles of attack and sliding. ^ EFFECT: increases accuracy of measuring of true air speed and angles of attack and sliding in conditions of high speed maneuvering flights on high altitudes in conditions of absence of moles. ^ 6 dwg |
