METHOD FOR PASSIVE SINGLE-POSITION ANGULAR-DOPPLER LOCATION OF RADIO-EMITTING OBJECTS MOVING IN SPACE Russian patent published in 2019 - IPC G01S11/10 

FIELD: radio equipment.

SUBSTANCE: invention relates to radio engineering and can be used in passive radar and radio surveillance systems for single-position determination of velocities, coordinates and trajectories of radio-emitting objects (REO) moving in space. Estimating values of spatial heading angles γ_k of REO on inclined planes 0A_lA_k, passing through sections A₁A_k trajectories, where A₁, A₂, … A_k, … A_K – points on movement trajectory REO, in which it is at equidistant moments in time, and the observation point lying outside the trajectory, calculating the ratio of Doppler frequency shifts to obtain an equation for the inclined course angle γ₁, solving which determine current values of heading angles, magnitude of velocity module REO, length of path passed by object between points of trajectory A₁ and A_k, and the value of the inclined range in case the object is in points A_k trajectory, as well as modulus of speed of radio-emitting object when it is in points A_k. Then trajectories of objects are constructed using measured and calculated values of their angular coordinates, inclined distances, heading angles and speeds of movement.

EFFECT: one-position measurement of directions and speeds of movement REO, moving in space uniformly and rectilinearly with variable altitude of flight, as well as trajectories of set construction REO, moving with arbitrary course angles and diving angles (pitching).

1 cl, 1 tbl, 6 dwg