METHOD OF MEASURING RELATIVE SPEED OF OBJECT Russian patent published in 2016 - IPC G01S13/58 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering and can be used in short-range radar systems for measuring relative velocity of an object. Said result is achieved due to that, method of measuring relative velocity of an object from a point of space, remote from course of object, includes measuring radial velocity of object Vr₁ and distance of remote point to object, after a period of time t of more than two seconds, performing second measurement of radial velocity of object Vr₂ and distance from remote point to object b, further, determining distance c covered by object on course for time between first and second measurements, using formula: c=t·(Vr₁+Vr₂)/2, determining semiperimeter p of triangle abc, that is equal to 0.5(a+b+c), then by formula: determining tgA/2=r/(p-a), where r=√(p-a)·(p-b)·(p-c)/p, determining value of blunt angle A of triangle abc, that is equal to 2arctg[r/(p-a)]}, then relative speed of object is calculated by formula: V=Vr₂/cos(π-A) = Vr₂/cos{π-2arctg[r/(p-a)]}.

EFFECT: measurement of relative velocity of an object at angle of vision to heading greater than zero.

1 cl, 1 dwg