METHOD OF DETECTING OBJECTS, MEASURING VELOCITY, RANGE AND ANGULAR COORDINATES AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2014 - IPC G01C3/08 G01S17/58 G01P3/36 

FIELD: physics.

SUBSTANCE: method involves detecting reflected light pulses, digitising received signals, calculating range to objects and velocities of moving objects and determining angular coordinates. The signals are differentiated during digitisation. Time intervals between emission and portions of differentiated signals corresponding to front edges of received light pulses, as well as time intervals t₂ between portions of differentiated signals corresponding to front edges and trailing edges of received light pulses are simultaneously measured. The velocity x of moving objects is determined: $$\upsilon =c\cdot \left(1-\frac{t_2}{t_1}\right),$$ where c is the speed of light in the medium; t₁ is the duration of the emitted light pulse. The apparatus comprises a signal digitisation unit made from a multichannel time interval measuring device and n differentiators, inputs of which are connected to outputs of photosensitive elements, and outputs are connected to signal inputs of the multichannel time interval measuring device, the output of which is connected to the input of a control unit.

EFFECT: simultaneity and accuracy of detecting objects, measuring velocity of objects, distance and angular coordinates.

2 cl, 1 dwg