METHOD OF SCANNING SPACE USING OPTOELECTRONIC SYSTEM Russian patent published in 2012 - IPC G01S3/78 

FIELD: physics.

SUBSTANCE: method of scanning space using an optoelectronic system involves scanning space on the azimuth and elevation coordinate, wherein scanning space on the azimuth coordinate is carried out with angular rate ω_az=Δφ_az·F_k, where ω_az is the angular rate of scanning; Δφ_az is the azimuth scanning pitch which is less than or equal to the angular dimension of the frame; f_k is the frame frequency of the matrix photodetector; forming an image of space scanning zone in the plane of the matrix photodetector; transferring the image of the scanning zone from the rotating coordinate system to a fixed coordinate system associated with the plane of the matrix photodetector; further formation of the oscillatory component of movement of the image in the plane of the matrix photodetector in the direction of azimuth scanning which satisfies the relationship Δω_az=A·(2πf_k)·Cos(2πf_kt), where Δω_az is the additive component of angular rate of scanning, which varies with time according to a harmonic law, A is the oscillation amplitude which satisfies the condition and the parameter α₁ which lies in the range π/2<α₁<π, is determined from the equation where σ_φ is the radius of the blur circle of the lens of the optoelectronic system; frame by frame exposure of photosensitive elements of the matrix photodetector, carried out in the time interval with the centre at time t₀, where the condition Cos(2πf_Kt₀)=-1 is realised, where Δt is given from the condition the parameter α₂ is determined from the equation

EFFECT: scanning space using an optoelectronic system with high frame frequency and angular resolution with increase in time for accumulation of signals by the matrix photodetector and high sensitivity of the apparatus.

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