RADAR METHOD OF DETERMINATION OF PARAMETERS OF SEA SURFACE AND DEVICE TO IMPLEMENT IT Russian patent published in 1994 - IPC

FIELD: radio location. SUBSTANCE: radar method of determination of parameters of sea surface includes vertical emission of SHF radio pulses towards sea surface from flying vehicle when flying along line of main run of sea waves at altitude L < λ_min/2γ, where λ_min is minimum length of sea wave resolved by radar, γ is width of directivity diagram of radar aerial, measurement of speed V_fv and altitude of flight of flying vehicle, power P_Σ of transmitter of signals reflected from troughs r₁ and crests ρ₂ of sea waves, period T_s of signal reflected from sea surface and calculation of parameters of trochoidal approximation of sea surface by formulas: , where λ = T_sV_fv is coefficient of directed action of aerial of radar, λ is length of radar wave. Device to implement this method has aerial 1, aerial switch 2, receiver 3, envelope detector 4, pulse transmitter 5, first indicator 6, first delay element 7, gating unit 8, second delay element 9, first key 10, first storage 11, first averager 12, first differentiator 13, first amplifier-limiter 14, second differentiator 15, second amplifier-limiter 16 former 17 of gating pulse, counting flip-flop 18, second key 19, second storage 20, second averager 21, second indicator 22, third differentiator 23, third amplifier-limiter 24, meter 25 of signal period, fourth differentiator 26, fourth amplifier-limiter 27, altimeter 28, meter 29 of of flying speed of flying vehicle, power meter 30, calculator 31 of parameters of sea surface. EFFECT: increased authenticity of determination of parameters of sea surface. 3 dwg