MODE OF DEFINITION OF THE WIDTH OF THE SPECTRAL DENSITY OF POWER OF RADIO SIGNALS OF COHERENT METEOROLOGICAL RADAR Russian patent published in 2007 - IPC G01S13/95 

FIELD: the invention refers to radar meteorology and may be used for detection of atmospheric fields with increased level of turbulence.

SUBSTANCE: according to the mode it is necessary to radiate periodically radio impulses into the researched field of atmosphere, to receive radio signals reflected from meteorological particles, to separate coherent and quadrature components of received radio signals reflected from meteorological particles, to form a complex signal uniting coherent and quadrature components of received radio signals reflected from meteorological particles, to calculate the correlation function of the complex signal. The indicated function is calculated in time points the intervals between whom are multiple to the period of repetition of radio signals. The width of the spectral density of power of the radio signals of the coherent meteorological radar reflected from meteorological particles is defined according to the relation: , where ΔF - the width of spectral density of power of the radio signals of the coherent meteorological radar; - the value of a zero moment of spectral density power; - the value of the first moment of spectral density of power; -the value of the second moment of spectral density of power; k=(K(T_r), K(2T_r), K(NT_r) - the vector of the readings of correlation function of the complex signal in time points the interval between whom are multiple to the period of repetition of radio impulses; K(nT_r) - the value of the correlation function in a time point nT_r ; T_{r -} the period of repetition of radiated radio impulses; N - the number of time points of the reading of the correlation function; T - an operator of transposing; H - an operator of hermetian interfacing; g_p, p=0,1,2 - the vector equal to the column(p+1)of the matrix : G=A(A^HA)^-1, where A - the matrix of the size NxN: -an element of the matrix: A, standing at the intersection of m line and n column, m,n=1,2,N. EFFECT: increases accuracy of measuring the width of the spectral density of power of the signals of a coherent meteorological radar and by this the quality of detection in atmosphere of the zones of increased turbulence.

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