| 摘要 |
FIELD: measurement of range to flight vehicles. SUBSTANCE: the method is based on controlled variation of main pulse repetition period, it consists in the fact that radio pulse bursts are radiated with a base pulse repetition period in a burst equal to Tscan,, bursts of radio pulses reflected from the flight vehicle are received, and after detection of the flight vehicle, to which the range is to be measured, three pulse repetition periods are computed To = 2Tscan, T1 = 2Tscan+iTheta, T2 = 2Tscan-iTheta, where Q - the minimum probable discrete sampling of pulse repetition period in pulse Doppler radars; i and j - integral numbers not having a common divisor, radiate and receive bursts of radio pulses with the mentioned pulse repetition periods in the bursts, and an ambiguous range for each burst is measured, Dam0, Dam1 and Dam2, respectively, number m1, m2 and m3 of ambiguous ranges Dam0, Dam1 and Dam2, respectively, confined themselves to the range to the flight vehicle, and new values of integral numbers j and i are computed on their base, that are used for computation of new values of the pulse repetition period T0, T1 and T2, the ambiguous range, Dam0, Dam1 and Dam2, respectively is measured for each burst of radio pulses, m1, m2 and m3 are computed, and on their base the true range to the flight vehicle is computed. EFFECT: enhanced precision of range measurement. 1 dwg
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