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Applied Physics and Mathematics

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MEASUREMENT ERROR DISTANCE AND CLOSING SPEED SPACECRAFT
YU.S. SAGDULLAEV, S.D. KOVIN

The problems of measuring the distance and relative speed of
convergence of spacecraft (SC), and especially the emergence
of error in the measurement of these parameters on the basis
of two-dimensional television (TV) images. It determines the
necessary accuracy in the measurement values presented
in the form of a number of lines (items) per the image SC
(its components) for a given measurement error range. An
expression for determining the relative error ranging TV. It
shows the relative error in distance measurement error value
to determine the true number of elements (rows) of the two
elements equal to the minimum duration and the image signal
SC corresponding to 4 to 16 pixels (lines). Expressions in error
for determining the true value of the number of items (rows)
for a given relative error of measurement of distance and
relative speed of the SC. The features of the eff ect of changes
in the relative velocity of the SC closer to the accuracy range
depending on the number of measurements. Expressions for
estimating uncertainty of measurement of the relative velocity
of the SC. The problems associated with the formation of errors
of measurement signals in the operator or automatic modes as
well as their absolute and relative error. To improve the accuracy
of measurement of distance and relative velocity of the SC
shown a method and apparatus for measuring TV signals of
short duration, which are connected with the extension length
of the source signals arriving at the SC to image S-time.
Keywords: Spacecraft, TV measurement error of measurement
range and relative speed.

Contacts: E-mail: sagdul@mail.ru

Pp. 16-21.

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