FIELD: measuring equipment.
SUBSTANCE: shell speed is measured using two velocimeters and associated first and second radio-Dopplers generating Doppler-equal direction in the line of reference trajectory of shell flight. Maxima directivity pattern of specified radio-Dopplers form acute angle with shell flight trajectory. Sequence of shell discrete current speeds are formed in each velocimeter on Doppler frequencies of output signal of first and second radio-Dopplers. Measurement results are compared. If they are established to be equal, then shell is on reference trajectory, disturbance of resulted equality shows that shell is considered to deviate from reference trajectory.
EFFECT: expansion of information value.
1 dwg
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