FIELD: physics.
SUBSTANCE: invention relates to radar ranging, in particular, to methods of determining characteristics of antenna radiation, and can be used in hardware and software systems and devices for determining spatial amplitude pattern of transmitting antennas of navigation satellites. Technical result is achieved due to the fact that in the method of determining the antenna pattern, characterized by performing measurements of the power of the signal emitted from the output of the transmitting antenna of the navigation satellite during its stay in orbit and received at the ground receiving antenna with a high gain so that each individual series of measurements of signal power is carried out only within time intervals of continuous visibility of the navigation satellite; converting obtained data into a form suitable for digital processing, subsequent normalization of data and digital processing of data; generating antenna pattern fragments based on digital data processing results, taking into account antenna pattern distortion; determination of the antenna pattern based on the set of formed fragments of the antenna directional pattern, performing additional measurements of the signal power during the period of the navigation satellite anticipatory turning relative to the first axis oriented to the Earth, wherein fragments of antenna beam pattern based on results of digital data processing, allowing to take into account distortions of antenna pattern, are formed with allowance for corrections calculated on the basis of obtained data of additional measurements of signal power during the period of navigation satellite anticipatory turning.
EFFECT: technical result consists in creating a method for determining spatial amplitude pattern of transmitting antennas of navigation satellites, which enables to take into account systematic error arising from non-collinearity of corresponding axes of polarization ellipses of satellite transmitting antenna and receiving ground antenna.
1 cl, 1 dwg
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