A towerless phasing method for simulating target position characteristics based on offset-fed antenna

A technology for simulating targets and antennas, applied in the field of aerospace measurement and control, which can solve the problem of high cost and achieve the effect of simple phasing process

Active Publication Date: 2021-11-30
北京航天驭星科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional calibration method needs to build a calibration tower tens of meters high to assist in the completion, which is relatively expensive

Method used

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  • A towerless phasing method for simulating target position characteristics based on offset-fed antenna

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawi...

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Abstract

The present invention relates to the technical field of spaceflight measurement and control, and specifically discloses a tower-less phasing method based on offset feed antennas to simulate target position characteristics, including performing phasing using target sources satisfying far-field conditions during equipment joint testing or tracking drills, After completion, transmit the frequency point signal through the bias feed antenna, feed the sum and difference signals into the downlink, and record the azimuth, elevation angle error voltage and polarity output by the demodulator; before tracking the target, transmit the frequency point signal through the bias feed antenna. point signal, adjust the phase shifter and gain control coefficients to make the magnitude and polarity of the azimuth and elevation error voltages equal to the previously recorded values. The invention can quickly realize the phase correction function before tracking satellites without a tower, the precision is equivalent to that of a standard calibration tower, and the phase correction process is simple.

Description

technical field [0001] The invention relates to the technical field of aerospace measurement and control, in particular to a towerless phasing method for simulating target position characteristics based on an offset feed antenna. Background technique [0002] At present, most ground station antennas of aerospace measurement and control systems adopt a single-pulse dual-channel tracking system. Because the sum and difference signals are transmitted in different channels, the phase difference of the sum and difference signals drifts with time. In order to ensure the tracking function, the tracking satellite The phase consistency of the sum and difference channels must be calibrated, that is, the phase correction process is completed. The traditional calibration method needs to build a calibration tower tens of meters high to assist in the completion, which is relatively expensive. Contents of the invention [0003] The technical problem to be solved by the present invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R25/00G01R29/10H04B17/12
CPCG01R25/00G01R29/10H04B17/12
Inventor 梁立明陈新宁尚建忠苏新军王新宏王青松
Owner 北京航天驭星科技有限公司
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