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Satellite communication ground station interference cancellation space sampling antenna design method

An interference cancellation and spatial sampling technology, applied in antennas, antenna arrays, design optimization/simulation, etc., can solve the problem that the sampling antenna cannot meet the actual environment, and achieve the effect of reducing RF loss

Active Publication Date: 2022-01-28
NAVAL UNIV OF ENG PLA
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Problems solved by technology

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a satellite communication ground station interference cancellation space sampling antenna design method, aiming to solve the problem that the existing space sampling antenna cannot meet the needs of the actual environment

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  • Satellite communication ground station interference cancellation space sampling antenna design method
  • Satellite communication ground station interference cancellation space sampling antenna design method
  • Satellite communication ground station interference cancellation space sampling antenna design method

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] figure 1 A flow chart of a satellite communication ground station interference cancellation space sampling antenna design method provided by an embodiment of the present invention; figure 1 As shown, the method includes the following steps:

[0050] S101. Determine the interference signal power received by the main antenna according to the Friesian transmission formula, and determine the interference suppression requirement based on the difference between the interference signal power received by the main antenna and the background noise power; the Friesian transmission formula is used fo...

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Abstract

The invention provides a satellite communication ground station interference cancellation space sampling antenna design method. The method comprises the steps of: drawing up an interference suppression requirement on the basis of a Friis transmission formula; designing a space sampling antenna / array; drawing up design indexes of space sampling antenna units on the basis of a sampling antenna coverage theory, an interference suppression requirement and a self-adaptive sidelobe suppression algorithm; adopting a polarization switching and adjusting mode to achieve sampling coverage horizontal and vertical linear polarization with a small number of channels; and evaluating the space sampling antenna / array, specifically, adopting a space sampling algorithm, importing interference source characteristics, interference coupling characteristics, an interfered mechanism and a directional diagram of the space sampling antenna / array, taking the ratio of signal to interference plus noise ratios before and after cancellation as an interference suppression ratio, and verifying whether the performance of the space sampling antenna meets the interference suppression requirement or not. The invention provides the general method for designing the satellite communication ground station interference cancellation space sampling antenna, and the method can be widely applied to the design of various other interference cancellation space sampling antennas.

Description

technical field [0001] The invention belongs to the technical field of sampling antennas, and more particularly relates to a design method of a satellite communication ground station interference canceling space sampling antenna. Background technique [0002] The spatial sampling antenna refers to a miniaturized antenna unit or array installed around the main antenna, which samples the interference source in space and is used for adaptive adjustment and synthetic cancellation of the interference cancellation device. Since each sampling antenna corresponds to a signal processing channel, the more sampling antennas there are, the more complex the cancellation processing system will be. Especially for satellite antennas in the Ku frequency band, the RF transmission attenuation is large, and the connection between the sampling antenna and the down-conversion module should be as short as possible, which undoubtedly increases the complexity of the spatial sampling module. At the ...

Claims

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Application Information

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IPC IPC(8): H01Q21/00G06F30/20
CPCH01Q21/0087G06F30/20
Inventor 罗康孟进王青何方敏杨凯李斌刘宏波
Owner NAVAL UNIV OF ENG PLA
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