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Method for analyzing mutual interference between satellite communication systems

A satellite communication system, mutual interference technology, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as mutual interference, and achieve the effect of reducing the number of

Active Publication Date: 2016-12-07
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Two satellite systems using the same frequency band or similar frequency bands may interfere with each other when they communicate

Method used

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  • Method for analyzing mutual interference between satellite communication systems
  • Method for analyzing mutual interference between satellite communication systems
  • Method for analyzing mutual interference between satellite communication systems

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Embodiment Construction

[0038] The invention proposes a method for analyzing mutual interference among satellite communication systems. In this embodiment, the interference caused by the communication link of the non-geostationary orbit satellite communication system to the communication link of the geosynchronous orbit satellite communication system is analyzed. figure 1 Flow chart of the method of the present invention.

[0039] Step 1. Determine the different satellite communication systems to be analyzed, including the satellites in the satellite communication system and the earth stations communicating with the satellites.

[0040] Such as figure 2 and image 3 A schematic diagram of a geostationary orbit satellite system and a non-geostationary orbit satellite system is shown. figure 2 is a schematic diagram of the downlink, image 3 A schematic diagram of the uplink. The said geostationary orbit satellite system and the non-geostationary orbit satellite system satellite use the same fre...

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Abstract

The invention belongs to the field of satellite communication, and particularly relates to a method for analyzing mutual interference between satellite communication systems. According to the method provided by the invention, the relationship between a phase track line and an interference protection area drawn on a phase plane is analyzed to analyze the mutual interference between different satellite communication systems and determine a time and a phase angle exceeding the interference protection standard. The analysis method provided by the invention is suitable for analyzing the mutual interference between multiple satellite communication systems, an orbit position change rule is reflected in phase angle change, so that the number of intermediate variables is reduced, and the method is more intuitive and effective.

Description

[0001] Patent field [0002] The invention belongs to the field of satellite communication, in particular to a method for analyzing mutual interference between satellite communication systems. Background technique [0003] Spectrum resources are non-renewable resources. The International Telecommunication Union divides several operating frequency bands in the spectrum for satellite communications. However, this static spectrum resource allocation method will lead to low utilization efficiency of spectrum resources to a certain extent. The method of cognitive radio emerges at the historic moment, and the premise of using this method is to avoid causing interference to the existing satellite system or the interference is less than the relevant protection standard. Therefore, interference analysis is an important step in the process of satellite system construction. [0004] In terms of interference protection standards, for multiple satellite systems that share frequencies, the...

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18513H04B7/18521
Inventor 靳瑾李娅强晏坚匡麟玲
Owner TSINGHUA UNIV
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