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Method and device for controlling the off-axis equivalent radiated power of a satellite communication antenna in motion

A technology of equivalent radiated power and satellite communication, applied in the direction of sustainable communication technology, radio transmission system, advanced technology, etc., can solve problems such as the inability to use the airborne satellite broadband communication system, and achieve the effect of avoiding interference

Active Publication Date: 2022-06-07
航广卫星网络有限责任公司
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Problems solved by technology

Because of this nuisance, onboard satellite broadband communication systems are largely unavailable for transtropical flights

Method used

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  • Method and device for controlling the off-axis equivalent radiated power of a satellite communication antenna in motion
  • Method and device for controlling the off-axis equivalent radiated power of a satellite communication antenna in motion
  • Method and device for controlling the off-axis equivalent radiated power of a satellite communication antenna in motion

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Embodiment Construction

[0053] Figure 4 The method for controlling the off-axis equivalent radiated power of the satellite communication antenna in motion according to the present invention is shown, such as Figure 4 As shown, a method for controlling the off-axis equivalent radiated power of an airborne satellite communication antenna according to the present invention includes:

[0054] According to the position of the airborne satellite communication antenna and the position of the synchronous satellite, calculate the azimuth angle A, the elevation angle E and the polarization angle P of the satellite communication antenna;

[0055] According to the azimuth angle A, elevation angle E, and polarization angle P of the airborne satellite communication antenna, the off-axis gain of the current airborne satellite communication antenna along the orbit of the synchronous satellite is obtained, and it is used as the off-axis gain along the orbit G(θ) , see Figure 5 ;

[0056] According to the bandwidt...

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Abstract

The invention discloses a method and device for controlling off-axis equivalent radiation power of an airborne satellite communication antenna. The method includes: calculating the azimuth angle, Elevation angle and polarization angle; according to the azimuth angle, elevation angle, and polarization angle of the airborne satellite communication antenna, the off-axis gain of the current airborne satellite communication antenna along the direction of the geostationary satellite orbit is obtained, and it is used as the off-axis gain along the track ; According to the bandwidth of the transmission service, the power of the power amplifier and the off-axis gain along the track, the distribution of the off-axis equivalent power spectral density on the geostationary satellite orbit is obtained, and it is used as the off-axis equivalent power spectral density along the track; according to The off-axis equivalent power spectral density along the track controls the transmitting power of the airborne satellite communication antenna. The invention can make the interference of the satellite antenna to the adjacent static satellite less likely to exceed the standard, and avoid interference to the important business of the adjacent satellite.

Description

technical field [0001] The invention relates to the technical field of satellite communication, and relates to a method and a device for controlling the off-axis equivalent radiation power of a satellite communication antenna in motion. Background technique [0002] Satellite communications are widely used on mobile platforms such as vehicles, ships and aircraft. [0003] The electromagnetic wave beam emitted by the satellite communication antenna has a width, such as figure 1 . When the satellite antenna is aimed at the service satellite, the edge of the beam will interfere with the adjacent satellites in the synchronous orbit, which will increase the noise floor, such as figure 2 . If the interference exceeds the national or operator standards, the satellite company or radio monitoring department will manage and penalize the network access of the satellite communication system. [0004] For small-scale communication satellite communication systems in motion, in order ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
CPCH04B7/18543H04B7/1855Y02D30/70
Inventor 王堤刘峥葛健
Owner 航广卫星网络有限责任公司
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