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Method for determining nonuniform link gain of flexible forwarding satellite system

A link gain and determination method technology, applied in the field of satellite wireless communication, can solve problems such as large amount of calculation, many parameters, complex implementation process, etc., achieve good performance, reduce nonlinear influence, and reduce the effect of solving parameters

Active Publication Date: 2014-12-17
PLA UNIV OF SCI & TECH
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Problems solved by technology

[0005] In short, the determination of the non-uniform channel link gain in the flexible forwarding satellite system in the existing technology involves many parameters, complex implementation process, and large amount of calculation

Method used

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  • Method for determining nonuniform link gain of flexible forwarding satellite system
  • Method for determining nonuniform link gain of flexible forwarding satellite system
  • Method for determining nonuniform link gain of flexible forwarding satellite system

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Embodiment Construction

[0023] Such as Figure 4 Shown is a schematic diagram of the structure of the flexible forwarding satellite system. The flexible transponder satellite system has a flexible transponder satellite and multiple ground transceiver stations, a single transponder has N sub-channels, each sub-channel gain can be configured independently, and there is only one high power amplifier in a transponder, and there are M communication link. The present invention will be described below by taking WGS satellite parameter configuration as an example.

[0024] Such as figure 1 As shown, the method for determining the non-uniform channel link gain of the flexible forwarding satellite communication system of the present invention includes the following steps:

[0025] 11) Resource allocation and link parameter setting: allocate transponder sub-channel resources for each satellite link, determine ground transceiver station antenna parameters, receive carrier-to-noise ratio threshold c i and the...

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Abstract

The invention discloses a method for determining nonuniform link gain of a flexible forwarding satellite system. The method includes performing resource distribution and link parameter setting; calculating link gain under different working point conditions; judging whether a link can be on or not; selecting an optimal working point for a forwarder; calculating an EIRP (effective isotropic radiated power) value of a ground uplink terminal and link gain. By the method, link gain of a nonuniform channel of the flexible forwarding satellite communication system can be determined simply and quickly, and system capacity and power resource utilization rate can be improved effectively.

Description

technical field [0001] The invention belongs to the technical field of satellite wireless communication, in particular to a method for determining non-uniform channel link gain of a flexible forwarding satellite system. Background technique [0002] With the continuous development of multi-beam and multi-service satellite communications, the existing on-board forwarding methods have certain limitations in the ability to realize the exchange of large-capacity broadband non-uniform communication services: the transparent forwarding method is simple and flexible, but the exchange is fixed, which is easy to cause Frequency resources are wasted; regenerative forwarding mode has high system capacity, but low flexibility and high equipment implementation complexity. In recent years, flexible transponders, as an efficient on-board switching payload, can complete flexible routing switching and channel gain adjustment of signals between any channels through digital channelization tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W84/06
CPCY02D30/70
Inventor 边东明张飞蒋丽凤张更新谢智东胡婧苟亮张威
Owner PLA UNIV OF SCI & TECH
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