Satellite communication link supportable system and optimization method thereof

A satellite communication and supporting technology, which is applied in the field of satellite communication, can solve the problems of difficult coexistence of large and small carriers and low transponder power utilization rate, and achieve the effect of improving power utilization rate, avoiding unevenness, and effectively utilizing

Inactive Publication Date: 2009-12-23
BEIHANG UNIV
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of difficult coexistence of large and small carriers and low transponder power utilization in traditional satellite communications, to propose a link supportability system for satellite communications, and to propose a heuristic optimization method for this system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Satellite communication link supportable system and optimization method thereof
  • Satellite communication link supportable system and optimization method thereof
  • Satellite communication link supportable system and optimization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] Embodiment 1: Analyze the link supportability of the satellite communication system with the link supportability system and optimization method proposed by the present invention

[0138] The link supportability of the digital channelized satellite communication system is analyzed by using the digital channelized satellite communication link supportability system and its optimization method of the present invention, and the results are shown in Table 4.

[0139] Table 4 The results obtained by analyzing the link supportability of the satellite communication link supportability system and its optimization method

[0140] link type

[0141] It can be seen from Table 4 that in all three links, the required uplink EIRP of the transmitting terminal is smaller than its maximum EIRP, so all of them can be supported by the system. In this case, the link support rate reaches 16 / 16, that is to say, the link supportability system proposed by the present invention solves t...

Embodiment 2

[0142] Embodiment 2: Using the link supportability system and method proposed by the present invention to analyze the power utilization rate of the transponder in the satellite system.

[0143] For digital channelized satellite communication systems, the existing link supportability system is the p-norm system shown in equation (12)

[0144] minimize Σ i = 1 M y i p , p≥1

[0145] (12)

[0146] subject to y i / b i f i ( Y ) ≥ c i , ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a satellite communication link supportable system and an optimization method thereof. The system consists of five modules of a maximum value selection module, a logarithmic barrier processing module, an adjustable attenuation module, a penalty function processing module and an adjustable amplifier module. The optimization method firstly carries out initialization, then sequentially selects an initial neighbourhood, obtains a new point in the initial neighbourhood, carries out local research and finally carries out neighborhood change. The application of the link supportable system and the optimization method thereof can effectively solve the difficult problem of co-exist of big and small carriers in a multi-carrier satellite communication system, improves the capacity of the system and the power utilization rate of a transponder and has very important theoretical guiding significance and engineering practical value for the design of the satellite communication system.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a satellite communication link supportability system and an optimization method thereof. Background technique [0002] Nowadays, many satellite communication systems adopt a multi-beam frequency-division multiple access (FDMA for short) communication scheme. Under this communication system, the system can be compatible with various types of ground terminals, including airborne, shipborne, vehicle-mounted and even handheld terminal equipment. For satellite communication links where small-caliber terminals such as hand-held terminals are located, satellite power resources are more valuable than bandwidth resources; at the same time, in this multi-carrier satellite system, the power amplifier of the satellite transponder needs to amplify many times at the same time. carrier. Due to the non-linearity of the power amplifier, when multi-carrier signals pas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B7/02H04B7/185
Inventor 刘红英阳志明
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap