Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

VSAT (Very Small Aperture Terminal) satellite communication L wave band up-converter control method

A technology of frequency converter control and satellite communication, applied in radio transmission systems, electrical components, transmission systems, etc., can solve the problems of time-consuming and error-prone, long response time of pure manual control, shortening parameter adjustment time and improving operation reliability. Sexuality and Swiftness Effects

Inactive Publication Date: 2013-03-13
CHENGDU LINHAI ELECTRONICS
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of long response time and error-prone control of L-band up-converter in the prior art, the invention provides a VSAT satellite communication L-band up-converter control method

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
  • VSAT (Very Small Aperture Terminal) satellite communication L wave band up-converter control method
  • VSAT (Very Small Aperture Terminal) satellite communication L wave band up-converter control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] The up-converter uses an intermediate frequency between the baseband frequency and the radio frequency as a transition, first moves the baseband frequency signal up to the intermediate frequency, modulates and demodulates the signal at the intermediate frequency, and then performs spectrum modulation on the signal Converted into a radio frequency signal to be launched into space, the up-converter is the satellite ground station launch device that realizes the above-mentioned frequency up-shifting function.

[0036] After the up-converter receives the input signal from other devices via wired or wireless means, it sets the frequency and gain of the intermediate frequency signal through the intermediate frequency bandwidth selection module. After the frequency is shifted up twice by the first frequency conversion module and the...

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 provides a VSAT (Very Small Aperture Terminal) satellite communication L wave band up-converter control method, comprising the following steps: step 1, initializing a system; step 2, entering a waiting state, and entering step 3 if detecting that an input order exists in the waiting state; step 3, judging the order, entering step 4 if judging that the order is true, and returning back to step 2 if judging that the order is not true; step 4, processing the order; and step 5, controlling event processing and returning back to step 2 after the upper converter completes the operation. Controlling the event processing in step 5 comprises the following event processing of pre-selector arrangement, middle-frequency bandwidth arrangement, program control attenuation control, first local oscillator frequency control and second local oscillator frequency control. With the adoption of the VSAT satellite communication L wave band up-converter control method provided by the invention, the input order is received; relative modules of the upper-converter can be automatically controlled; and the corresponding parameters can be adjusted, so that the intelligent control can be realized; the real-time operation of the input order can be realized; the parameter adjusting time can be reduced; and the operation reliability and the rapidness of the upper-converter can be improved.

Description

technical field [0001] The invention relates to the field of electronic communication, and relates to a control method of an L-band up-converter for VSAT satellite communication Background technique [0002] VSAT (Very Small Aperture Terminal, Very Small Aperture Antenna Earth Station) for satellite communication has the characteristics of strong flexibility, high reliability, convenient use, and small stations can be directly installed on the user end. Using VSAT user terminals can be directly connected to the computer network, Complete communication tasks such as data transfer, file exchange, and image transmission, thus getting rid of the problem of long-distance communication ground interruption stations. So it is a good choice to use VSAT as a dedicated long-distance communication system. The so-called small aperture specifically refers to the small aperture of the satellite signal receiving antenna, usually only 1.2 to 2.4 meters. [0003] In the satellite communicat...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
Inventor 吴伟林杨宇航何戎辽吴博李凯
Owner CHENGDU LINHAI ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com