Emulational USB intermediate frequency responser used for satellite test and control

A transponder, intermediate frequency technology, applied in radio transmission systems, electrical components, transmission systems, etc., can solve the problems of difficulty in debugging and maintenance, large size, power consumption, loose equipment structure, etc., to facilitate simulation analysis, system stability, The effect of short feedback branches

Active Publication Date: 2011-04-20
BEIHANG UNIV
View PDF2 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, domestic USB answering machines have been implemented with a large number of analog and discrete components, which have the disadvantages of loose device structure, duplication of resources, complex interface, difficult debugging and maintenance, large size and power consumption, etc.

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
  • Emulational USB intermediate frequency responser used for satellite test and control
  • Emulational USB intermediate frequency responser used for satellite test and control
  • Emulational USB intermediate frequency responser used for satellite test and control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Such as figure 1 As shown, the present invention "an emulation USB intermediate frequency transponder for satellite measurement and control" consists of 6 parts, including: a front-end analog-to-digital converter 10, a digital down-conversion module 20, a carrier synchronization module 30, a demodulation filter module 40, The forwarding modulation module 50 and the output analog-to-digital converter 60 complete the reception and demodulation of the intermediate frequency received signal, provide the remote control sub-carrier signal, and modulate and forward the remote measurement sub-carrier signal and the ranging signal according to a certain process. Front-end analog-to-digital converter 10 and output analog-to-digital converter 60 use off-the-shelf products; Digital down-conversion module 20, carrier synchronization module 30, demodulation filter module 40 and forwarding modulation module 50 are realized in field programmable gate array (FPGA) . The connection rela...

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 an emulational USB intermediate frequency responser used for satellite test and control. The emulational USB intermediate frequency responser used for the satellite test and control consists of a front-end analog-to-digital converter, a digital down-conversion module, a carrier synchronization module, a demodulation filter module, a forwarding modulation module and an output analog-to-digital converter; the connecting relations and the signal flow paths are that: an output signal of the front-end analog-to-digital converter enters the digital down-conversion module for processing; the output of the digital down-conversion module is processed in the carrier synchronization module; an output signal of the carrier synchronization module enters the demodulation filter module for processing; one output signal obtained by the demodulation filter module is remote subcarrier output of a demodulator; the other signal is a ranging signal; the ranging signal enters the forwarding modulation module for processing; and the output signal of the forwarding modulation module enters a digital-to-analog converter; and the output of the digital-to-analog converter is an intermediate frequency output signal of the responser. The emulational USB intermediate frequency responser has high stability, low design complexity, high compatibility, a practical value and an application prospect.

Description

(1) Technical field [0001] The invention relates to a satellite measurement and control transponder, in particular to an intermediate frequency emulation digital transponder used in a unified S-band (“unified S-band” or Unified S-Band, hereinafter referred to as “USB”) measurement and control system. (2) Background technology [0002] With the development of the aerospace industry, the measurement and control systems of spacecraft such as high-orbit satellites, geostationary satellites, and spaceships require long range, high precision, multiple functions, and high reliability. The interference is serious and the operating distance is limited, which cannot meet the new measurement and control requirements. In this context, a unified carrier measurement and control system integrating tracking orbit measurement, telemetry and remote control is proposed. [0003] The so-called unified carrier measurement and control system refers to a comprehensive radio measurement and contro...

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): H04B1/59H04B7/185
Inventor 冯文全刘曦陆国雷刘苏潇谭大为刑小地熊洲马拂晓赵琦孙桦尹佳朱楠王冬赵洪博方勇张猛庞波
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