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Dual-band channel multiplexing small-scale measurement and control data transmission system

A channel multiplexing, dual-band technology, applied in the field of telecommunications, to achieve the effect of small size

Active Publication Date: 2013-05-22
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In the prior art, the measurement and control digital transmission system only works in a single frequency band and signals with different functions adopt different modulation methods

Method used

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  • Dual-band channel multiplexing small-scale measurement and control data transmission system

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Embodiment Construction

[0038] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0039] figure 1 It is a functional block diagram of the dual-band channel multiplexing small-scale measurement and control data transmission system of the present invention, a dual-frequency channel multiplexing small-scale measurement and control digital transmission system, the system includes:

[0040] Multiple receiving antennas 1 are used to receive multiple radio signals from space;

[0041] The first transmitting antenna 2 radiates the multiple radio signals received by the multiple receiving antennas 1 into space at a frequency of the second frequency band;

[0042] Multiple second transmitting antennas 3, radiating the multiple radio signals received by the multiple receiving antennas 1 to space at the frequency of the first frequency band;

[0043] Response communication module 4, selects the multiple radio signals received by the multi...

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Abstract

The invention discloses a dual-band channel multiplexing small-scale measurement and control data transmission system which comprises an overpay receiving antenna, a first transmitting antenna, an overpay second transmitting antenna, a response communication module, a first power amplifier, a second selective switch and a transmitter module. The overpay receiving antenna receives multi-channel radio signals. The first transmitting antenna and the overpay second transmitting antenna respectively enable the multi-channel radio signals to radiate into space by using the frequency of a second frequency range and the frequency of a first frequency range. The response communication module selects the multi-channel radio signals and outputs multi-channel remote signals after being modulated, and at the same time, receives first remote metering / data transmission signals, and outputs second output signals after correlation and modulation. The first power amplifier works and enables power of the second output signals to be amplified at the first frequency range. The second selective switch receives the second output signals with the amplified power and outputs the second output signals to the overpay second transmitting antenna. The transmitter module receives second data transmission signals and transmits the data transmission signals after the data transmission signals are amplified to the first transmitting antenna.

Description

technical field [0001] The invention relates to electric communication technology, in particular to a dual-band channel multiplexing small measurement and control data transmission system. [0002] Background technique [0003] The space system is composed of spacecraft, space transportation system, space launch site, space measurement and control network, and space application system. It is a large-scale and technology-intensive comprehensive system. The measurement and control digital transmission system is a very important subsystem in the spacecraft. It communicates with the aerospace measurement and control network and is the link between the spacecraft and the ground. [0004] The measurement and control digital transmission system mainly completes functions such as speed measurement, distance measurement, remote control command reception, telemetry data transmission, and data signal transmission. The system is generally equipped with multiple receiving and transmit...

Claims

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Application Information

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IPC IPC(8): H04B7/08H04B7/06G08C17/02
Inventor 柳丽陈之纯钱巧元
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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