Micro-nano satellite measurement and control digit midfrequency and baseband processing method and apparatus thereof

A baseband processing device and digital intermediate frequency technology, applied in the field of aerospace information, can solve the problems of large volume and weight of analog circuits, and achieve the effect of reducing volume

Inactive Publication Date: 2012-03-07
BEIHANG UNIV
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Problems solved by technology

Due to the large volume and weight of the analog circuit, this method is not suitable for the design and implementation of the measurement and control communication system of the micro-nano satellite

Method used

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  • Micro-nano satellite measurement and control digit midfrequency and baseband processing method and apparatus thereof
  • Micro-nano satellite measurement and control digit midfrequency and baseband processing method and apparatus thereof
  • Micro-nano satellite measurement and control digit midfrequency and baseband processing method and apparatus thereof

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. It should be noted that, in the drawings or description, similar or identical elements all use the same reference signs.

[0040] figure 1 It is a flow chart of the micro-nano satellite measurement and control digital intermediate frequency and baseband processing method provided by the embodiment of the present invention. Such as figure 1 As shown, the micro-nano satellite measurement and control digital intermediate frequency and baseband processing method provided in this embodiment can be specifically applied to micro-nano satellites. The measurement and control transponder of the micro-nano satellite receives the radio frequency signal sent by the ground, and the radio frequ...

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Abstract

The invention discloses a micro-nano satellite measurement and control digit midfrequency and baseband processing method and an apparatus thereof. The method comprises the following steps: carrying out analog-to-digital conversion, down conversion processing, phase demodulation processing to a first phase modulation (PM) intermediate frequency signal and generating a demodulation signal; extracting a binary phase shift keying (BPSK) signal from the demodulation signal, carrying out BPSK demodulation processing and generating a remote-control base-band binary code stream; carrying out BPSK demodulation processing to a received telemetry signal, generating a first modulation signal, superposing the first modulation signal and a sound ranging signal extracted from the demodulation signal, and then carrying out phase modulation processing so as to form a second modulation signal; carrying out up-conversion processing and the analog-to-digital conversion processing to the second modulation signal, generating a second PM intermediate frequency signal and sending. By using the micro-nano satellite measurement and control digit midfrequency and baseband processing method and the apparatus thereof, digital processing to the PM signal with a simulation form can be realized. A volume, weight and power consumption of the midfrequency and baseband processing apparatus can be reduced.

Description

technical field [0001] The invention relates to aerospace information technology, in particular to a micro-nano satellite measurement and control digital intermediate frequency and baseband processing method and device. Background technique [0002] Micro-nano satellites usually refer to satellites with a mass of less than 10 kilograms and practical functions. With the development of high-tech and the promotion of demand, micro-nano satellites have the advantages of small size, low power consumption, short development cycle, formation and networking, and many complex space tasks at a lower cost. It plays an important role in commercial and other fields. [0003] The measurement and control transponder is an important part of the measurement and control communication system of the micro-nano satellite. Its main task is to complete the transparent forwarding of the ranging tone signal and the uploading and downloading of the remote control and telemetry information. The unif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L25/03
Inventor 张涛张军李乔羽蒋银坪
Owner BEIHANG UNIV
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