System and method for acquiring and distributing baseband data of remote sensing satellite

A technology for baseband data and data acquisition, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve the problem of inability to provide safe and effective real-time remote sensing satellite baseband data distribution services with multiple processing equipment, and data acquisition equipment layout constraints And other issues

CN102832988BActive Publication Date: 2015-06-17CENT FOR EARTH OBSERVATION & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-17

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Abstract

The invention provides a system for acquiring and distributing baseband data of a remote sensing satellite. The system comprises a task management device, a data acquiring device, a data storage device and a data distributing device. When detecting a data acquisition task list, the data acquiring device acquires baseband data of the remote sensing satellite and corresponding time code information thereof from the remote sensing satellite by a fully digital demodulator via the network. The data distributing device distributes the required baseband data of the remote sensing satellite to user equipment after receiving data distribution requests of the user equipment. By the aid of the system, the baseband data of the remote sensing satellite can be acquired in real time via the network, and meanwhile, uniform data distributing services can be provided to rear-end equipment via the network, and accordingly, limits of ECL (emitter-coupled logic) signal transmission distance and special acquisition cards are eliminated.
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Description

technical field

[0001] The invention relates to the field of remote sensing satellite baseband data collection and distribution, and more specifically, to a remote sensing satellite baseband data collection and distribution system and method. Background technique

[0002] The receiving and recording of remote sensing satellite data is the first link in the process of remote sensing satellite data acquisition and processing. Remote sensing satellite digital baseband signals usually include data signals and clock signals. Traditionally, the input method of remote sensing satellite digital baseband signal acquisition is ECL signal. After the ECL signal enters the recording device, a dedicated data acquisition board is used to complete the serial-to-parallel conversion of the ECL signal, and then write the baseband data signal through the PCI bus. Into the data storage device (for example, memory), thereby generating the binary remote sensing satellite raw data required by the ...

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Embodiment Construction

[0038] Various aspects of the disclosure are described below. It should be appreciated that the teachings herein can be embodied in a wide variety of forms and that any specific structure, function, or both disclosed herein are merely representative. Based on the teachings herein one skilled in the art should appreciate that an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented or a method practiced using any number of the aspects set forth herein. In addition, such an apparatus may be implemented or such a method may be practiced with other structure, functionality, or structure and functionality in addition to or in addition to one or more of the aspects set forth herein. Additionally, any aspect described herein may comprise at least one element of a claim.

[0039] Embodiments according to the present invention will be described b...