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Zynq-based inter-satellite link test system

A test system and inter-satellite link technology, applied in the field of satellite testing, can solve problems such as low test efficiency and complex structure, and achieve the effects of improving test efficiency, reducing cost and space occupation, and simplifying structure

Inactive Publication Date: 2017-09-22
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency that above-mentioned existing technology exists, has proposed a kind of satellite inter-satellite link test system based on Zynq, is used to solve the complex structure and low test efficiency that existing satellite inter-satellite link test system exists technical problem

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] refer to figure 1 , a satellite inter-satellite link test system based on Zynq-7000, including a host computer and a system hardware platform connected through a gigabit network, wherein:

[0024]Described upper computer, adopts Windows operating system, comprises data generation module, function configuration module and link analysis module; Described data generation module is used for generating the baseband data of different formats and different coding modes required for testing, for according to The data format of the link to be tested generates CCSDS frame format data with any configuration in the frame. According to the encoding characteristics of the link to be tested, it can perform arbitrary encoding methods such as LDPC code, RS code, CRC check code, convolutional code and scrambling code. Combination; the function configuration mod...

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Abstract

The invention provides a Zynq-based inter-satellite link test system, which are used for solving the technical problems of complex structure and low test efficiency in the prior art. The system comprises an upper computer and a system hardware platform, which are connected through an Ethernet. The upper computer comprises a data generation module, a function configuration module and a link analysis module. The system hardware platform comprises a network module, a Zynq chip, a memory module, an intermediate frequency modulation module, a baseband acquisition module and a power supply module. The Zynq chip comprises an on-chip processing system and a function logic module. The upper computer controls carrier frequency, output power and code rate of an intermediate frequency signal output by the system hardware platform, and baseband data required by a link to be tested is generated; the baseband data is downloaded through a network to the system hardware platform for QPSK modulation, and the data is sent to the link to be tested; and meanwhile, return data of a plurality of links collected by the system hardware platform is received for real-time error code analysis and data disk storage to finish link test.

Description

technical field [0001] The invention belongs to the technical field of satellite testing, and relates to a satellite inter-satellite link test system, in particular to a Zynq-based satellite inter-satellite link test system, which can be used for testing the bit error rate of satellite inter-satellite link data. technical background [0002] In a satellite communication system, a transmission link includes a transmitting earth station, an uplink, a satellite transponder, a downlink, and a receiving earth station. According to the spatial distribution, it can be divided into satellite-ground link and inter-satellite link. An intersatellite link refers to a link used for communication between satellites, also known as an interstellar link or a cross link. The introduction of the inter-satellite link makes the low-orbit satellite mobile communication system less dependent on the ground network, so that the low-orbit satellite mobile communication system can be more flexible an...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L1/20
CPCH04L1/203H04B7/18519
Inventor 王海魏小淞张敏刘岩秦红波赵伟
Owner XIDIAN UNIV
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