Data transmission test method based on time division multiple access spatial dynamic network

A technology of space dynamic network and time division multiple access, which is applied in transmission system, radio transmission system, communication channel monitoring, etc., and can solve problems such as data transmission test of space dynamic network without time division multiple access

Active Publication Date: 2015-08-26
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since TDMA SDN is an innovative network, there is currently no method in the literature for testing data transmission based on TDMA SDN

Method used

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  • Data transmission test method based on time division multiple access spatial dynamic network
  • Data transmission test method based on time division multiple access spatial dynamic network
  • Data transmission test method based on time division multiple access spatial dynamic network

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Embodiment Construction

[0113] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0114] figure 1 is a schematic diagram of the test environment constructed in the first step of the present invention;

[0115] Participating in the data transmission test of the space dynamic network based on time division multiple access includes the satellite to be tested and the hardware-in-the-loop test device for network data. The tested satellite and the virtual satellite simulated by the network data half-physical test device together constitute a TDMA space dynamic network, and each satellite participating in the test, including the tested satellite and the virtual satellite, constitutes a TDMA space dynamic network. A node of the network, the virtual satellite is called the virtual satellite node, and the tested satellite is called the tested satellite node. The data transmission functions of these two nodes in the time divisio...

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Abstract

The invention discloses a data transmission test method based on a time division multiple access spatial dynamic network. The technical proposal of the invention is characterized by establishing a test environment which is composed of a network data semi-object test device and a measured satellite, performing test configuration and task planning to a test scene with the network data semi-object test device to judge whether the measured satellite is in orbit, calculating orbital data of a virtually directive star if the measured satellite is in orbit, otherwise, directly generating testing data, and distributing the data to each software of the network data semi-object test device; determining a goal node connected with each time slot with chain establishing directive software of the measured satellite, and calculating a link directivity; finally evaluating testing performance of the data transmission of the measured satellite. The test method of the invention can be used for finishing network protocol testing of the time division multiple access spatial dynamic network at ground test stage and satellite on-orbit stage on one set of hardware equipment under the premise that the satellite does not need to change self state.

Description

technical field [0001] The invention mainly relates to a data transmission testing method based on time division multiple access space dynamic network. This method takes advantage of the characteristics of time-division multiple access to space dynamic networks, adopts a set of hardware equipment, realizes the network protocol stack processing of satellite nodes in the whole constellation, and provides a network data transmission for satellites in the development stage or in-orbit unnetworked stage Protocol test methods. Background technique [0002] Network data transmission between satellites is a new direction in the development of satellite technology, and time-division multiple access space dynamic network is an abstract model of the existing network between satellites. The characteristics of time division multiple access space dynamic network are: network nodes are not always connected, but connected and disconnected regularly; data transmission is half-duplex, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/30H04B7/185
Inventor 冯旭哲杨俊周永彬陈建云黄文德胡梅
Owner NAT UNIV OF DEFENSE TECH
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