Deep space communication network simulation verification platform construction method

Abstract

The invention discloses a deep space communication network simulation verification platform construction method which comprises the following steps: simulating communication nodes by using Raspberry Pi, connecting all the communication nodes into a network by using a switch, and controlling all the communication nodes by using a main control computer; configuring static IPs for all the communication nodes in a network bridge mode; carrying out time synchronization on all the communication nodes, integrating synchronization actions and setting the synchronization actions as startup self-starting; configuring a static ARP (Address Resolution Protocol) for each communication node, integrating configuration operations and setting the configuration operations as startup self-starting; performing deep space communication link state simulation and integrating configuration operations; communication node simulation is carried out, and protocol stack implementation and data flow transmission are carried out on the whole simulation verification platform. The method has the advantages of simple operation and high realizability, the constructed platform is low in cost, small in occupied space,easy to manage, high in applicability to different deep space communication network scenes and high in adaptability to change of the network scenes, and the verification result is close to the actualsituation.

Description

technical field [0001] The invention relates to the field of deep space communication network testing, in particular to a method for constructing a deep space communication network simulation verification platform. Background technique [0002] Due to the high cost of counterfeiting spacecraft, most of the previous space communication network experiments were carried out on the ground. There are three main types of network simulation platforms that are more common today. [0003] One is to use OPNET, NS2 and other network simulation tools to construct virtual networks and transmit virtual data to conduct simulation experiments of space communication networks. This method is simple and easy to implement, but its disadvantage is that the simulated link environment and the experimental process are both The parameters and processes are virtual, and the results are mostly theoretical values, which may deviate from the actual situation. [0004] The second way is to use a virtua...

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Problems solved by technology

[0003] One is to use OPNET, NS2 and other network simulation tools to construct virtual networks and transmit virtual data to conduct simulation experiments of space communication networks. This method is simple and easy to implement, but its disadvantage is that the simulated link environment and the experimental process are both It is a virtual parameter and process, and the results are mostly theoretical values, which may deviate from the actual situation

[0004] The second way is to use a virtual machine, each virtual machine can be used as a communication node, and the real data transmission of multiple communication nodes can be realized on the same computer, but this method requires higher performance of the computer running the virtual machine , so there should not be too many communication nodes, and only a network with fewer communication nodes and simpler scenarios can be simulated, and the communication between virtual machine communication nodes is likely to be affected by the local machine, resulting in deviations in experimental results

[0005] The third way is to use multiple PCs to build a network simulation platform. Each PC is used as a communication node to transmit real data, and a network emulator is used to simulate the real link environment. The experimental results obtained in this way are closest to the actual However, if there are many communication nodes, the cost will be higher, and it will occupy a large space and be difficult to manage

[0006] At present, there is no method for constructing a deep space communication network simulation verification platform that can overcome the shortcomings of the above three methods and combine the advantages of the above three methods

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