Distributed simulation system for deep space communication

Abstract

The invention provides a distributed simulation system for deep space communication, and the distributed simulation system comprises a functional simulation assembly, a simulation environment generating and updating assembly and a simulation performance analysis and recording assembly. The functional simulation assembly comprises a detection planet federate member, a relay planet federate member, a speed control federate member and a ground station federate member. The simulation environment generating and updating assembly comprises a deep space environment federate member. The simulation performance analysis and recording assembly comprises a data collection federate member. The distributed simulation system for the deep space communication has the characteristics of reusability and interoperability.

Description

technical field [0001] The invention relates to a distributed simulation system oriented to deep space communication. Background technique [0002] Different from ground communication, deep space communication has the characteristics of long propagation delay, large link attenuation, asymmetric information transmission between uplink and downlink, and frequent link interruption. [0003] These characteristics determine that the ground transmission scheme is not suitable for application in the deep space communication environment, so a corresponding transmission scheme must be designed to achieve efficient and reliable deep space communication file transmission tasks. However, due to the high cost of deep space communication equipment, it is not suitable for frequent loading experiments. Therefore, it is of great significance to establish a scheme simulation experiment system that can accurately simulate file transmission in the deep space communication environment. [0004]...

AI Technical Summary

Problems solved by technology

[0008] The above three simulation systems all have insurmountable shortcomings when simulating the data communication scheme of deep space exploration:

[0009] 1. The OPNET simulation software is basically unable to realize the construction of deep space communication entities and communication features, so the simulation cannot reflect the influence of the characteristics of each star on the entire communication process; in addition, when the simulation network scale and traffic are large, the simulation efficiency will be reduced; and , the entire simulation process does not pass through the actual data flow, and there is nothing that can be done when the simulation is extended to link layer and physical layer characteristics

[0010] 2. NS simulation software has the advantage of being open source and can build a suitable simulation environment, but it is very difficult to build an environment that fully reflects deep space communication; secondly, the reusability is poor; thirdly, there is no actual data flow through, and the physical layer cannot be Simulation

[0011] 3. The main disadvantage of MATLAB is that it cannot realize port operation and real-time control, and the environment in deep space communication is an environment that may change drastically from time to time; when the amount of simulated network data is large, the efficiency is very low

[0012] To sum up, the existing simulation software cannot meet the requirements of deep space protocol simulation, and cannot realize deep space protocol simulation

Images