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A qualnet-oriented simulation scene node information timing modification method

A technology for simulating scene and node information, applied in the field of network simulation, it can solve the problems of inability to realize dynamic modification, batch timing modification, etc., and achieve a more scalable effect

Inactive Publication Date: 2019-01-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] And a kind of Qualnet-oriented simulation scene node information regular modification method that the present invention proposes, design programmable dynamic control interface (Programmable dynamic-simulationInterface, be called for short " PDSI ") for QualNet emulator, and establish between external program and QualNet emulator The PDSI simulation framework among them overcomes the defects in the above-mentioned literature that dynamic modification and batch timing modification cannot be realized.

Method used

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  • A qualnet-oriented simulation scene node information timing modification method
  • A qualnet-oriented simulation scene node information timing modification method
  • A qualnet-oriented simulation scene node information timing modification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] After the simulation initialization, modify the parameter information of node 12 and node 1 on the external program according to Table 1 and Table 2, respectively, and send them to QualNet. Then the simulation starts, Table 1 changes the radar working parameters of node 12 by the external program; Table 2 changes the Link16 working parameters of node 1 by the external program.

[0056] Table 1 Radar operating parameters

[0057] parameter name

parameter value

scan cycle

1000ms

transmit power

1000w

antenna gain

15dB

Pulse wavelength

10m

System loss

1dB

Noise Figure

1dB

receiver bandwidth

1MHz

anti-jamming factor

30dB

beam width

10

Minimum Recognizable Signal-to-Noise Ratio

5

time

20s

[0058] Table 2 Link16 communication parameters

[0059]

[0060]

[0061] The simulation results show that the working parameters of node 1 and node ...

Embodiment 2

[0074] After the simulation initialization, modify the simulation node parameter information in the external program according to Table 3, and send it to QualNet. Then the simulation starts, and Table 3 changes the network parameters of node 2 for the external program.

[0075] Table 3 Change dynamics of configuration parameters of node 2

[0076] time

Node 2 configuration parameters change dynamically on external programs

0

simulation start

T1

node 2 down

T2

Node 2 Y-coordinate axis changes from 900 to 600

900

simulation end

[0077] At the beginning of the simulation, configure the parameters of node 2 in the simulation scene according to Table 1. The simulation results show that node 2 is closed at T1, the communication between nodes 1-5 is disconnected, and the external program receives the parameter modification success message. At T2, node 2 The coordinates of the corresponding changes, and the external program r...

Embodiment 3

[0083] After the simulation initialization, modify the simulation node parameter information in the external program according to Table 4 and send it to QualNet. Then the simulation starts, and Table 4 changes the network parameters of different nodes at different simulation times for the external program.

[0084] Table 4 External program changes the network parameters of different nodes at different simulation times

[0085]

[0086] Modify the parameters according to Table 4. At the beginning of the simulation, nodes 1-5 are connected to each other. When the simulation progresses to T1, it is found that the communication between nodes 1-5 is disconnected, and the communication between nodes 1-5 is restored until T2; to be simulated When the time goes to T3, it is found that the coordinates of nodes 1, 2, and 3 have changed accordingly, and until T4, the coordinates of nodes 1, 2, and 3 have returned to their original positions. At the simulation time of T1, T2, T3, and ...

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Abstract

The invention relates to a method oriented to QualNet for correcting simulated scene node information regularly. The method comprises two parts including PDSI interface registration and PDSI interface function calling. Specifically, the method oriented to QualNet comprises establishing an external interface development framework of a PSDI interface and an external program, node information parameters required to be modified is sent to a PDSI interface in the format of data messages via the external program and then interacts with a QualNet simulator via the PDSI interface. A user may correct the node information parameters in the simulation environment dynamically and regularly in batches so as to intervene in the simulation process regularly. The method solves a problem that node parameters cannot be configured in a large-scale network simulation process dynamically and regularly in batches. An actually-measured result manifests that the method is very effective in large-scale network simulation evaluation and testing.

Description

technical field [0001] The invention relates to a method for dynamic, batch and timing modification of scene node information in a QualNet-oriented network simulation process, in particular to a method for timing modification of QualNet-oriented simulation scene node information, which belongs to the technical field of network simulation. Background technique [0002] In the research of network, physical experiment method and software simulation method are widely used. In the physical experiment method, the experimental object is run on a real physical platform, which has high accuracy; but it is expensive to build a full-scale physical experiment platform, and it is very difficult to conduct a large number of repeated experiments. The software simulation method has better flexibility and controllability, but because most of the simulation and result analysis are repeatedly run in a typical virtual environment of a closed non-timing analog clock, the "human in the loop" is i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/0813H04L41/145
Inventor 龚鹏黄鹏吴海乔钟俊强栗苹
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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