Avionics Electronic Warfare Direction Finding Simulation

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Solution Overview

Problem

Existing avionics electronic warfare systems lack effective simulation methods for direction finding performance analysis, particularly in pre-development stages, as they fail to account for actual operating environments and do not provide a comprehensive measure of performance reflecting real-world electronic warfare scenarios.

Innovation Solution

An avionics electronic warfare simulation apparatus and control method that generates virtual electromagnetic waves using threat models, simulates aircraft operations, and performs direction finding using multiple antenna configurations to analyze and optimize antenna placement based on user inputs and electromagnetic wave characteristics, providing direction finding result information including azimuth and elevation data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a simple antenna position selection method is used, then the device complexity is reduced, but the measurement precision of direction finding performance is insufficient

Engineering Contradiction:
Improvedirection finding performance measurementVSAvoidsimulation system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates a virtual copy of the electronic warfare system and aircraft in a simulation environment. Instead of testing with actual physical systems, the invention uses a digital model that replicates the electromagnetic wave generation, antenna configurations, and direction finding operations. This allows comprehensive performance measurement without the complexity of setting up real-world test ranges and actual avionics systems.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The simulation system performs preliminary testing and analysis before actual system deployment. By evaluating antenna positions and direction finding performance in the virtual environment first, the invention allows optimization of antenna configurations and system parameters before committing to physical manufacturing and field testing, thereby achieving high measurement precision without proportionally increasing physical device complexity.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If real avionics electronic warfare operation is simulated, then the reliability of performance assessment is improved, but the ease of operation becomes more difficult

Engineering Contradiction:
Improveperformance assessment reliabilityVSAvoidsimulation system operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a simulation environment as an intermediary between the user and the complex avionics electronic warfare system. This intermediate layer translates real-world electronic warfare operations into virtual equivalents that can be safely and easily manipulated. Users can assess direction finding performance with high reliability by simulating real threat scenarios, electromagnetic wave propagation, and antenna interactions without directly handling complex physical systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates virtual copies of real avionics systems, electromagnetic waves, and threat environments. These digital replicas maintain the physical and electromagnetic characteristics of real systems, enabling reliable performance assessment. The simulation preserves the complexity and behavior of actual electronic warfare operations while making the system easier to operate through virtualization and controlled simulation environments.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If multiple antenna candidates are evaluated, then the manufacturing precision of optimal antenna arrangement is improved, but the loss of time increases

Engineering Contradiction:
Improveantenna arrangement optimizationVSAvoidsimulation computation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The simulation system performs preliminary evaluation of multiple antenna configurations in the virtual environment before final manufacturing decisions. By testing various antenna positions, orientations, and combinations in silico, the invention identifies optimal arrangements that maximize direction finding performance. This preliminary virtual testing prevents the need for time-consuming iterative physical prototyping and field testing, achieving high manufacturing precision while reducing overall time loss through early optimization.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent evaluates a comprehensive set of antenna candidates beyond what would be practically testable in physical systems. By simulating an excessive number of configurations including suboptimal and edge-case arrangements, the system ensures that the final selected antenna arrangement is truly optimized. The simulation can handle computational loads that would be impractical in physical testing, evaluating many more candidates than would be feasible with real hardware, thereby achieving superior manufacturing precision.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for a quantitative and numerical assessment of direction finding performance, enabling the selection of optimal antenna arrangements and improving the accuracy of electronic support systems by simulating real-world avionics electronic warfare operations, thus enhancing the development process with a comprehensive measure of performance.

Implementation Method 1

an electromagnetic wave generator that generates a virtual electromagnetic wave by using at least one of a plurality of electronic warfare threat models

Methodology Applied
Scientific EffectElectromagnetic wave generation: Electromagnetic Induction

Implementation Method 2

a direction finding simulation unit that performs direction finding using the electromagnetic wave based on a plurality of antennas mounted on the aircraft

Methodology Applied
Scientific EffectElectromagnetic wave detection: Electromagnetic Induction

Data Source

PatentUS11676505B2Simulation system and method for direction finding measure of performance using real avionics electronic warfare operation
Publication Date: 2023.06.13 AGENCY FOR DEFENSE DEV
  • US11676505B2 patent drawing
  • US11676505B2 patent drawing
  • US11676505B2 patent drawing

AI summary

The present disclosure relates to an avionics electronic warfare simulation apparatus and a control method thereof. The avionics electronic warfare simulation apparatus includes an electromagnetic wave generator that generates a virtual electromagnetic wave by using at least one of a plurality of electronic warfare threat models, an electronic warfare engagement simulation unit that simulates an operation of an aircraft according to a preset operation scenario to engage the electromagnetic wave and the aircraft based on the operation scenario, and a direction finding simulation unit that performs direction finding using the electromagnetic wave based on a plurality of antennas mounted on the aircraft to output direction finding result information.