Weapon Simulator Virtual Image Registration for BLOS Target Accuracy

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Solution Overview

Problem

Existing simulation technologies fail to accurately represent targets outside the shooter's direct line of sight or beyond the range of a laser, leading to inconsistencies in the tactical situation due to system inaccuracies and communication latency, which disrupt training exercises.

Innovation Solution

A simulation method that generates a virtual image based on deviation and telemetry measurements from retroreflectors, compares this image with a captured image to determine orientation and aiming errors, and recalibrates the virtual image to correct these errors, ensuring accurate representation of real-world targets in the shooter's field of view.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a central system is used to link shooter to target via virtual reality overlay, then beyond-line-of-sight firing can be simulated, but system inaccuracies and communication latency cause positioning discrepancies between virtual and actual targets

Engineering Contradiction:
Improvebeyond-line-of-sight firing simulation capabilityVSAvoidpositioning accuracy of virtual targets
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system continuously compares the virtual image position with the captured image position of real targets and uses this feedback to calculate and correct orientation and aiming errors. This closed-loop feedback mechanism compensates for positioning discrepancies caused by system inaccuracies and communication latency, maintaining synchronization between virtual and actual target positions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces direct mechanical/optical line-of-sight requirements with an image processing and computational system. By capturing real target images and overlaying them on virtual images through digital processing, the system eliminates the need for direct visual contact between shooter and target while maintaining positioning accuracy through algorithmic correction.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If virtual reality overlay is used to represent targets, then training scenarios can be enhanced, but inconsistencies between virtual view and actual view disrupt training exercises

Engineering Contradiction:
Improvetraining scenario flexibilityVSAvoidconsistency between virtual and actual tactical situations
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system continuously compares the virtual image with the captured real-world image and uses the detected discrepancies to correct orientation and aiming errors. This feedback loop ensures that the virtual representation remains consistent with the actual tactical situation, preventing disruptions in training exercises.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts orientation reference and sighting reference parameters based on real-time comparison between virtual and captured images. By changing these reference parameters in response to detected errors, the system maintains consistency between virtual and actual views despite changing training scenarios.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If direct interaction between shooter and target is used, then firing conditions are clearly defined, but targets outside direct line of sight or beyond laser range cannot be simulated

Engineering Contradiction:
Improvefiring condition definition accuracyVSAvoidtarget engagement range
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system introduces a central control system with image capture and virtual overlay capabilities as an intermediary between shooter and target. This mediator enables engagement of targets beyond direct line of sight and laser range while maintaining precise firing condition definition through coordinated control of virtual image orientation and positioning.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances simulation accuracy by optimizing the virtual image to match the actual positions of real-world targets, reducing discrepancies and improving the realism and effectiveness of training scenarios.

Implementation Method 1

each of which is equipped with a retroreflector, the deviation and telemetry measurements being carried out by the simulator using a rangefinder generating telemetry emissions received and returned by the retroreflectors equipping the real actors

Methodology Applied
Scientific EffectRetroreflection: Retroreflector

Data Source

PatentEP4030409B1Enhanced precision simulator and simulation method, in particular a weapon system simulator, and weapon system provided with such a simulator
Publication Date: 2026.01.07 MBDA FRANCE
  • EP4030409B1 patent drawingFigure 1~3
  • EP4030409B1 patent drawingFigure 2
  • EP4030409B1 patent drawingFigure 4A~4F

AI summary

- Simulator and simulation method with enhanced accuracy, in particular a weapon system simulator, and weapon system equipped with such a simulator.- The simulator (1) includes a virtual image generation unit (I1) which is defined according to an orientation reference and a sighting reference, a so-called captured image generation unit from gap measurement and telemetry measurements relating to one or more real actors (R1 to R4) each of which is equipped with a retroreflector (10), the gap measurement and telemetry measurements being carried out using a rangefinder, a comparison unit to compare the current virtual image (I1) and the captured image so as to determine an error value representative of an orientation and/or sighting error, and a registration unit to re-register the orientation reference and/or the sighting reference in order to correct said error value so as to create an optimized virtual image which is displayed on the vision element (2) in place of the current virtual image.