Rogue Drone Interception Using Coded Sky Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for intercepting rogue drones are challenging due to their small and fast-moving nature, making it difficult for interceptor UAVs to locate and engage them effectively.
Innovation Solution
A system utilizing a broad-angle electromagnetic radiation emitter to illuminate a cone of sky with coded radiation, combined with an air vehicle equipped with a detector and controller to determine the rogue drone's position based on reflected radiation, and a notch filter to disregard other light sources, allowing for quicker and more accurate interception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an interceptor UAV is used to locate and intercept a rogue drone, then interception capability is improved, but the difficulty of locating the rogue drone increases due to its small size and fast movement
Solution Approach 1:
The patent introduces a laser illuminator as an intermediary device that projects coded laser patterns onto the sky background. The rogue drone reflects these patterns, making it visible to the detector. This intermediary illumination system solves the detection difficulty by creating a high-contrast visual signature that the small, fast-moving drone would otherwise be impossible to detect against the sky background.
Solution Approach 2:
The system uses coded laser illumination that creates specific optical patterns and color signatures reflected from the drone. The detector is tuned to recognize these specific coded patterns, effectively using optical signature recognition to distinguish the drone from the background. This allows the system to detect the drone's position, velocity, and acceleration by analyzing the reflected coded light patterns.
2Measurement precision
If a broad-angle electromagnetic radiation emitter with coded radiation and notch filter is used, then detection precision is improved, but device complexity increases
Solution Approach 1:
The system pre-encodes the laser illumination with specific temporal and spatial patterns before emission. These coded patterns are designed in advance to carry information about the illumination geometry and timing. When reflected from the drone, these pre-encoded patterns allow the detector to precisely calculate the drone's position, velocity, and acceleration through decoding the reflected signal, thereby achieving high measurement precision with a relatively simple detector.
Solution Approach 2:
The laser illuminator emits coded radiation in periodic pulse sequences with specific temporal patterns. This periodic coding allows the detector to distinguish between different reflection sources and calculate the drone's motion parameters by analyzing the time-varying reflected signal. The periodic nature of the coded illumination simplifies the detection process while maintaining high precision in position determination.
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 solution reduces the burden on human operators and enables faster interception of rogue drones by providing precise location data for the air vehicle to target and neutralize the drone.
Implementation Method 1
a broad-angle electromagnetic radiation emitter for illuminating a cone of sky with coded electromagnetic radiation
Implementation Method 2
an electromagnetic radiation detector for receiving coded electromagnetic radiation reflected from a rogue drone
Implementation Method 3
the detector comprising a notch filter for selecting the coded electromagnetic radiation and for disregarding light from other sources
Implementation Method 4
a controller for determining the position of the rogue drone based on the received coded electromagnetic radiation
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure provides a system for intercepting a rogue drone, the system comprising: a broad-angle electromagnetic radiation emitter for illuminating a cone of sky with coded electromagnetic radiation; and an air vehicle. The air vehicle comprises: an electromagnetic radiation detector for receiving coded electromagnetic radiation reflected from a rogue drone operating in the cone of sky, the detector comprising a notch filter for selecting the coded electromagnetic radiation and for disregarding light from other sources; and a controller for determining the position of the rogue drone based on the received coded electromagnetic radiation. The present invention also provides an air vehicle for intercepting a rogue drone and a method of intercepting a rogue drone.