Aircraft Lightning Prediction via RF Static Analysis
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Solution Overview
Problem
Current systems lack the capability to predict impending triggered lightning strikes on aircraft, which are often caused by precipitation static accumulating on the aircraft's surface, leading to unforeseen strikes.
Innovation Solution
A system utilizing existing aircraft antennas to collect and analyze radio frequency signals, determining a static signal by comparing filtered and unfiltered RF signals, and using a static analysis control module to predict imminent lightning strikes based on patterns and historical data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional antennas are installed to detect precipitation static for lightning prediction, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies universality by using existing aircraft radio antennas for their original communication function while simultaneously utilizing them for precipitation static detection and lightning prediction. The antenna system performs multiple functions: radio frequency communication and electromagnetic field sensing for lightning detection, eliminating the need for separate dedicated antennas.
Solution Approach 2:
The existing antenna infrastructure serves itself by dual-purpose utilization. The same antennas that receive radio frequency communications also detect the electromagnetic signatures of precipitation static buildup, allowing the aircraft's existing hardware to provide lightning prediction capabilities without requiring additional specialized equipment.
2Device complexity
If existing antennas are used for both communication and lightning detection, then device complexity is reduced, but signal interference may increase
Solution Approach 1:
The patent applies segmentation by separating the signal processing into distinct pathways: one for communication signals and another for lightning detection signals. The system processes radio frequency communication signals and electromagnetic field sensing signals through different computational algorithms, allowing simultaneous operation without interference while using the same physical antenna infrastructure.
Solution Approach 2:
The patent introduces an intermediary computational processing layer that mediates between the raw antenna signals and the final interpretation. The system uses signal processing algorithms to distinguish between communication signals and precipitation static electromagnetic signatures, preventing interference by computationally separating the signal types after they are captured by the shared antenna system.
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
Enables prediction of triggered lightning strikes in under 20 seconds without requiring additional antennas, reducing manufacturing and maintenance costs and mitigating the effects of lightning strikes on aircraft.
Implementation Method 1
an antenna... for collecting a radio frequency (RF) signal
Implementation Method 2
a filtered, amplified form of the RF signal collected by the antenna
Data Source
AI summary
A system for predicting a triggered lightning strike upon an aircraft, which includes an antenna for collecting an RF signal. The system includes one or more processors and a memory coupled to the processor, the memory storing data into a database and program code that, when executed by the one or more processors, causes the system to receive as input a filtered, amplified form of the RF signal collected by the antenna and a non-filtered, amplified form of the RF signal collected by the antenna. The system determines a difference between the filtered, amplified form of the RF signal and the non-filtered and amplified form of the RF signal. The difference is a static signal. The system determines the triggered lightning strike upon the aircraft based on the static signal.