Cavity Axis Orientation Measurement via Signal Analysis
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Solution Overview
Problem
There is a need for effective pre-engagement detection of snipers to determine the orientation of a weapon's longitudinal axis and intended target before firing, as a single shot can be sufficient to neutralize the threat, and existing technologies lack the capability to measure this orientation for direct or indirect fire weapons.
Innovation Solution
A device that measures the orientation of a cavity's longitudinal axis by analyzing the frequency-dependent modulation of electromagnetic signals interacting with the weapon, using a power spectral density (PSD) and local maxima analysis to determine the aiming point and intended target, employing a block diagram configuration with a signal receiver, processor, and analyzer to compute cavity axis orientation statistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electromagnetic signal analysis is used to measure cavity axis orientation, then measurement capability is provided, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical measurement systems with electromagnetic signal analysis. The device uses electromagnetic signals to probe the cavity and extract orientation information through signal processing (power spectral density analysis), eliminating the need for mechanical contact or complex optical alignment systems.
Solution Approach 2:
The patent changes the measurement parameter from direct physical measurement to electromagnetic signal characteristics. By analyzing how the cavity modifies electromagnetic signals (frequency-dependent modulation, power spectral density), the system derives orientation information without direct mechanical or optical measurement of the cavity itself.
2Reliability
If pre-engagement detection is implemented, then threat neutralization capability is improved, but time for detection and response is extended
Solution Approach 1:
The system performs preliminary detection of the sniper's orientation and intent before engagement occurs. By continuously monitoring electromagnetic signals from the weapon cavity, the system determines aiming direction and threat level in advance, allowing proactive response rather than reactive measurement after firing.
Solution Approach 2:
The patent implements continuous feedback monitoring of electromagnetic signals from the weapon cavity. The system processes signals in real-time to update orientation estimates and threat assessment, providing ongoing information about the sniper's status and intent rather than a single static measurement.
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 proactive detection of a sniper's aiming point, allowing potential victims to anticipate and potentially neutralize the threat by determining the intended target before the sniper fires, applicable not only to sniper rifles but also other barreled weapons and objects with cavities.
Implementation Method 1
measures the orientation of a cavity longitudinal axis by analyzing frequency dependent modulation of signals interacting with the cavity
Data Source
AI summary
An apparatus for measuring the orientation of the longitudinal axis of a cavity comprising a signal receiver, a signal processor and analyzer and a cavity axis orientation analyzer. The signal receiver receives a reflected signal resulting from an interaction of multi-frequency irradiating signal(s) with at least one cavity. The irradiating signal may include an electromagnetic or acoustic signal above a cavity dependent cutoff frequency with a randomized or deterministic spectral component. The signal analyzer computes a power spectral density of the reflected signal. The local maxima of the power spectral density are identified and used to determine the cavity longitudinal axis orientation. The cavity may be the bore of a weapon.