Propagation Profile Control for Low-Detection Radar Emissions
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Solution Overview
Problem
Existing EW systems do not effectively warn pilots of their own radar signature and provide actionable strategies to minimize detection by adversarial assets, and there is a need for real-time risk assessment and mitigation of electromagnetic emissions.
Innovation Solution
An emissions control apparatus that calculates propagation and adversary detection profiles, allowing users to visualize and adjust transmission characteristics to minimize detection probability, including features like storage means, a controller, display, and decision engine to suggest or perform mitigation actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If transmitters are switched off completely to reduce detection risk, then detection probability is reduced, but transmission capability and operational effectiveness are lost
Solution Approach 1:
The system dynamically adjusts transmitter operation based on real-time propagation profiles and adversary detection profiles. Instead of static on/off states, the system continuously modulates transmission parameters (power, frequency, timing) to operate in low-probability-of-detection modes while maintaining essential communication capabilities. This resolves the contradiction by making transmission capability adaptive rather than binary.
Solution Approach 2:
The system changes multiple transmission parameters simultaneously (power level, frequency selection, pulse duration, duty cycle) to achieve low-probability-of-detection operation. By adjusting these parameters based on calculated profiles, the system maintains transmission capability while reducing detection risk, rather than simply switching transmitters off.
2Productivity
If transmitters are kept on to maintain communication, then transmission capability is maintained, but detection risk increases
Solution Approach 1:
The system employs periodic transmission patterns with varying duty cycles, switching between active and inactive states in a calculated sequence. This allows maintenance of transmission capability over time while reducing instantaneous detection probability through intermittent operation based on the propagation and detection profiles.
Solution Approach 2:
The system transmits at reduced power levels or with reduced duty cycle (partial action) rather than full power continuous transmission. This maintains sufficient communication capability for operational needs while significantly reducing the detection probability, achieving a balance between the two conflicting requirements.
3Ease of operation
If users are provided with detailed propagation profile information, then decision-making capability is improved, but system complexity and processing requirements increase
Solution Approach 1:
The system pre-calculates and stores propagation profiles and adversary detection profiles before transmission decisions are needed. This preliminary processing organizes complex environmental and adversary data into ready-to-use profiles, reducing real-time processing requirements while providing comprehensive information for decision-making.
Solution Approach 2:
The propagation profile and detection profile act as intermediary data structures that simplify the complex relationship between transmission parameters, environment, and adversary detection capability. These profiles mediate between raw data and decision-making, making the system more manageable while preserving detailed information.
Data Source
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AI summary
The present invention provides an emissions control apparatus for an entity. The emissions control apparatus comprises: storage means for storing transmission data relating to an entity; a controller configured to calculate a propagation profile for the entity based on at least the transmission data; and a display for displaying the propagation profile. The present invention also provides a method of controlling emissions.