Plasma Shield Anti-Jamming System
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Solution Overview
Problem
Current anti-jamming technologies are ineffective in mitigating the interference caused by jamming signals on communication systems, as they fail to efficiently block electromagnetic interference while allowing desired communication signals to pass through.
Innovation Solution
An anti-jamming system utilizing a pulsed laser source and optical control system generates a plasma shield in a defined region along the path of jamming signals, absorbing electromagnetic energy and preventing interference with communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a plasma shield is generated to block jamming signals, then the blocking effectiveness against electromagnetic interference is improved, but the complexity of the system increases due to the need for laser sources and optical control systems
Solution Approach 1:
The patent introduces plasma as an intermediary substance between the jamming signal source and the communication receiver. The plasma shield acts as a mediator that absorbs and blocks electromagnetic jamming signals while allowing desired communication signals to pass through, thereby protecting the receiver without requiring direct intervention in the signal path
Solution Approach 2:
The patent replaces traditional mechanical or electronic filtering methods with a plasma-based electromagnetic shielding approach. Instead of using complex electronic circuits or physical barriers, the system uses controlled plasma generation via laser irradiation to create a dynamic shield that adaptively blocks jamming signals
2Object-affected harmful factors
If the plasma shield density is increased to improve blocking effectiveness, then the ability to block jamming signals is enhanced, but the risk of interfering with desired communication signals increases
Solution Approach 1:
The patent applies local quality by creating a plasma shield with spatially varying density characteristics. The plasma density is optimized locally in different regions - higher density where jamming signals originate and lower density in paths where desired communication signals must pass through, allowing selective blocking based on signal origin and direction
Solution Approach 2:
The patent employs dynamic control of plasma shield properties through real-time adjustment of laser parameters. The plasma density, distribution, and duration are dynamically modulated to match the temporal and spatial characteristics of incoming jamming signals, enabling adaptive blocking that preserves legitimate communication signals
3Duration of action of stationary object
If continuous plasma generation is used to maintain shield effectiveness, then the blocking capability is sustained, but the energy consumption increases
Solution Approach 1:
The patent uses periodic or pulsed laser action instead of continuous irradiation to generate plasma shields. By applying laser energy in periodic bursts synchronized with the arrival of jamming signals, the system maintains effective shielding during critical periods while minimizing energy consumption during intervals when jamming is absent or reduced
Solution Approach 2:
The patent implements preliminary anti-action by generating plasma shields in advance or in anticipation of jamming signal arrival. The system detects potential jamming threats and pre-establishes plasma barriers in the signal path, preventing jamming effects before they can impact the communication receiver, thereby reducing the need for sustained high-energy plasma generation
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
The plasma shield effectively blocks jamming signals by being opaque to electromagnetic radiation, maintaining its density through energy absorption, and allowing communication systems to adjust parameters to minimize interference while transmitting.
Implementation Method 1
a pulsed laser source configured to emit high-power laser pulses
Implementation Method 2
The optical control system is configured to direct the laser pulses to a targeted region to generate a plasma
Implementation Method 3
The plasma shield is opaque to electromagnetic radiation
Data Source
AI summary
Jamming systems uses wireless signals (e.g., radio waves) to deliberately prevent a target from accurately receiving desired wireless signals. The examples herein disclose an anti-jamming system that mitigates an effect that jamming signals have on a radio receiver. To do so, the anti-jamming system generates a plasma shield in a region of space between the target and the jamming system. Plasma is opaque to electromagnetic energy meaning that radio signals, lasers, microwave energy, and the like are unable to pass through the plasma, and instead, are absorbed by the plasma. As such, the jamming signals emitted by the jamming system are absorbed by the plasma shield and do not interfere with the target's radio receiver.