Ground-Based Air Defence Detection To Reduce Target Detectability
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Solution Overview
Problem
Existing ground-based air defence systems are detectable by targets due to the use of active detection means like RADAR detectors, making them vulnerable to countermeasures.
Innovation Solution
Incorporating passive detection devices such as broadband radio antennas and passive RADAR devices, along with active detection devices, to reduce detectability, combined with tracking systems using electro-optical sensors and laser range finders, and soft kill systems for interference and communication disruption, and a hard kill system for active countermeasures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If active detection devices like RADAR detectors are used, then detection capability is improved, but detectability by the target worsens
Solution Approach 1:
The detection system is segmented into multiple independent detection devices including active detection devices (RADAR detectors) and passive detection devices (broadband radio antennas, passive RADAR devices). This segmentation allows the system to distribute detection functions across multiple devices, enabling simultaneous active detection capability and reduced detectability through passive devices that do not emit signals.
Solution Approach 2:
The patent merges both active and passive detection devices into a unified detection system that processes signals from multiple sources. The active detection devices provide traditional RADAR detection capability while passive devices provide stealthy signal reception, and both are integrated to track targets without requiring the target to detect the air defence system.
2Object-affected harmful factors
If passive detection devices are used, then detectability by the target is reduced, but detection capability may worsen
Solution Approach 1:
The detection system is segmented into multiple independent detection devices including active detection devices (RADAR detectors) and passive detection devices (broadband radio antennas, passive RADAR devices). This segmentation allows the system to distribute detection functions across multiple devices, enabling simultaneous active detection capability and reduced detectability through passive devices that do not emit signals.
Solution Approach 2:
The patent merges both active and passive detection devices into a unified detection system that processes signals from multiple sources. The active detection devices provide traditional RADAR detection capability while passive devices provide stealthy signal reception, and both are integrated to track targets without requiring the target to detect the air defence system.
3Measurement precision
If tracking system components are added, then tracking accuracy is improved, but system complexity worsens
Solution Approach 1:
The tracking system uses multi-functional components where electro-optical sensors serve both visual identification and tracking functions, laser range finders provide both distance measurement and targeting guidance, and the identification and tracking module integrates multiple data sources. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The tracking system merges multiple detection and measurement functions into integrated modules. The identification and tracking module combines image processing, laser ranging data, and signal processing to produce unified target identification and tracking outputs, reducing overall system complexity while maintaining high accuracy.
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
Enhances the stealth and effectiveness of air defence systems by reducing detectability and enabling effective countermeasures against targets, including jamming and spoofing, while providing accurate tracking and targeting capabilities.
Implementation Method 1
the at least one passive detection device is a broadband radio antenna configured to detect transmissions from the target
Implementation Method 2
The passive RADAR device may be a passive coherent location passive RADAR device. The passive RADAR device may be a bistatic RADAR device
Implementation Method 3
the tracking system comprises an electro-optical sensor configured to capture images of the target in response to the target being detected by the active or passive detection devices
Implementation Method 4
the tracking system comprises a laser range finder configured to send a laser ping and determine a distance to the target based on a time of return of the laser ping
Data Source
Figure 1~2
AI summary
The present disclosure relates to a ground-based air defence system comprising: a detection system configured to detect a target; a tracking system configured to identify, locate, and track the detected target; and a soft kill system configured to perform a countermeasure against the tracked target by interfering with the tracked target, wherein the detection system includes an active detection device and at least one passive detection device.