Radar Pulse Omission for Targeted Interference Detection
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Solution Overview
Problem
Existing radar systems are vulnerable to targeted interference attacks, which can mask or introduce false targets, compromising security, and current detection methods are complex or require hardware modifications.
Innovation Solution
Implementing a method in IR-UWB radar systems that randomly omits radar pulses and maintains reception during rest periods to detect unexpected reflections, using software-based random detection intervals and biased distributions to identify malicious interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex computations or special hardware modifications are used to detect radar interference, then detection reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the detection function from complex hardware modifications and separates it into a software-based protocol layer. By taking out the detection logic from hardware and implementing it as a software protocol with random detection intervals and reflection analysis, the system achieves reliable interference detection without requiring special hardware modifications, thus resolving the contradiction between detection reliability and device complexity
Solution Approach 2:
The patent replaces complex computational methods with a simpler protocol-based approach. Instead of using complex computations for detection, the system uses a lightweight protocol that analyzes transmission-reception timing relationships and reflection patterns. This substitution of complex mechanical/computational systems with a simpler protocol-based system maintains detection reliability while reducing device complexity
2Device complexity
If real-time lightweight detection is implemented, then device complexity is reduced, but detection precision may worsen
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors reflection patterns and timing relationships, compares them against expected patterns, and adjusts detection decisions based on this feedback. The protocol uses feedback from multiple detection intervals and reflection analyses to maintain high detection precision even with lightweight implementation, resolving the contradiction between reduced complexity and maintained precision
Solution Approach 2:
The patent employs periodic detection intervals with random variations to maintain detection precision. By using periodic transmission-reception cycles with randomized detection intervals, the system achieves both lightweight operation and precise detection of interference patterns, as the periodic nature allows for efficient resource usage while randomness maintains detection 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
Enables lightweight, real-time detection of targeted interference, protecting radar system security with minimal performance impact.
Implementation Method 1
transmitting, by a transmitter of the radar system, a sequence of radar pulses
Implementation Method 2
enabling a receiver to receive reflected radar pulses from a target
Data Source
AI summary
A method is provided for detecting interference in a radar system. The method includes transmitting, by a transmitter of the radar system, a sequence of radar pulses at a regular interval with a rest period following each radar pulse of the sequence of radar pulses. The transmitter is disabled during each rest period. A receiver is enabled to receive reflected radar pulses from a target during the rest period following each radar pulse of the sequence of radar pulses. Some of the radar pulses are selected to be omitted and not transmitted. The receiver is still enabled during the rest periods following the omitted transmission pulses. Any reflected pulses received during the rest periods following the omitted transmission pulses may be an indication of a targeted interference of the radar system. In another embodiment, a radar system is provided.