RF Signal Lookup Tables for Automated ESM Emitter Libraries
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Solution Overview
Problem
The creation and maintenance of ESM emitter libraries in Electronic Warfare is highly manual and knowledge-intensive, requiring individual adaptation for each ESM System due to differing signal processing capabilities.
Innovation Solution
A method for determining a signal lookup table (LUT) by receiving RF input signals, generating output data items, and storing input signal characteristics and corresponding output data as entries, which can be combined based on similarity criteria, eliminating the need for manual translation and adapting to specific signal processing devices and scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual translation of signal description to ESM System specific library entry is performed, then the ESM emitter library can be created for each system, but the process becomes highly manual and knowledge intensive
Solution Approach 1:
The patent creates a master signal description that can be copied and automatically translated into ESM system specific library entries. Instead of manually creating each library entry from scratch, the system generates copies of the master description and automatically adapts them to different ESM system formats, eliminating manual translation while maintaining accuracy across multiple systems
Solution Approach 2:
The system performs automatic translation of signal descriptions to ESM system specific library entries without requiring manual intervention. The translation process is self-executing, using algorithms to convert the master signal description into format-specific entries for different ESM systems, thereby eliminating the need for knowledge-intensive manual work
2Measurement precision
If individual adaptation of emitter library is performed for each ESM System, then system-specific accuracy is improved, but the maintenance effort increases significantly
Solution Approach 1:
The patent creates a universal master signal description that serves multiple ESM systems simultaneously. This single master description can be automatically translated into library entries for different ESM systems, allowing one library to serve multiple functions and systems. When updates are needed, the change is made once in the master description and automatically propagated to all system-specific libraries, eliminating repetitive maintenance work
Solution Approach 2:
The patent merges the maintenance of multiple system-specific libraries into a single centralized process. By combining the master signal description with automatic translation capabilities, the system maintains all ESM system libraries through one unified update process rather than requiring separate maintenance for each system, significantly reducing time loss
3Measurement precision
If comprehensive RF input signals are included in LUT, then accuracy of emitter detection is improved, but the size and processing time of LUT increases
Solution Approach 1:
The patent segments the comprehensive LUT into hierarchical groups based on signal characteristics. Instead of storing all possible RF input signals as individual entries, the system organizes them into categories and groups, allowing the LUT to cover comprehensive signal types while reducing the total number of individual entries through structured organization
Solution Approach 2:
The patent uses parameter-based generalization to reduce LUT size. By identifying common parameter patterns across multiple signals and creating generalized representations, the system maintains comprehensive coverage of RF input signals while storing fewer unique entries. The LUT stores parameter ranges and relationships rather than every possible signal configuration
Data Source
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AI summary
A method of determining a signal lookup table for RF signals, the method comprising: receiving, by a sensor included in a signal processing device, a plurality of predetermined radio frequency (RF) input signals generable by one or more RF emitters; receiving, from the signal processing device, output data items indicative of the output signals generated by the signal processing device in response to detecting the input signals; and for each input signal, storing one or more input signal characteristics related to the input signal and an output data item corresponding to the input signal as an entry in a lookup table (LUT).