RF Spectrum Signal Detection Using Baseline Power Distribution

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Solution Overview

Problem

Existing spectrum management devices are limited by their specificity to certain technologies, bulkiness, high cost, difficulty in use, and lack of real-time data analysis, making them inefficient for managing diverse wireless communications spectra.

Innovation Solution

An apparatus that learns the RF environment using statistical techniques, forming a knowledge map for real-time spectral analysis, capable of detecting low-power or buried signals by extracting temporal features, and providing near real-time data without external databases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If narrowly tailored spectral analyzers are used for specific communication standards, then measurement precision for that specific standard is improved, but adaptability to other technologies deteriorates

Engineering Contradiction:
Improvespectral measurement precisionVSAvoidadaptability to multiple technologies
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent implements a universal spectral analyzer that can detect and classify multiple communication standards (cellular, Wi-Fi, radar, TV, etc.) within a single device. The system uses a knowledge base containing templates for various signal types and employs machine learning algorithms to automatically recognize and classify signals across different frequency bands and communication protocols, eliminating the need for multiple specialized devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically adjusts detection parameters based on the identified signal type and frequency band. The machine learning classifier adapts its decision boundaries and detection thresholds according to the learned characteristics of different communication standards, enabling optimal measurement precision across diverse technologies without requiring manual reconfiguration.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If comprehensive spectrum management devices are used to handle all technologies, then adaptability is improved, but device complexity and cost increase

Engineering Contradiction:
Improvecomprehensive spectrum coverageVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts and stores only the essential detection features and classification rules for each signal type in a compressed knowledge base. Instead of implementing complete signal processing capabilities for all possible communications standards, the system stores distilled characteristics (temporal patterns, spectral signatures, modulation features) that enable rapid identification without requiring complex real-time analysis for each signal type.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system creates a virtual knowledge base that replicates the detection logic of multiple specialized analyzers in a unified structure. The machine learning model learns from training data and generates virtual templates that replicate the detection behavior of various communication standards, allowing the single device to emulate multiple specialized functions without physically implementing each one.

Inventive Principle:
Principle #26Copying

3Measurement precision

If traditional spectral analyzers are used, then measurement capability is provided, but real-time analysis capability deteriorates

Engineering Contradiction:
Improvesignal detection capabilityVSAvoidreal-time analysis speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system performs preliminary learning and template generation during an offline training phase, where the machine learning model analyzes and stores characteristic features of various signals in advance. During real-time operation, the system simply needs to match incoming signals against the pre-learned templates, dramatically reducing processing time while maintaining high measurement precision across all signal types.

Inventive Principle:
Principle #10Preliminary action

4Loss of information

If external database connectivity is required for analysis, then comprehensive data access is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvedata completenessVSAvoidease of use
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent implements a self-contained spectral analyzer with an onboard knowledge base that stores detection templates and classification rules locally. The device performs autonomous signal identification and classification without requiring external database connections or network infrastructure. The machine learning model processes signals entirely within the device, eliminating operational complexity while maintaining comprehensive analysis capabilities.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12584951B2Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within a spectrum
Publication Date: 2026.03.24 DIGITAL GLOBAL SYSTEMS INC
  • US12584951B2 patent drawing
  • US12584951B2 patent drawing
  • US12584951B2 patent drawing

AI summary

Systems, methods and apparatus for automatic alarm management in a radio-frequency (RF) environment are disclosed. An apparatus calculates a power distribution by frequency of the RF environment in real time or near real time, including a first derivative and a second derivative of FFT data of the RF environment. The apparatus then creates a baseline based on the power distribution by frequency of the RF environment in a period of time, identifies at least one alarm situation based on a multiplicity of alarm triggering conditions by comparing the power distribution in real time or near real time to the baseline of the RF environment, identifies at least one signal based on the first derivative and the second derivative of FFT data in the at least one alarm situation, and sends at least one alarm comprising details of the at least one signal identified in the at least one alarm situation.