Non-linear Frequency Axis Display for Spectrum Analyzer Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current spectrum analyzers are overly complex and unsuitable for common commercial tasks, with graphical displays that make data review cumbersome due to their linear frequency axis, which does not effectively highlight densely populated frequency spectrum areas.
Innovation Solution
Implementing a non-linear frequency axis graphical display that graphically expands frequency ranges with high RF energy concentrations and condenses those with lower concentrations, allowing for a more visible representation of densely populated areas while maintaining accurate power spectral density analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a linear frequency axis is used in the graphical display, then the entire frequency spectrum can be displayed uniformly, but densely populated frequency areas are not sufficiently highlighted and data review becomes cumbersome
Solution Approach 1:
The patent applies local quality by making different parts of the frequency axis have different display densities. Frequency ranges with high signal concentration are displayed with greater detail and spacing, while frequency ranges with low signal concentration are compressed. This allows the display to adapt locally to the signal distribution, highlighting important areas without losing the ability to view the entire spectrum.
Solution Approach 2:
The patent implements a dynamic frequency axis where the display scaling automatically adjusts based on the detected signal distribution. The system continuously analyzes the frequency spectrum and dynamically modifies the graphical representation to expand regions with significant signals and compress regions with minimal activity, making the display adaptive rather than static.
2Loss of information
If the frequency axis is expanded to show more detail in signal-rich areas, then visibility of densely populated areas is improved, but the normal linear frequency spectrum display is distorted
Solution Approach 1:
The patent introduces an intermediary computational layer that processes the raw frequency spectrum data before graphical display. This intermediary system calculates signal concentration metrics and uses them to drive the non-linear scaling of the frequency axis, acting as a mediator between the raw data and the visual representation to preserve accuracy while enhancing visibility.
Solution Approach 2:
The patent changes the display parameter of frequency axis scaling from a fixed linear relationship to a variable non-linear relationship based on signal concentration. By dynamically adjusting the scaling parameter according to detected signal distribution, the system enhances visibility of important regions while maintaining faithful representation of the underlying spectral data through appropriate normalization and calibration.
Data Source
AI summary
A graphical display for displaying spectrum analyzer data that represents detected signal levels for frequencies in an identified frequency span includes a signal level axis that represents a range of detected RF signal levels for the spectrum analyzer data and a frequency axis that represents an identified frequency spectrum span for the spectrum analyzer data. Frequency ranges in the identified frequency span having a high concentration of detected RF energy are automatically graphically expanded and displayed on the frequency axis of the graphical display while frequency ranges having a lower concentration of detected RF energy are simultaneously, automatically graphically condensed and displayed on the first frequency axis of the graphical display.