Digital Spectrum Analyzer Display with Accumulated Spectra
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Solution Overview
Problem
Digital spectrum analyzers struggle to effectively distinguish between narrow-band stationary signals and noise-like signals due to complex and costly image processing requirements, and fail to provide clear visibility of short-term signals and spectral changes on digital screens.
Innovation Solution
A method and device that display individual spectra simultaneously on a digital screen, using an auxiliary spectrum to enhance visibility, with spectral values represented by different colors based on their occurrence frequency, allowing for clear differentiation between signals and noise, and enabling the display of multiple auxiliary spectra to highlight temporal developments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spectra are displayed one after another on a digital display, then the display updates continuously with new measurements, but the spectra change faster than the eye can take in and lose temporal resolution
Solution Approach 1:
The patent merges multiple individual spectra into a single accumulated display image. Instead of showing spectra sequentially, it accumulates multiple spectra (e.g., 100 individual spectra) and displays them simultaneously as a composite image, where the human eye can process the entire accumulated spectrum at once rather than trying to track rapid sequential updates.
Solution Approach 2:
The patent transitions from temporal dimension (sequential display over time) to spatial dimension (simultaneous display of accumulated spectra). By accumulating multiple spectra and displaying them together in a single image frame, the system leverages the human eye's ability to process static images rather than relying on temporal resolution for perception.
2Reliability
If multiple spectra are accumulated on the screen to create analog display effect, then stationary signals become distinguishable from noise, but all spectral values have the same intensity and cannot be distinguished
Solution Approach 1:
The patent applies different visual qualities to different spectral values based on their occurrence frequency. Spectral values that occur more frequently are displayed with higher intensity or different color characteristics, while less frequent values have lower intensity. This local differentiation allows the display to simultaneously show accumulated spectra and maintain distinguishability between different spectral components.
Solution Approach 2:
The patent uses color intensity variations to represent the frequency of occurrence of spectral values. By mapping occurrence frequency to color intensity (e.g., brighter colors for more frequent occurrences), the display provides both the accumulated spectrum view and the ability to distinguish between different spectral values based on their prominence in the data.
3Reliability
If display points are connected vectorially to show narrow-band signals, then stationary signals become visible, but noise-like signals crossing the spectrum cannot be recognized
Solution Approach 1:
The patent extracts and emphasizes the most significant spectral components by accumulating multiple spectra and displaying them with intensity proportional to occurrence frequency. This extraction approach naturally highlights stationary narrow-band signals that consistently appear across multiple spectra while suppressing noise-like signals that only appear occasionally, eliminating the need for vectorial connections that would highlight all signal components equally.
4Difficulty of detecting and measuring
If complex algorithms are used to distribute color intensity between display points, then analog-like display is achieved, but hardware requirements and processing cost increase
Solution Approach 1:
The patent applies partial action by using a simplified intensity distribution approach rather than complex algorithms. Instead of implementing sophisticated decay functions and complex algorithms to distribute color intensity, the system uses a more straightforward method of accumulating spectra and displaying them with intensity proportional to occurrence frequency, achieving sufficient analog-like appearance with much simpler processing.
Data Source
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AI summary
The invention relates to a method for spectral measurement data processing, using a measuring machine (10) according to the invention, wherein a plurality of individual spectra of a signal are first measured by means of a measuring device (12) in a specific time interval. All individual spectra from the specific time interval are displayed simultaneously over the frequency on a digital screen (15), and the spectral values (1) are displayed by means of the accumulation device (21) such that they can be optically distinguished, depending on the number of occurrences thereof in the various individual spectra. An ancillary spectrum (8) is formed in an ancillary spectrum device (22) from one or more of the individual spectra, and the ancillary spectrum is displayed on the digital screen such that it can be optically distinguished from the accumulated spectra.