Radar Data Synthesis Matrix for Weather Resolution

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Solution Overview

Problem

Current weather radar systems face limitations in data resolution, particularly when displaying smaller weather areas, as they rely on averaging samples and fixed signal processing techniques, which restrict their ability to accurately represent and magnify weather data.

Innovation Solution

A system comprising a digital signal processor, data synthesizer, and convolution filter that generates and filters an M×N matrix for digitized reflectivity data, allowing for customizable range and angular resolution, thereby enhancing data representation and display capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If sample averaging is used to process radar data, then processing complexity is reduced, but data resolution and representation accuracy deteriorate

Engineering Contradiction:
Improveprocessing complexityVSAvoiddata resolution
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent divides the processing into two distinct stages: first, simple averaging of raw samples to reduce complexity; second, application of convolution filters with various kernel functions (boxcar, triangular, Gaussian) to enhance resolution. This segmentation allows each stage to optimize for its specific purpose without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary averaging to reduce data complexity before applying more computationally intensive convolution operations. By pre-processing the data to reduce noise and variability, the subsequent resolution-enhancing operations become more effective and efficient.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If fixed signal processing techniques are used, then system simplicity is maintained, but adaptability to different display capabilities deteriorates

Engineering Contradiction:
Improvesystem simplicityVSAvoidadaptability to display capabilities
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic processing where the convolution filter parameters (kernel size, shape, and type) can be adjusted based on display capabilities and user preferences. The system transitions from fixed processing to adaptive processing, allowing the same radar system to optimize its output for different display resolutions and formats.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes processing parameters (filter kernel size, shape, and type) to adapt to different display capabilities. By modifying these parameters, the system maintains simplicity in the basic processing architecture while gaining versatility in adapting to various display requirements.

Inventive Principle:
Principle #35Parameter changes

3Illumination intensity

If data is magnified for better representation of smaller weather areas, then display capability is improved, but representation accuracy deteriorates due to pixelation and loss of detail

Engineering Contradiction:
Improvedisplay capabilityVSAvoidrepresentation accuracy
Core Design Contradiction:
Illumination intensityVSMeasurement precision

Solution Approach 1:

The patent creates multiple interpolated data points between original radar samples using convolution filtering. This copying process generates additional data points that represent the weather patterns between measured locations, allowing magnification without the pixelation effects that would occur with simple scaling.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent effectively adds a dimension of detail by generating intermediate data points between original samples. This creates a more continuous representation of weather patterns that maintains accuracy even when magnified for display, transforming the discrete sample data into a more continuous field representation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS7405693B2System and method for synthesizing data in a radar system
Publication Date: 2008.07.29 ENTERPRISE ELECTRONICS CORP
  • US7405693B2 patent drawing
  • US7405693B2 patent drawing
  • US7405693B2 patent drawing

AI summary

A system for synthesizing data received from a weather radar system includes a digital signal processor, a data synthesizer, a convolution filter, and data storage. The digital signal processor digitizes reflectivity data from a radar antenna. The data synthesizer generates an M×N matrix for a digitized reflectivity data point and populates each element in the M×N matrix with the value of the digitized reflectivity data point. The convolution filter calculates a filtered value for each element in the M×N matrix. The data storage stores the M×N matrix for display.