Radar Image Synthesis Using Beam-Width Distance Product Boundaries
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Solution Overview
Problem
Conventional radar image synthesis methods result in low visual recognition due to discontinuities at the boundaries between radar images, especially when combining images from radars with different beam widths and distances.
Innovation Solution
A radar image synthesizing device that acquires and synthesizes images from multiple radars by using the product of beam width and distance as a boundary, ensuring equal object sizes across images and displaying the synthesized image without discontinuities, thereby enhancing visual recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If radar images from multiple radars with different beam widths and distances are synthesized using conventional methods, then the field of view coverage is improved, but the visual recognition is degraded due to discontinuities at boundaries
Solution Approach 1:
The patent changes the boundary determination parameter from simple geometric division to a parameter based on the product of beam width and distance (θ×R). This parameter change ensures that boundaries are set where the radar detection capability is equivalent, maintaining consistent object sizes across different radar images and eliminating visual discontinuities while preserving extended field of view coverage
Solution Approach 2:
The patent applies equipotentiality by setting boundaries where the product of beam width and distance is equal for different radars (θ1×R1 = θ2×R2). This creates an equipotential boundary where the radar detection capability is equivalent, ensuring that objects at the boundary appear with consistent size and intensity across different radar images, thereby maintaining visual recognition quality while expanding coverage
2Device complexity
If radar images are synthesized without considering beam width and distance relationships, then the synthesis process is simplified, but discontinuities appear at boundaries reducing image quality
Solution Approach 1:
The patent introduces a specific parameter (product of beam width and distance) that directly controls boundary placement. This parameter change provides a clear, calculable criterion for boundary determination that balances synthesis complexity with image quality, avoiding both oversimplification and excessive complexity
Solution Approach 2:
The patent performs preliminary calculation of the product of beam width and distance for each radar before synthesis. This preliminary action establishes the boundary positions in advance based on radar characteristics, ensuring that the subsequent synthesis process can proceed efficiently while maintaining precise boundary continuity
Data Source
AI summary
A radar image synthesizing device capable of displaying a synthesized image with higher visual recognition based on a plurality of radar images is provided. The radar image synthesizing device includes processing circuitry. The processing circuitry acquires a plurality of radar images based on a measuring result of each of a plurality of radars disposed at different locations. The processing circuitry generates a synthesized image in which the plurality of radar images are synthesized, while using a position at which a product of a beam width of the radar and a distance from the radar becomes equal in a set of at least any two radars, as a boundary between the radar images. The processing circuitry displays the synthesized image.