Signal processing device, signal processing method, and radar device
The signal processing device addresses noise reduction in radar images by generating and optimizing pixel values based on complex number representations, effectively minimizing noise and grating lobes in radar images.
WO2026126519A1PCT designated stage Publication Date: 2026-06-18MITSUBISHI ELECTRIC CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MITSUBISHI ELECTRIC CORP
- Filing Date
- 2025-03-14
- Publication Date
- 2026-06-18
Smart Images
Figure JP2025009767_18062026_PF_FP_ABST
Abstract
This signal processing device (4) is configured to comprise: a function generation unit (12) that, where each of a plurality of pixels included in a radar image in which pixel values are represented by complex numbers is defined as a pixel of interest and pixels adjacent to the pixels of interest are defined as adjacent pixels, generates an objective function relating to the sum of the differences between the absolute values of the pixel values of the pixel of interests and the absolute values of the pixel values of the adjacent pixels; and a pixel value update unit (13) that, on the basis of the objective function generated by the function generation unit (12), updates the pixel value of each pixel included in the radar image such that the sum of the differences is reduced.
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