ADAPTIVE FILTER DEVICE, ADAPTIVE FILTER METHOD, AND ADAPTIVE FILTER PROGRAM
By introducing an adjustable sample reduction filter and a filter control unit into the adaptive filter, the order of the filter is adjusted according to the characteristics of the input signal, and the problem that the FIR filter structure in the prior art is difficult to adapt to signal processing of different complexities, achieving efficient signal processing and real-time performance improvement.
JP7653525B2Active Publication Date: 2025-03-28ASAHI KASEI MICRODEVICES CORP
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Patent Information
- Application Number
- JP2023545131
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-09-06
- Filing Date
- 2022-07-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2042-07-11
AI Technical Summary
Technical Problem
It is difficult for the prior art to effectively adjust the structure of the Finite Impulse Response (FIR) filter to accommodate signal processing needs of different complexities, especially when the frequency components of the signal change.
Method used
By introducing an adjustable sample reduction rate filter into the adaptive filter, the filter control unit adjusts the order of the filter according to the characteristics of the input signal, thereby dynamically adjusting the characteristics of the filter.
Benefits of technology
It realizes efficient signal processing under different signal complexity and frequency components, reduces the delay time and filter order, and improves the real-time performance and noise suppression ability of the system.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is an adaptive filter device comprising a decimation filter that outputs an output signal obtained by down-sampling an input signal, and a filter control unit that adjusts the order of the decimation filter on the basis of a characteristic of the input signal.
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