Designing IIR filter for an FPGA – Fixed Point Implementation

Data type optimization to find the optimal data types to convert floating point IIR filter model

다운로드 수: 283

업데이트 날짜: 2018/3/23

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In Simulink, you can design signal processing algorithms such as IIR filters, FIR filters etc. In this example, we show how you can take a IIR filter design in floating-point and convert it to a fixed-point model.
The data type optimization feature in Fixed Point Designer:
• Automatically iterates and chooses the smallest heterogeneous data types for your system under design while meeting behavioral constraints
• Optimizes bit width by choosing smallest data types that can meet the user specified tolerances for quantization noise
The download contains an IIR filter using floating point data type and a script that uses data type optimization to convert it to an optimal fixed-point design.
Please refer to the following documentation link to learn more about this feature:
Data type optimization:
Video demonstration:

인용 양식

MathWorks Fixed Point Team (2023). Designing IIR filter for an FPGA – Fixed Point Implementation (, MATLAB Central File Exchange. 검색됨 .

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버전 게시됨 릴리스 정보

Updated example & added video link
Added copyright notice.