filter coefficient quantization

Filter coefficient quantization refers to the process of approximating the precise values of filter coefficients—parameters that define a digital filter—by representing them with limited digital bits. Since digital systems have finite precision, these coefficients are rounded or truncated to fit within a set number of bits, which can introduce small errors. These quantization errors may affect the filter's performance, potentially causing slight deviations in desired filtering characteristics such as frequency response or stability. Careful design and quantization strategies help minimize these effects to ensure the filter functions effectively in practical digital applications.