Quantize

How to find the minimum no of bits required to express the filter coefficients in fixed point format from Histogram plot?

How to find the minimum no of bits required to express the filter coefficients in fixed point format from Histogram plot?
  1. What is fixed point filter?
  2. How do you quantize filter coefficients in Matlab?

What is fixed point filter?

Fixed-point filters are commonly used in digital signal processors where data storage and power consumption are key limiting factors. With the constraints you specify, DSP System Toolbox™ software allows you to design efficient fixed-point filters. The filter for this example is a lowpass equiripple FIR filter.

How do you quantize filter coefficients in Matlab?

After having scaled the coefficients of each SOS, you quantize them by simply rounding them to the closest number on an equidistant grid consisting of 2N numbers, where N is the number of bits.

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