How to optimally normalize filter coefficients?

1. How do you normalize FIR filter coefficients?
2. How do you normalize a filter in Matlab?
3. What are the coefficients of a filter?

How do you normalize FIR filter coefficients?

The coefficients are then normalized by dividing by the sum of the coefficients themselves. This is done in order to have a DC gain equal to 1 (0 dB). At this point the FIR filter is a low pass filter. By negating every other coefficient, the FIR filter becomes a high pass filter.

How do you normalize a filter in Matlab?

g = normalize(hd) normalizes the numerator coefficients for the filter hq to between -1 and 1 and returns the gain g due to the normalization operation. Calling normalize again does not change the coefficients. g always returns the gain returned by the first call to normalize the filter.

What are the coefficients of a filter?

Filter coefficients are represented by a finite number of bits, commonly in the range of 8 to 16 bits. This results in the implementation of a filter that differs slightly from the original design.