Fixed-Point FIR Filter

This model illustrates fixed-point computation using the data-polymorphic FIR filter:

This model exploits the fact that the FIR filter actor is data polymorphic to feed it fixed-point numbers and fixed-point coefficients. The magnitude transfer function is calculated for three scenarios. The "exact" scenario uses double-precision floating point computations throughout. The "fixed point" scenario uses fixed-point computations, with 6 bits total, of which 2 bits are integer bits. The "quantized coefficients" scenario quantizes the coefficients to 8 bits total, of which 2 are integer bits, but then performs all calculations using double-precision floating point. See the block diagram definition.