Implementation of Programmable FIR Filter Using Dadda Multiplier and Parallel Prefix Adder

Digital filters have a magnificent role in various applications related to signal processing. It is the performance of the filters that made DSP popular. Filtering is usually done to obtain a desired output by manipulating the input data. Various types of filters are used to manipulate the data that helped in creating different applications to benefit the world. The major part in any filter design is the multiplication block as the performance of any filter depends on how the multiplication is performed. There are various multipliers of which Dadda multiplier is one, the significance of this is that it makes use of very few gates to perform multiplication. Keeping this in view a programmable FIR filter design has been carried out and implemented using the MAC (Multiply and Accumulate) unit[8]. In this, the multiplication is done by Dadda multiplier and PPA is used to carry out addition. Therefore, this project helps in bringing an efficient FIR filter which could be used for many DSP applications [12].