ABSTRACT
This chapter gives a straightforward method for designing and implementing multiplier-less LWDF-based notch/peak filters. This work is separated into two halves. In the first section, all-pass filters are used to create the first, second and multiple order notch/peak filters. In the many signal-processing applications, retaining or deleting a certain frequency component from a signal while preserving the narrow or wide signal is a typical objective. This is a common use for the peak and notch filters, which also have various uses in the fields including telecommunication, automation, medical technology and speech processing. All-pass filters are replaced by adaptors, which are a chained realization of the second and first-order all-pass sections. When it comes to the number of multipliers that are necessary for a certain filter order, the use of adaptors results in an implementation that is both effective and efficient.
