You can download the paper here.
Abstract—Finite impulse response filters are highly desirable in digital filter design because of their inherent stability and linear phase. However, when narrow transition band characteristics are required, they typically have a much higher filter order than their infinite impulse response counterparts with equivalent magnitude spectrums. This paper will investigate many types of finite impulse resposne filter designs, including those that attempt to reduce the filter order, and therefore, computational complexity. Actual examples and implementations will accompany most methods.