Digital Low-Pass Differentiation for Biological Signal Processing

摘要: Digital low-pass differentiation is often required in processing various biological or biomechanical data. However, both the nature of signals and use micro-or minicomputers such applications imply need for simple, low-order, fast methods, rather than sophisticated high-order algorithms. Responding to this need, we investigate here first- second-order digital from theoretical practical points view, order achieve good simple In contrast with most research works previously done field, whose main aim was better accuracy even cost using quite algorithms, restrict ourselves study only low orders, being interested not achieved, but also simplicity algorithm. After discussing considerations concerning our optimum filters, present low-order filters show them be very convenient use, almost optimum.