tion which provides performances comparable to that We show now that a near—perfect replica R(n) of of conventional QMF filter banks, but with a compu— x(n), with s—transform I(s) may be reconstructed tational complexity which is significantly lower from the N channel signals. This is done by insar— than with QNF banks or earlier pseudo-QMF banks. ting N-l zero-valued aamples between auccassiva...

As an efficient method for ammonium (NH4+) removal, contact catalytic oxidation technology has drawn much attention recently, due to its good low temperature resistance and short start-up period. Two identical filters were employed to compare the process for ammonium removal during the start-up period for ammonium removal in groundwater (Filter-N) and surface water (Filter-S) treatment. Two typ...

In this work, the approach of the distributed transversal filter for Optical CDMA systems is addressed. It demonstrates that pulse generation and correlation functions can be accomplished in the electrical domain for multi-Gbit/s systems. The practicalities of the approach were assessed using a state of the art GaAs MMIC process. A innovate transversal filter, which is termed the dual drain-lin...

An oscillatory S-curve causes unexpected fluctuations in a unit hydrograph (UH) of desired duration or an instantaneous UH (IUH) that may affect the constraints for hydrologic stability. On other hand, Savitzky–Golay smoothing and differentiation filter (SG filter) is digital known to smooth data without distorting signal tendency. The present study proposes method based on SG cope with S-curve...

Abstract—Frequency transformation with Pascal matrix equations is a method for transforming an electronic filter (analogue or digital) into another filter. The technique is based on frequency transformation in the s-domain, bilinear z-transform with pre-warping frequency, inverse bilinear transformation and a very useful application of the Pascal’s triangle that simplifies computing and enables...

An optimization-based methodology for designing robust high frequency Gm-C filters is presented. In the first step of the design, the topology for high-frequency Gm-C filter is obtained directly from an active RC prototype, using the a transformation method proposed in [1]. where a transformation method for designing Gm-C filters from known RC filters while grounding floating capacitors is prop...

A novel microwave transversal-filter for Fibre-Optic CDMA (FO-CDMA) is described. The proposed distributed transversal-filter permits the development of receivers for high-speed networks. The transversal filter is aimed to receive efficiently spread signals at speeds of tens of Gchip/s. In order to demonstrate the concept a transversal filter was designed to operate at 10 Gchip/s and programmed...