The optimal minimum—mean—square—error discrete filters are obtained for finite bandwidth signals in noise represented by a rational pole— zero model in the spectral domain. An analytical technique called the method of undetermined coefficients is used to solve the Wiener equation for the optimal prediction coefficients. These coefficients are then used to examine (a) the frequency response of t...

We propose the practical solution for overcoming the tedious job of detail calculation and corresponding rigorous analysis of several system parameter values associated with the design, testing and troubleshooting of Microwave Microstrip Chebyshev Lowpass Filter (LPF) by Insertion Loss Method. The entire above spoken Microwave Lowpass filter system modeling and performance analysis are implemen...

We show how the convenience and power of term-rewriting can sometimes be obtained in logical systems which do not explicitly have this capability. We consider the Logic of Partial Functions, and show how an undeened term can often be rewritten to a deened term. Although LPF and Display Logic are unrelated, we also show how Display Logic eeectively allows rewrite-style simpliications, although t...

In this paper, we have used homomorphic system and HSV color space for shadow detection. Here, we have defined a LPF to detect the shadow over a dark object on the background. In this case, we omit the phase information in order not to emphasize the reflection component. Furthermore, the presented experimental results which are obtained for shadow identification, show the efficiency of the prop...

To encode the speech quality with reduce the redundancy within samples that resulted from domain processing method like PCM and LPC, Source coding or Waveform coding methods can be considered. However, it is well known that when conventional sampling methods are applied directly to speech signal, the required amount of data is comparable to or more than that of uniform sampling method. To overc...

The current study investigated to which extent phenol could be replaced by lignins produce lignin formaldehyde (LPF) resins, utilising soda and sodium lignosulphonate as by-products from the South African pulping industry. were characterised indicated highest reactivity. It was therefore utilised LPF resins at 60%, 80%, 100% substitution, using central composite designs maximise adhesive streng...

Background: Food borne illnesses and food poisoning are cause for concern globally. The diseases are often caused by food contamination with pathogenic bacteria due largely to poor sanitary habits or storage conditions. Objectives: Prevalence of some bacteria on cleaned and sanitised food contact surfaces from eight convenience food plants in Gauteng (South Africa) was investigated with the vie...

This article introduces a new discrete-time (DT) charge-sharing (CS) low-pass filter (LPF) that achieves high-order filtering and improves its stopband rejection while maintaining reasonable duty cycle of the main clock at 20%. It proposes two key innovations: 1) linear interpolation sampling capacitor 2) charge re-circulation history capacitors for deep rejection. Fabricated in 28-nm CMOS, pro...

The aviation industry demands thin-walled structures of high dimensional accuracy. Varying radii and individual use-cases, e.g. for repair purpose, require flexible forming techniques. Laser peen (LPF) represents such a process providing precise energy input by pulsed laser over wide range. Among adjustable parameters as intensity focus size, the spot shape, i.e. square circular, is usually fix...