This paper addresses the use of an inharmonic digital waveguide (IDWG) filter as an efficient means to synthesize hand-bell sounds. The IDWG is obtained by inserting a second-order allpass filter to the feedback path of a waveguide string model. An automated iterative procedure for estimation of the allpass filter coefficients and the length of the delay line is proposed. Limitations of the dev...

This paper reports on results from the algorithmic design and simulation of a two-path poly-phase decimation filter with 24-bit accuracy over the frequency range from dc to approximately 16kHz. The filter is suited for very high precision data conversion applications, and has been designed for use with a fourth-order  modulator running at 4096kHz. This paper also reports on the fixed-point ar...

We derive a path counting formula for two-dimensional lattice model with filter restrictions in the presence of long steps, source and target points which are situated near filters. This solves problem finding an explicit multiplicities modules tensor product decomposition T(1)⊗N Uq(sl2) divided powers, where q is root unity. Combinatorial treatment this calls definition congruence regions mode...

By formulating the feed-forward broadband active noise control problem as a state estimation problem it is possible to achieve a faster rate of convergence than the filtered reference least mean squares algorithm and possibly also a better tracking performance. A multiple input/multiple output Kalman algorithm is derived to perform this state estimation. To make the algorithm more suitable for ...

This paper proposes the design requirements and target specifications of a high-rejection radio frequency (RF) Surface Acoustic Wave (SAW) filter for an advanced digital set top box (STB) converter. The target application is in the Cable TV (CATV) domain for both retail customers and high-end cable operators. The RF frequency range of the STB is between 50-860MHz for the downstream path and 5-4...

BACKGROUND Forced-air warming (FAW) is widely used to prevent hypothermia during surgical procedures. The airflow from these blowers is often vented near the operative site and should be free of contaminants to minimize the risk of surgical site infection. Popular FAW blowers contain a 0.2-μm rated intake filter to reduce these risks. However, there is little evidence that the efficiency of the...

This paper presents a new VLSI architecture for a convolution based 1D discrete wavelet transform (DWT) which is intended for high speed signal and image processing. The proposed architecture employing several optimizations that enhance the processing time of the overall hardware design. Firstly we designed the linear phase FIR filter, with pipelined and parallel arithmetic methods, having very...

In this paper, we present a streaming XML document filter named DXAXEN which is based on incremental construction of path-trie. It runs very fast, and processes a large number of XPath queries efficiently. Experimental comparison with XMLTK, a well-known streaming XML document filter, shows that DXAXEN is 2–5 times faster and needs only 5–20 percent of memory.

This paper presents a robust receiver for uplink directsequence code-division multiple access (DS-CDMA) systems. The receiver uses low order auto-regressive models to approximate the multi-path fading channel taps, and a post correlation-based uncertain model for estimation purposes. keywords: RAKE receiver, Kalman filter, robust filter, multipath fading, multiuser detection.