Least mean square (LMS) type adaptive algorithms have attracted much attention due to their low computational complexity. In the scenarios of sparse channel estimation, zero-attracting LMS (ZA-LMS), reweighted ZA-LMS (RZA-LMS) and reweighted -norm LMS (RL1-LMS) have been proposed to exploit channel sparsity. However, these proposed algorithms may hard to make tradeoff between convergence speed ...

In this paper, an efficient blind equalization with two-stage single/multilevel modulus and decision directed (DD) least mean square (LMS)-like algorithm is proposed for high-order QAM (64/256/1024QAM) cable modem systems. In wire-lined cable systems, it seems that the cable channel may display a nearly invariant multi-path effect over a considerable time, and then the blind equalizer can have ...

Purpose. To preliminarily evaluate the feasibility and accuracy of using rapid prototyping drill templates (RPDTs) for C1 lateral mass screw (C1-LMS) and C2 pedicle screw (C2-PS) placement. Methods. 23 formalin-fixed craniocervical cadaver specimens were randomly divided into two groups. In the conventional method group, intraoperative fluoroscopy was used to assist the screw placement. In the ...

(La0.5,Sr0.5)CoO3 (LSCO) ®lms were prepared by a sol-gel method on silica grown by various methods such as thermal oxidation, plasma enhanced chemical vapor deposition (PECVD) and atmospheric pressure chemical vapor deposition (APCVD). Polyvinyl alcohol (PVA) was used as a wetting agent to improve the surface wetting behavior of the LSCO precursor solution onto the silica. The surface wetting o...

In this paper, we consider the steady state Mean Square Error (MSE) analysis for 2-D LMS algorithm in which the filter's weights are updated in both vertical and horizontal directions using Fornasini and Marchesini (F-M) state space model. The MSE analysis is conducted using the wellknown independence assumption. First we show that computation of the Weight-Error Correlation Matrix (WECM) for F...

Transform-domain adaptive lters refer to LMS lters whose inputs are preprocessed with a unitary data-independent transformation followed by a power normalization stage. The transformation is typically chosen to be the discrete Fourier transform (DFT), although other transformations such as the cosine transform (DCT), the Hartley transform (DHT), or the Walsh-Hadamard transform, have also been p...

This paper reports the method and results of a comparative usability study conducted on four Learning Management Systems (LMS), two commercial and two Open Source. The results suggest that there is no single most usable LMS, and that there is no significant difference in the usability of commercial vs. Open Source applications for eLearning. Finally, the paper proposes some simple workarounds t...

In this paper, we report a buffering method of improving the quality of ITO thin ®lms on glass by r.f. magnetron sputtering. By applying a ZnO buffer before the ITO deposition in the same run of sputtering, ITO ®lms showed single (111)-oriented highly textured structure, while ITO ®lms showed mixed-oriented polycrystalline structure on bare glass. A design of experiment was taken out to minimiz...