New porphyrin-based charge storage materials will be synthesized, including porphyrin monomers, dyads, and triple-decker sandwich coordination compounds. Novel approaches for development of charge-transfer layers also will be investigated. Molecular-based charge-storage materials will be incorporated into a variety of novel nanodevice designs in the Misra lab. Material samples will be delivered...

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This paper proposes a novel method for designing two-channel and M-channel causal stable IIR PR filter banks using cosine modulation. In particular, we show that the PR condition of the two-channel IIR filter banks is very similar to the two-channel FIR case. Using this formulation, it is relatively simple to satisfy the PR condition and to ensure that the filters are causal stable. Using a sim...

Sinw ITR filhs 1~1w lowrr c.oltll)llt,~.tiorlnl ~WIIIldrxity t.han FIR filters. SOIIIP tlvsign mvflds for IIR fi1t.w banks have IWVII lwwvntrd in t 1~~ rvwnt. lit~rmturw Smith rt, al. hare lmqmd a class of liwar phase IIR fi1t.w hnks. Howm~~r t,llis m~tlml restricts tlw ortlrr of t,hr num*rator to hv odtl ant1 .morvovcr .has sonw drawhacks. 111 this palm WV lmsrnt two tlc4gn nwt~hotls for lirwa...

www.xilinx.com 1 © 2009 Xilinx, Inc. All rights reserved. XILINX, the Xilinx logo, and other designated brands included herein are trademarks of Xilinx, Inc. All other trademarks are the property of their respective owners. A large percentage of filters implemented in the digital domain are Finite Impulse Response (FIR) filters. These filters are used over a wide range of sample rates and are w...

The direct design of a linear phase R R one allows perfectly linear phase, but at the expense of the high filter order, N, and consecuently high computational burden for the given specification. IIR filters, however, can be designed with much smaller orders than their R R couterparts, but at the expense of the non-linear phase. It is, however, possible to design almost linearphase IIR filters f...

Explicit solutions are given for the rational function P (z) for two classes of IIR orthogonal two-band wavelet bases, for which the scaling filter is maximally flat. P (z) denotes the rational transfer function H(z)H(1=z), where H(z) is the (lowpass) scaling filter. The first is the class of solutions that are intermediate between the Daubechies and the Butterworth wavelets. It is found that t...

The FIR & IIR Filters are being designed using HDL languages since speed is among the chief interest in this era; the main objective is to enhance the speed of the system. In the whole system if the speed of the individual block is enhanced the overall speed of the system is enhanced digital computer arithmetic is an aspect of logic design with the objective of developing appropriate algorithms...

The use of a filter bank IIR filters for the spectral decomposition and analysis signals has been popular many years. As such, new filter-bank resonator-based structure, representing an extremely hardware-efficient received good deal attention. Recently, multiple-resonator (MR)-based general cascaded-resonator (CR)-based have proposed. In comparison to single-resonator-based analyzers, analyzer...

System identification using infinite-impulse-response (IIR) model is considered. Because the error surface of IIR filters is generally multi-modal, global optimisation techniques are preferred in order to avoid local minima. An efficient global optimisation method, called the adaptive simulated annealing (ASA), is adopted, and a new batch-recursive ASA algorithm is developed for on-line identif...