A novel computationally highly e cient realization of sharp symmetrical bandstop FIR lter is proposed. The new structure is derived using the frequency-response-masking technique, where the bandedge-shaping lter is derived from half-band lter by substituting each delay of the half-band lter by M delays. The masking lters are unconventional. They are quadrature lters derived from linear combinat...

Envelope-constrained ltering is concerned with the design of a time-invariant lter to process a given input signal such that the noiseless output of the lter is guaranteed to lie within a prespeci ed output mask. In this paper, using Laguerre lters andH1 optimization techniques, the continuous-time envelope-constrained lter design problem has been reformulated and solved as a constrained H1 mod...

A method for designing more regular (more diieren-tiable) scaling functions than the Daubechies wavelets is presented. The approach is to numerically minimize the HH older exponent (a measure of smoothness) subject to constraints on the autocorrelation sequence of the scaling lter. The \maximally smooth" wavelets which result have a HH older exponent which grows faster than that of the Daubechi...

In this paper we propose an analyi-cal method for the design of two-channel optimum FIR compaction lters which determine optimum or-thonormal lter banks. The method is applicable for a fairly large class of random processes. Under some conditions, the method successfully constructs the theoretically optimum solution. Whenever this is the case, the magnitude-squared responses of the l-ters are u...

Biorthogonal modulated lter banks when compared to paraunitary ones provide the advantage that the overall system delay can be chosen independently of the lter length thus resulting in low delay lter banks They have recently been studied by several authors In the paper we connect di erent design methods quadratic constrained least squares optimization cascade of sparse self inverse matrices and...

Nonsmooth optimization is applied to the design of transmitter and receiver lters for data transmission. This optimization method allows tradeoos between several performance measures{ISI, transmitter lter average power output, and receiver lter power gain. An FCC mask constraint on the transmitter lter is imposed. An example illustrates the design method.

Particle lters are becoming increasingly important and useful for state estimation in nonlinear systems. Many lter versions have been suggested, and several results on convergence of lter properties have been reported. However, apparently a result on the convergence of the state estimate itself has been lacking. This contribution describes a general framework for particle lters for state estima...

In this paper, uniform, critically decimated lter banks are used to approximate nonuniform lter banks wherein di erent lters have approximately the same magnitude response, but di erent phase, thus forming a linear periodically timevarying lter whose characteristics are similar to those of a nonuniform bank. This is done by post-processing a number of selected subbands of a uniform bank using a...

Generalized Lapped Orthogonal Transform (GenLOT) based image coder is used to compress 2-D seismic data sets. Its performance is compared to the results using wavelet-based image coder. Both algorithms use the same state-ofthe-art zerotree coding for consistency and fair comparison. Several parameters such as lter length and objective cost function are varied to nd the best suited lter banks. I...

The possibility of the compensation of amplitude and phase errors of data acquisition channels is investigated. The complex passband error can be signiicantly reduced by an appropriate digital lter, as it is illustrated on the example of a dynamic signal analyzer. The aspects of IIR and FIR equalizers are studied: it turns out that for the given anti-aliasing lter (Cauer lter, order 11) an FIR ...