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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Issue 2 • Date Feb 1995

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Displaying Results 1 - 9 of 9
  • Design of two-dimensional IIR digital filters with linear phase

    Publication Year: 1995 , Page(s): 124 - 129
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (484 KB)  

    Digital Spectral Transformation (DST) has been used to approximate the magnitude response specifications of circular, elliptic and fan shaped filters. In this paper, it is shown that when the DST proposed by Harn and Shenoi (1986) is applied to the 1D lowpass prototype filters with linear phase characteristics to realize 2D IIR filters, it preserves both magnitude and phase characteristics in the ... View full abstract»

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  • Boundary filters for finite-length signals and time-varying filter banks

    Publication Year: 1995 , Page(s): 102 - 114
    Cited by:  Papers (27)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (948 KB)  

    We examine the question of how to construct time-varying filter banks in the most general M-channel nonorthogonal case. We show that by associating with both analysis and synthesis operators a set of boundary filters, it is possible to make the analysis structure vary arbitrarily in time, and yet reconstruct the input with a similarly time-varying synthesis section. There is no redundancy or disto... View full abstract»

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  • Two-dimensional rank-conditioned median filter

    Publication Year: 1995 , Page(s): 130 - 132
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (244 KB)  

    A version of 2-D median filter specialized to impulse noise removal introducing negligible distortion in noise-free pixels is proposed. Only pixels of prefixed ranks are replaced with the local median. When extreme ranks (min and max) are chosen, spikes are selectively suppressed, more efficiently than by median filter. Error probability for salt/pepper noise is theoretically derived. MAE and visu... View full abstract»

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  • Design of nonuniform division multirate FIR filter banks

    Publication Year: 1995 , Page(s): 115 - 121
    Cited by:  Papers (25)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (532 KB)  

    In this paper, a new design for nonuniform division multirate filter banks is presented. Signals are divided into a number of nonuniform frequency bands using analysis filters having individual arbitrary center frequencies. Each bandwidth ratio is given by an integer. After band splitting, the signals are decimated and interpolated irregularly by the integer or fractional factor. The values of fac... View full abstract»

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  • Analog CMOS integration and experimentation with an autoadaptive independent component analyzer

    Publication Year: 1995 , Page(s): 65 - 77
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1032 KB)  

    In this paper we explore a combination of above-and-subthreshold CMOS circuit techniques for the implementation of analog neuromorphic network processing. The implemented network embodies a blind signal separation algorithm performing an independent component analysis. It is essentially a continuous time recursive linear adaptive filter that uses a non-linear adaptation rule. Analog I/O interface,... View full abstract»

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  • A modular current-mode high-precision winner-take-all circuit

    Publication Year: 1995 , Page(s): 132 - 134
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (228 KB)  

    Traditional Winner-Take-All (WTA) circuits rely on the matching of an array of N transistors, where N is the number of inputs of the WTA. This implies that when N increases, also increases the size of the WTA and the distance between the transistors that have to match, which yields to transistor matching degradation and loss of precision in the overall WTA circuit performance. Furthermore, when mu... View full abstract»

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  • Nonlinear behavior of the adaptive LMS algorithm

    Publication Year: 1995 , Page(s): 122 - 124
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (308 KB)  

    This brief demonstrates that the adaptive LMS filter does not necessarily converge in the mean to the Wiener solution through the investigation of the harmonic content of signals in the filter for the case of narrowband signals. A 1 tap filter is examined in detail, and the structure of the estimated and error signals for the filter is investigated for an N tap filter. Simulation results are provi... View full abstract»

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  • Wave-domino logic: theory and applications

    Publication Year: 1995 , Page(s): 78 - 91
    Cited by:  Papers (10)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1052 KB)  

    Wave-pipelining has been investigated extensively as a design method to increase clock frequencies of digital systems. Data are clocked into a combinational circuit with a clock period smaller than the latency of the combinational block. To achieve the minimal period, collisions among waves must be avoided by balancing the delay paths from inputs to all intermediate nodes and outputs. Process vari... View full abstract»

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  • Analysis of the multiple-error and block least-mean-square adaptive algorithms

    Publication Year: 1995 , Page(s): 92 - 101
    Cited by:  Papers (5)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (796 KB)  

    In some block-based and frequency-domain filtering tasks and in multichannel filtering applications, a multiple-error LMS adaptive algorithm, given by Wk+1=Wk+μXk(D k-XkTWk), is employed, In this paper, we examine the mean-square performance of the multiple-error LMS adaptive algorithm for correlated Gaussian input dat... View full abstract»

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Aims & Scope

This title ceased production in 2003. The current updated title is IEEE Transactions on Circuits and Systems II: Express Briefs.

Full Aims & Scope