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  • Articles  (37,353)
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  • 1
    Electronic Resource
    Electronic Resource
    The decimation-in-frequency algorithms for a family of discrete sine and cosine transforms (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 3-19 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In this paper we present results in the development of decimation-in-frequency algorithms for a family of discrete sine and cosine transforms. They are closely related to the decimation-in-time algorithms developed by Yip and Rao [1]. The complexity of the algorithms was examined through the number of multiplications and additions as well as the number of different constants required in the transforms. It was found that the decimation-in-frequency approach provides a viable alternative to other fast algorithms for the discrete sine and cosine transforms. In particular, the recursive and modular structure of the algorithms lends itself readily to possible hardware realization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01600005
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  • 2
    Electronic Resource
    Electronic Resource
    Editorial (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 113-113 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602092
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  • 3
    Electronic Resource
    Electronic Resource
    An overview of the special issue: Concurrent architectures for signal processing (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 115-118 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602093
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  • 4
    Electronic Resource
    Electronic Resource
    A size-independent systolic array for matrix triangularization and eigenvalue computation (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 173-189 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A fixed-size systolic array which can efficiently triangularize arbitrarily large matrices is presented. The array performs orthogonal triangularization by applying Givens' rotations in parallel. For matrices larger than the array, the triangularization is accomplished by emulating a large array with the fixed-size array. The distinguishing features of this array are (1) only one type of cell is used, (2) only unidirectional data flow is required, and (3) the array is rectangular shaped. These properties make it more suitable to emulate arbitrarily large arrays by feedback emulation. The array can also efficiently compute the eigenvalues of arbitrarily large matrices by theQR algorithm, because it can also perform theQR decomposition. In the computation the rotation parameters generated during each stage of theQR decomposition are used in the multiplication before the next stage of decomposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602096
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  • 5
    Electronic Resource
    Electronic Resource
    Nonplanar switchable arrays (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 213-234 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract On-line signal processing and automatic control applications give rise to numerous examples of computationally intense algorithms. Architectures which are algorithmically specialized and provide massive parallelism are necessary to cope with such computational requirements. Systolic arrays, which feature parallelism, local communications, and VLSI compatability appear to match up well with these computational requirements. This paper summarizes recent research on a general class of nonplanar systolic arrays. These arrays feature closed-loop data flow. The arrays may be switched dynamically to facilitate I/O simplicity and to accommodate iterative calculations without intermediate I/O interdiction. The closed-loop data flows also facilitate restructuring of the array to accommodate specific algorithmic requirements. The potential for multiuser, multialgorithm operation is also enhanced. Matrix operations are used as examples in the development. Algorithms as diversified as the Riccati equation, LU factorization, the Faddeev algorithm, FFT calculation, and controllability Grammians can be implemented on the nonplanar architectures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602098
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  • 6
    Electronic Resource
    Electronic Resource
    Efficient systolic structures forLU decomposition and system of linear equations (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 275-287 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In this paper two new systolic structures forLU decomposition of an invertible matrix, having 100% and 50% hardware efficiency, are proposed. In comparison, a previously proposed structure forLU decomposition [1] has a hardware efficiency of only 33%. Utilizing one of the proposed systolic structure forLU decomposition, an integrated systolic structure for solving a system of linear equations is also derived. This is unlike other reported systolic structures for solving a system of linear equations, which are obtained by interconnecting heterogeneous subsystems, requiring complicated data realignment. These improvements in the proposed designs have been brought about by giving due consideration to the input/output data flow pattern between various subcomputations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602101
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  • 7
    Electronic Resource
    Electronic Resource
    Minimization of transient signals in recursive time-varying digital filters (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 345-359 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Changing the coefficient set of a recursive digital filter during operation results in a transient signal at the filter output. The amplitude of this transient signal may exceed the amplitude of the output signal before and well after the change of coefficients. This effect is rather disturbing in some applications, such as the processing of audio signals. It is shown how these transients can be minimized without increasing the computational complexity of the filter by the use of a properly chosen set of intermediate coefficients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01599975
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  • 8
    Electronic Resource
    Electronic Resource
    Author's comment to “on decentralized hierarchic stabilization of a large-scale system with constraints” (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 409-411 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01599978
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  • 9
    Electronic Resource
    Electronic Resource
    Call for papers (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. I 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01599981
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  • 10
    Electronic Resource
    Electronic Resource
    On the detection of a signal in colored noise (1988)
    Springer
    Circuits, systems and signal processing 7 (1988), S. 467-479 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A modeling approach is used in the detection of a random signal in colored noise. The received sequence is modeled as a regressive/autoregressive time series, and the presence or absence of the desired signal is determined through a hypothesis testing procedure. The test is based on the construction of anF-statistic using likelihood functions. The statistic can be easily incorporated into the computation of the probability of a false alarm, such as required in the processing of radar signals. Results based on simulated data and actual radar data are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01599921
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