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Communications, Radar and Signal Processing, IEE Proceedings F

Issue 6 • Date October 1984

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Displaying Results 1 - 15 of 15
  • Editorial. Design and application of digital signal processors

    Publication Year: 1984, Page(s):561 - 562
    IEEE is not the copyright holder of this material | PDF file iconPDF (214 KB)
    Freely Available from IEEE
  • Implementation of a parallel-formant speech synthesiser using a single-chip programmable signal processor

    Publication Year: 1984, Page(s):563 - 569
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (876 KB)

    A speech quality almost indistinguishable from human speech has already been demonstrated at the Joint Speech Ressearch Unit (JSRU), using a parallel-formant speech synthesiser. Realisations of this synthesiser have incluede an analogue hardware version, and a simulation as a FORTRAN program. The new sampled-data implementation described here performs the calculations required at a sample rate of ... View full abstract»

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  • Digital implementation of a narrowband satellite receiver

    Publication Year: 1984, Page(s):570 - 576
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (845 KB)

    This paper describes the use of a general purpose digital signal processor in the narrowband sections of a satellite receiver. The receiver is an experimental laboratory based tool for investigating the suitability of various demodulation schemes for use with low-cost mobile terminals. To this end six receiver types were implemented, details of three are presented. The architecture of the signal p... View full abstract»

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  • LSI circuits for adaptive array processing in passive sonar

    Publication Year: 1984, Page(s):577 - 583
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1861 KB)

    An important function in underwater passive listening is array processing. Its role is to distinguish, as far as possible, the acoustic targets present in the water. During the last two decades, much effort has been devoted to adaptive array processing to obtain better performance than with conventional beamforming, both in resolving power and protection against high-level sources. However, the am... View full abstract»

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  • Control ordered sonar hardware (cosh)¿a hardware based signal processing graph implementation

    Publication Year: 1984, Page(s):584 - 592
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1822 KB)

    Current generation sonar acoustic signal processing systems operate at throughputs comparable to those predicted for fifth generation computer systems. Programmable sonar processors are currently deployed that operate with throughputs in excess of 100 million operations per second. These processing speeds are achieved using distributed networks of programmable hardware based primitives which execu... View full abstract»

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  • Parallel computations of optic flow in early image processing

    Publication Year: 1984, Page(s):593 - 602
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1308 KB)

    Current calculations of optic flow from the motion of edge features in an image sequence are described, and used to illustrate the implementation of low-level image processing calculations on an SIMD (single instruction multiple data) machine. Most of the computational effort in the optic flow calculations is required for carrying out large, multidimensional, spatiotemporal convolutions over the i... View full abstract»

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  • Signal processing applications of a distributed array processor

    Publication Year: 1984, Page(s):603 - 609
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1074 KB)

    The advantages of attaining a high computational throughput for numerically intensive digital algorithms through highly parallel distributed processors are described. This approach is shown to be especially appropriate for signal processing rather than more general forms of computing. A machine architecture which exploits this is in course of development and algorithms for real-time processing in ... View full abstract»

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  • Signal processing with occam and the transputer

    Publication Year: 1984, Page(s):610 - 614
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (577 KB)

    The transputer and its programming language occam offer a new approach to digital system design. The transputer is a computer on a chip, which may be used for building highly concurrent systems. Occam is a language in which a system may be described as a set of concurrent processes. Together they can simplify the task of designing and implementing concurrent systems. An ideal application with whic... View full abstract»

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  • Design and implementation of digital wave filters using universal adaptor structures

    Publication Year: 1984, Page(s):615 - 622
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1192 KB)

    The paper discusses progress on the topic of wave filters realised by a variety of approaches in digital technology and presents, in summary, an introduction to relevant theoretical concepts. The implementation of these filters is dependent on the efficient realisation of elements known as adaptors. This paper describes a universal adaptor concept which allows the realisation of either series or p... View full abstract»

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  • Systolic matrix and vector multiplication methods for signal processing

    Publication Year: 1984, Page(s):623 - 631
    Cited by:  Papers (21)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (899 KB)

    Matrix and vector multiplications are widely used in signal processing in operations such as FIR and IIR filtering, feature extraction and classification. Frequently, signal processing must be done in real time requiring the use of special purpose VLSI hardware. Regular structures such as systolic arrays are well suited for matrix and vector operations and are also amenable to VLSI implementation.... View full abstract»

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  • Optimised bit level systolic array for convolution

    Publication Year: 1984, Page(s):632 - 637
    Cited by:  Papers (18)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (877 KB)

    A bit level systolic array for computing the convolution operation is described. The circuit in question is highly regular and ideally suited to VLSI chip design. It is also optimised in the sense that all the cells contribute to the computation on each clock cycle. This makes the array almost four times more efficient than one which was previously described. View full abstract»

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  • Application of a systolic array to adaptive beamforming

    Publication Year: 1984, Page(s):638 - 645
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1123 KB)

    The paper describes a new technique for adaptive antenna beamforming. By analysing the adaptive antenna as a least-squares problem, it is possible to organise the control processor around a recursive minimisation procedure operating in the data domain. This avoids the explicit computation of the covariance matrix estimate as required by the method known as sample matrix inversion (SMI). The paper ... View full abstract»

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  • Maximum entropy method in image processing

    Publication Year: 1984, Page(s):646 - 659
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1827 KB)

    Maximum entropy has proved to be an enormously powerful tool for reconstructing images from many types of data. It has a privileged position as the only consistent method for combining different data into a single image. It has been used most spectacularly in radio astronomical interferometry, where it deals routinely with images of up to a million pixels, and high dynamic range. We also give exam... View full abstract»

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  • Generalised information theory for inverse problems in signal processing

    Publication Year: 1984, Page(s):660 - 667
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1115 KB)

    A powerful technique for the solution of a number of experimental in verse problems, described by an underlying first-kind Fredholm equation is presented. Such problems include, for example, diffraction-limited imaging and the analysis of laser light scattering data. The technique requires the construction of the `singular system¿¿ of the propblem which then provides exact orthonormal bases both f... View full abstract»

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  • IEE Colloquium report: IEE colloquium on the current status of systolic array research in the UK

    Publication Year: 1984, Page(s):667 - 668
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (253 KB)

    First Page of the Article
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Aims & Scope

The latest version of this title is Radar, Sonar & Navigation, IET.

Full Aims & Scope