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Computers and Digital Techniques, IEE Proceedings E

Issue 4 • Date July 1982

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Displaying Results 1 - 6 of 6
  • Adaptive filtering, using a bit-slice microcomputer

    Page(s): 133 - 144
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1597 KB)  

    An adaptive filter routine is presented in which the frequency-selective characteristics are related to the sampling frequency. The sampling frequency can be locked to the input frequency within a predetermined range, and consequently implement self-adaptive characteristics. The routine utilises one set of 2nd-order notch-filter coefficient values as its vehicle. No external reference signal is required. The phase relationship between the input and output signals is used to perform the adaptive procedure. The real-time implementation of this adaptive technique is presented, and time-estimation curves are provided. The system is extended to consider adaptive noise cancellation where the adaptive mechanism removes unwanted noise superimposed upon the input signal. The system used to implement the adaptive routine is a 16-bit microprogrammable microprocessor based on the Intel 3000 series of computing components. View full abstract»

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  • Low-density-burst error-locating linear codes

    Page(s): 145 - 146
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (309 KB)  

    Lower and upper bounds are presented on the number of parity-check digits required for a linear code that locates a single sub-block containing errors which are in the form of low-density bursts. View full abstract»

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  • Comparison of an Ethernet-like communication system with the Cambridge ring

    Page(s): 147 - 155
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1496 KB)  

    This paper describes the simulation and comparison of two types of local-area network. One is a branching broadcasting system, based closely on the standard Ethernet, requiring contention-resolving hardware, and the second is the Cambridge digital communication ring, a point-to-point communication system using the empty-slot principle for deterministic multiplexing. View full abstract»

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  • Reconfigurable computer architectures

    Page(s): 156 - 164
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1598 KB)  

    A survey of reconfigurable computer architectures is presented. This shows two distinct trends: data-flow architectures and dynamic architectures. If a broad classification of programs based on two kinds of parallelism in programs, i.e. instruction and data, is adopted, then a pooled-resource reconfigurable multiprocessor (PRRMP) system can be evolved. The salient features of such a system, including hardware and software aspects, are discussed in this paper. View full abstract»

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  • Book review: Database Design and Implementation on Maxi- and Mini-Computers

    Save to Project icon | PDF file iconPDF (181 KB)  
    Freely Available from IEEE
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