# Proceedings of the IEEE

## Filter Results

Displaying Results 1 - 20 of 20
• ### Expert system technology for the military: selected samples

Publication Year: 1988, Page(s):1327 - 1366
Cited by:  Papers (8)  |  Patents (1)
| |PDF (4515 KB)

Considers the applications of expert systems to complex military problems. A brief description of needs for expert systems in the military arena is given. An important aspect of expert systems concerns using uncertain information and ill-defined procedures. Many of the general techniques of dealing with uncertainty are described. The major portion of this work addresses specific expert system exam... View full abstract»

• ### Thresholding based on learning theory

Publication Year: 1988, Page(s):1379 - 1381
Cited by:  Papers (3)
| |PDF (369 KB)

Learning theory is applied to real-time thresholding of gray-level images on a line-by-line basis. With this approach, each scan line becomes an isolated entity and a dynamic threshold value for each pixel is iteratively calculated while scanning. The approach works with horizontal or vertical scanning. The locations of objects in the image may also be identified while thresholding. This approach ... View full abstract»

• ### On the block least squares adaptive digital filters realized using the fast Fourier transform

Publication Year: 1988, Page(s):1383 - 1385
Cited by:  Papers (1)  |  Patents (1)
| |PDF (311 KB)

The authors formulate a block-based least-squares problem in the frequency domain. They then develop computationally efficient block least-squares algorithms that can be realized using the fast Fourier transform. They also present computer simulation results demonstrating the convergence characteristics of the proposed algorithms.<> View full abstract»

• ### Microprocessor implementation of fast Walsh-Hadamard transform for calculation of symmetrical components

Publication Year: 1988, Page(s):1385 - 1388
Cited by:  Papers (5)
| |PDF (316 KB)

A microprocessor-based algorithm for the calculation of symmetrical components of a three-phase system is presented. The symmetrical component transformation is applied to the input waveform, and the harmonic content in the sequence components thus obtained is filtered out by using the fast Walsh-Hadamard transform. The algorithm is fast and accurate and the three sequence components can be calcul... View full abstract»

• ### Performance analysis of a voice/data multiplexer based on Markov renewal process modelling

Publication Year: 1988, Page(s):1390 - 1393
| |PDF (420 KB)

Voice and data transmission on a common link is modelled as a Markov renewal process. The performance of an integrated voice/data multiplexer with arbitrary message length distribution and nongated service discipline, particularly mean data message delay, is analyzed using the model. Numerical results are presented.<> View full abstract»

• ### Realization of multiplierless coherent detection scheme in digital domain

Publication Year: 1988, Page(s):1394 - 1395
| |PDF (239 KB)

A digital NTSC decoder was developed for separating a composite video signal into its digital component signals without using multipliers for colour demodulation. The coherent detection scheme was realized in real time and is shown to provide good performance.<> View full abstract»

• ### Comments, with reply, on A new approach to recursive Fourier transform'

Publication Year: 1988, Page(s):1395 - 1396
Cited by:  Papers (2)
| |PDF (196 KB)

The commenter points out that the recursive structure of the running Fourier transform has been investigated by a number of authors not quoted by Amin in his work (see ibid., vol.75, no.11, p.1537-1538, 1987). He also holds that the main idea behind the generalization presented in the third section stems from the properties of a yet more general class of features that can be computed using the sam... View full abstract»

• ### An asymptotically superior algorithm for computing the characteristic polynomial of a tridiagonal matrix

Publication Year: 1988, Page(s):1393 - 1394
| |PDF (180 KB)

The author describes an algorithm for computing the characteristic polynomial of a tridiagonal matrix. It is quite general and consists in the application of the divide-and-conquer technique to the evaluation of a three-term recurrence relation. The algorithm developed requires O(n log2n) arithmetic operations as compared to the classical algorithm that requires O(... View full abstract»

• ### A general framework for developing and evaluating band-limited function extrapolation methods

Publication Year: 1988, Page(s):1381 - 1383
| |PDF (284 KB)

It is shown that the bandlimited function extrapolation can be considered as an approximation problem in operator space. Within this framework, the Papoulis-Gerchberg method and two other methods for extrapolation are analyzed. Particular attention is given to approximation using Taylor and Chebyschev series, and to approximation using the Lagrange interpolation method View full abstract»

• ### Coaxial circular array: studies related to sidelobe suppressed beam patterns for underwater transducer application

Publication Year: 1988, Page(s):1374 - 1376
Cited by:  Papers (2)
| |PDF (204 KB)

An analysis of sidelobe-suppressed beam patterns other than the usual shading methods is carried out for uniformly excited elements in a coaxial circular array at different operating wavelengths. Improved beamwidths and suppressed sidelobes are obtained for multiplicative array techniques useful for high-resolution bathymetry; however, in the case of an array with tilted element pattern, the sidel... View full abstract»

• ### Design of RC-active filters for large variations in the gain-bandwidth product

Publication Year: 1988, Page(s):1368 - 1370
| |PDF (232 KB)

A simple technique to design RC active filters to meet specified performance bounds over a wide range of values for the gain-bandwidth product is presented. The technique uses the simplicity approximation to the acceptability region to iteratively modify an ideal design View full abstract»

• ### Comments, with reply, on Closed-form solution for underground impedance calculations'

Publication Year: 1988, Page(s):1396 - 1397
Cited by:  Papers (1)
| |PDF (164 KB)

D.J. Tylavsky et al. (see ibid., vol.74, no.9, p.1290-1292, 1986) formulate the boundary value problem of an electric line source eccentrically located in a cylindrical cavity. Their solution is consistent with the full-wave solution for a similar problem arising in electrical geophysics. The commenter claims that, in reducing their solution to a simpler form, the authors make some physical approx... View full abstract»

• ### The cascade EM algorithm

Publication Year: 1988, Page(s):1388 - 1390
Cited by:  Papers (9)
| |PDF (244 KB)

The estimate-maximize (EM) algorithm is an iterative method for finding maximum-likelihood parameter estimates from incomplete data. The authors develop an extension of the EM algorithm that may be useful in accelerating the algorithm and in simplifying the computations involved. The extension works with an intermediate complete data specification, and performs intermediate steps at some iteration... View full abstract»

• ### On three-dimensional rotations, coordinate frames, and canonical forms for it all

Publication Year: 1988, Page(s):1376 - 1378
Cited by:  Papers (1)
| |PDF (224 KB)

Some properties of the eigenproblem for a three-dimensional rotation matrix are shown, and related to the geometrical rotation parameters. The problem of assigning a unique canonical coordinate frame to a set of three mutually orthogonal axes is considered. The assignment is such that it corresponds to a minimal overall rotation with respect to the reference system. It is noted that this problem i... View full abstract»

• ### Application of running Hartley transform in adaptive digital filtering

Publication Year: 1988, Page(s):1370 - 1372
Cited by:  Papers (13)
| |PDF (156 KB)

A transform-domain adaptive digital filtering technique based on the concept of the running discrete Hartley transform (RDHT) is presented, with an application. This Hartley implementation is shown to have a speed advantage over the running FFT approach proposed and implemented recently. Possible implementation of the RDHT in various applications is outlined. Particular attention is given to imple... View full abstract»

• ### Proceedings of the IEEE: the first 75 years

Publication Year: 1988, Page(s):1268 - 1279
Cited by:  Papers (5)
| |PDF (1396 KB)

The author traces the history of the Proceedings of the IEEE from its inception under the Institute of Radio Engineers to the present. The presentation follows the various stages of the journal's development and discusses its changing roles over the years. Included is commentary on the man who founded the Proceedings and on those who have guided it since View full abstract»

• ### An improved algorithm for low-pass to bandpass transformations

Publication Year: 1988, Page(s):1378 - 1379
Cited by:  Papers (2)
| |PDF (128 KB)

An algorithm is presented for computing the coefficients of a continuous-time bandpass transfer function that was obtained by applying the standard transformation to a normalized low-pass prototype. The method has all the desirable features of a recently described algorithm by S.A. Dyer (1987) while achieving increased computational efficiency through use of a recursion relation View full abstract»

• ### On geometric sequences of reflection coefficients and Gaussian autocorrelations

Publication Year: 1988, Page(s):1372 - 1374
Cited by:  Papers (3)
| |PDF (256 KB)

The author shows that by interpreting the lattice filter as a discrete transmission line, the problem of determining the reflection coefficients associated with a Gaussian autocorrelation can be solved easily using the Schur algorithm. These reflection coefficients have been shown to be in geometric progression; it is claimed that this has been done in a much simpler and more enlightening manner t... View full abstract»

• ### Evolution of the MOS transistor-from conception to VLSI

Publication Year: 1988, Page(s):1280 - 1326
Cited by:  Papers (54)
| |PDF (4484 KB)

Historical developments of the metal-oxide-semiconductor field-effect transistor (MOSFET) during the last 60 years are reviewed, from the 1928 patent disclosures of the field-effect conductivity modulation concept and the semiconductor triode structures proposed by Lilienfeld to the 1947 Shockley-originated efforts which led to the laboratory demonstration of the modern silicon. MOSFET in 1960. A ... View full abstract»

• ### Imaging with reduced holographic data-an application of the AR model to a multifrequency hologram

Publication Year: 1988, Page(s):1367 - 1368
Cited by:  Papers (1)
| |PDF (164 KB)

An application of the AR (autoregression) model in the scheme of the maximum entropy method to a multifrequency hologram of few frequency elements is presented in order to reconstruct an image of high resolution and quality. A direct extrapolation of the frequency array components of the hologram by the AR model is shown to be effective and stable, i.e., monotonically sensitive to the order of the... View full abstract»

## Aims & Scope

The most highly-cited general interest journal in electrical engineering and computer science, the Proceedings is the best way to stay informed on an exemplary range of topics.

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## Meet Our Editors

Editor-in-Chief
H. Joel Trussell
North Carolina State University