Online ISSN
1350-911X
Print ISSN
0013-5194
Electronics Letters
Volume 11, Issue 13, 26 June 1975
Volumes & issues:
-
Volume 59 (2023)
-
Volume 58 (2022)
-
Volume 57 (2021)
-
Volume 56 (2020)
-
Volume 55 (2019)
-
Volume 54 (2018)
-
Volume 53 (2017)
-
Volume 52 (2016)
-
Volume 51 (2015)
-
Volume 50 (2014)
-
Volume 49 (2013)
-
Volume 48 (2012)
-
Volume 47 (2011)
-
Volume 46 (2010)
-
Volume 45 (2009)
-
Volume 44 (2008)
-
Volume 43 (2007)
-
Volume 42 (2006)
-
Volume 41 (2005)
-
Volume 40 (2004)
-
Volume 39 (2003)
-
Volume 38 (2002)
-
Volume 37 (2001)
-
Volume 36 (2000)
-
Volume 35 (1999)
-
Volume 34 (1998)
-
Volume 33 (1997)
-
Volume 32 (1996)
-
Volume 31 (1995)
-
Volume 30 (1994)
-
Volume 29 (1993)
-
Volume 28 (1992)
-
Volume 27 (1991)
-
Volume 26 (1990)
-
Volume 25 (1989)
-
Volume 24 (1988)
-
Volume 23 (1987)
-
Volume 22 (1986)
-
Volume 21 (1985)
-
Volume 20 (1984)
-
Volume 19 (1983)
-
Volume 18 (1982)
-
Volume 17 (1981)
-
Volume 16 (1980)
-
Volume 15 (1979)
-
Volume 14 (1978)
-
Volume 13 (1977)
-
Volume 12 (1976)
-
Volume 11 (1975)
-
Volume 10 (1974)
-
Volume 9 (1973)
-
Volume 8 (1972)
-
Volume 7 (1971)
-
Volume 6 (1970)
-
Volume 5 (1969)
-
Volume 4 (1968)
-
Volume 3 (1967)
-
Volume 2 (1966)
-
Volume 1 (1965)
Volume 11, Issue 13
26 June 1975
Low-sensitivity control of nuclear reactors
- Author(s): M.M. Elmetwally and N.D. Rao
- Source: Electronics Letters, Volume 11, Issue 13, p. 269 –270
- DOI: 10.1049/el:19750203
- Type: Article
- + Show details - Hide details
-
p.
269
–270
(2)
The design of nuclear-reactor controllers with low sensitivity to variations in system operating conditions is formulated. The superiority of the low-sensitivity design over the conventional optimal one is demonstrated by a numerical example.
Optical-fibre excitation by finite beams
- Author(s): C. Pask and K. Barrell
- Source: Electronics Letters, Volume 11, Issue 13, p. 270 –272
- DOI: 10.1049/el:19750204
- Type: Article
- + Show details - Hide details
-
p.
270
–272
(3)
Simple formulas are given for trapped-mode power excited by a spot of light illuminating an optical fibre. The results are used to discuss features of Gaussian-beam excitation.
Criterion for the stability of all moments of a particular stochastic system
- Author(s): J.L. Willems and D. Aeyels
- Source: Electronics Letters, Volume 11, Issue 13, p. 272 –273
- DOI: 10.1049/el:19750205
- Type: Article
- + Show details - Hide details
-
p.
272
–273
(2)
It is shown that, for stochastic systems with multiplicative noise, all moments may be asymptotically stable for some values of the noise intensities. For a particular stochastic system, a criterion is derived.
Bounds of the 2-input describing function
- Author(s): U.M. Rao and D.P. Atherton
- Source: Electronics Letters, Volume 11, Issue 13, page: 273 –273
- DOI: 10.1049/el:19750206
- Type: Article
- + Show details - Hide details
-
p.
273
(1)
In the letter, it is shown that the describing function for a single-valued nonlinearity, whose input is a signal plus other unrelated signals, is bounded by the nonlinearity slope, rather than its sector, as for a single-input signal.
Variance fluctuations of 1/f noise
- Author(s): D.A. Bell and S.P.B. Dissanayake
- Source: Electronics Letters, Volume 11, Issue 13, page: 274 –274
- DOI: 10.1049/el:19750207
- Type: Article
- + Show details - Hide details
-
p.
274
(1)
The difference in behaviour between the variances of 1/f noise and of thermal noise is related to the differences in the ratios of fourth moment to the second moment of the distributions. This ratio is found experimentally to be significantly different in the two cases.
High-radiance small-area gallium–indium-arsenide 1.06 μm light-emitting diodes
- Author(s): A.W. Mabbitt and R.C. Goodfellow
- Source: Electronics Letters, Volume 11, Issue 13, p. 274 –275
- DOI: 10.1049/el:19750208
- Type: Article
- + Show details - Hide details
-
p.
274
–275
(2)
The preparation and performance of 1.06 μm gallium–indium-arsenide high-radiance light-emitting diodes is described. Radiances of 15 W/steradian/cm2 at 100 mA drive were obtained. Direct modulation by means of the current drive up to 250 MHz is reported with 3 dB modulation bandwidth at 150 MHz. These sources will permit the development of wide-bandwidth fibre-optic communication systems, which can take advantage of the low fibre attenuation and material dispersion at 1.06 μm.
Pulse propagation in multimode optical fibres
- Author(s): A.W. Snyder ; D.J. Mitchell ; C. Pask
- Source: Electronics Letters, Volume 11, Issue 13, p. 275 –277
- DOI: 10.1049/el:19750209
- Type: Article
- + Show details - Hide details
-
p.
275
–277
(3)
Coupled mode theory is unnecessary for the analysis of pulse propagation in multimode optic waveguides. Instead, a very simple ray or continuum equation is derived from elementary plane-wave concepts to account for the effects of absorption loss and scattering. The formalism reduces to a diffusion equation for highly forward directed scatterers.
Gain adjusting an optimal regulator
- Author(s): S. Mukhopadhyay
- Source: Electronics Letters, Volume 11, Issue 13, p. 277 –278
- DOI: 10.1049/el:19750210
- Type: Article
- + Show details - Hide details
-
p.
277
–278
(2)
In the letter, starting with a varying output weighting matrix, an attempt has been made to construct an optimal controller comprising a feedback controller with variable gain depending on the variation of state and feedforward controller with gain proportional to derivatives, as well as deviations of polynomial-type measurable disturbance.
Binary sequences with good correlation properties
- Author(s): U. Somaini
- Source: Electronics Letters, Volume 11, Issue 13, p. 278 –279
- DOI: 10.1049/el:19750211
- Type: Article
- + Show details - Hide details
-
p.
278
–279
(2)
A computer-oriented method for designing binary sequences with low autocorrelation sidelobes is discussed. It is shown that this method yields binary codes that are only marginally worse than known better codes. The technique described is quite general and can be applied to other signal-design problems.
Design-parameter evaluation for a class of preset z.f.e.s
- Author(s): G. Prati ; F. Russo ; L. Verrazzani
- Source: Electronics Letters, Volume 11, Issue 13, p. 280 –281
- DOI: 10.1049/el:19750212
- Type: Article
- + Show details - Hide details
-
p.
280
–281
(2)
The problem of determining the design parameters for a class of preset equalisers using transversal filters is considered. Simple and well approximated expressions for the optimum attenuation steps per tap are given to ease the design work or to initiate a computer-aided synthesis.
Convolution and correlation using light diffraction from bulk acoustic waves
- Author(s): J.M. Rouvaen ; E. Bridoux ; R. Torguet ; C. Carles
- Source: Electronics Letters, Volume 11, Issue 13, p. 281 –282
- DOI: 10.1049/el:19750213
- Type: Article
- + Show details - Hide details
-
p.
281
–282
(2)
Bulk acousto-optic signal processors using simultaneous light diffraction in high-figure-of-merit materials are described in the letter and some experimental results are reported.
Calculation of the radiation pattern, gain and input impedance of a Yagi antenna
- Author(s): P.S. Hall ; B. Chambers ; P.A. Mcinnes
- Source: Electronics Letters, Volume 11, Issue 13, p. 282 –283
- DOI: 10.1049/el:19750214
- Type: Article
- + Show details - Hide details
-
p.
282
–283
(2)
A computer program is presented for the calculation of the radiation pattern, gain and input impedance of a Yagi antenna having up to ten elements.
Simple TRAPATT circuit for 2nd-harmonic extraction
- Author(s): C.D. Corbey
- Source: Electronics Letters, Volume 11, Issue 13, p. 283 –284
- DOI: 10.1049/el:19750215
- Type: Article
- + Show details - Hide details
-
p.
283
–284
(2)
An efficient 2nd-harmonic-extraction coaxial TRAPATT oscillator is described. The oscillator consists of two low-impedance sections that essentially control the 2nd-harmonic load and reactive terminations. A peak power output of 25 W at 5.2 GHz is reported from an S band silicon p+–n–n+ TRAPATT diode.
Most viewed content for this Journal
Article
content/journals/el
Journal
5
Most cited content for this Journal
-
Extreme multistability in a memristive circuit
- Author(s): Bo-Cheng Bao ; Quan Xu ; Han Bao ; Mo Chen
- Type: Article
-
Absorptive frequency selective surface using parallel LC resonance
- Author(s): Qiang Chen ; Liguo Liu ; Liang Chen ; Jiajun Bai ; Yunqi Fu
- Type: Article
-
Partial spectral search-based DOA estimation method for co-prime linear arrays
- Author(s): Fenggang Sun ; Peng Lan ; Bin Gao
- Type: Article
-
Experimental verification of on-chip CMOS fractional-order capacitor emulators
- Author(s): G. Tsirimokou ; C. Psychalinos ; A.S. Elwakil ; K.N. Salama
- Type: Article
-
54 Gbit/s OOK transmission using single-mode VCSEL up to 2.2 km MMF
- Author(s): G. Stepniak ; A. Lewandowski ; J.R. Kropp ; N.N. Ledentsov ; V.A. Shchukin ; N. Ledentsov Jr. ; G. Schaefer ; M. Agustin ; J.P. Turkiewicz
- Type: Article
