Equalisation of CCSNo7 link availability

It is shown that the CCSNo7 link availability depends on both the signalling load and signalling unit length if the signal unit error rate monitor (SUERM) algorithm is built according to current ITU-T recommendations. A rearrangement of the SUERM algorithm is suggested so that the link availability has the largest and most constant possible value for the prescribed BER     

Exact calculation of mean CCSNo7 link alignment time

Two methods of mean CCSNo7 link alignment time calculation are suggested. One of these methods is also applicable for mean CCSNo7 link changeover time calculation. The results obtained are compared to results of known methods and simulation results     

Generalised split structure adaptive algorithm

A pragmatic approach is proposed to continuously split up an M=2 ^L length adaptive transversal filter into M parallel single-parameter subsections. The algorithm has a simple modular structure and each of the subsections can be adapted separately such that the convergence behaviour of the system is improved     

Generalised Rice-lognormal channel model for wirelesscommunications

The Rice-lognormal (RLN) channel model is generalised to include an additive diffuse-multipath component having constant average power. The generalised RLN (GRLN) model includes as limiting cases many well-known narrowband models, e.g. Rayleigh, Rice, lognormal and Loo. The GRLN probability density functions of both envelope and phase are evaluated     

Generalised model for programmable sequence controllers

A theoretical analysis of the operation of a programmable sequence controller is presented. From this, a generalised model is developed that enables the sequence controller to be implemented as a sequential machine operating in conjunction with a stored program.     

Generalised vector fitting algorithm for macromodelling of passive electronic components

Compact rational macromodels, based on measurements or full-wave EM simulations, are very important for efficient time domain and frequency domain simulation of high-speed interconnection structures. A popular rational broadband macromodelling algorithm, called vector fitting, is generalised to include also frequency derivatives of the spectral data samples. The use of higher-order frequency derivatives can significantly reduce the overall computational cost of the simulation and modelling process.     

Generalised Viterbi algorithm for trellis coded signals transmittedthrough broadband wireless channels

A receiver structure is proposed for trellis coded signals transmitted through broadband wireless channels based on the generalised Viterbi algorithm (GVA). Simulation results show that the proposed receiver structure is suitable for high bit rate wireless applications and gives close to optimal performances with reasonable complexity     

Generalised resultant

The resultant of two polynomials is generalised and used to compute the least order corresponding to a given transfer-function matrix.     

Generalised autocorrelation theorem

It is shown that the modified generalised discrete transform of the autocorrelation of a sequence yields the shift-invariant spectral modes within some scale factors. This is a fundamental result, as it is a logical extension of the well known autocorrelation theorem for the discrete Fourier transform.     

Generalised Cockcroft-Walton voltage multipliers

The letter suggests how a Cockroft-Walton voltage multiplier can be generalised to be driven by multiphase square waves.     

Generalised interdigital helical filter

A new helical-filter structure is proposed, having as its model the generalised interdigital microwave network. The structure consists of two rows of resonators, with crosscoupling between rows. This configuration, which can be implemented at low cost, can realise a wide variety of responses. A design example of a linear phase filter is given.     

Generalised erlang loss formula

A teletraffic model for a full availability loss system with a generalised Poisson input stream is proposed. The idea is based on the analytic continuation of the Poisson distribution and the erlang-B formula. The authors use techniques based on birth and death processes and state-dependent arrival rates. The advantages of simplicity and uniformity in representing both peaked and smooth traffic make the model attractive for modelling traffic in network analysis and synthesis     

Generalised impossible differentials of advanced encryptionstandard

A class of generalised four-round impossible differentials of the advanced encryption standard is presented and shown to be the best that can be obtained with the miss-in-the-middle technique     

Generalised partitioned-charge-based bipolar transistor modellingmethodology

A generalised formulation of the partitioned-charge-based (PCB) non-quasi-static (NQS) bipolar junction transistor (BJT) model is developed. The methodology, derived by taking moments of the hole (electron) continuity equation, allows the use of arbitrary weighting functions to partition the excess charge in the quasi-neutral base (QNB) to obtain an optimal NQS BJT model within the PCB equivalent network representation     

Generalised stable bidirectional associative memory

A general correlation model of the bidirectional associative memory (BAM) is proposed. A sufficient condition for bidirectional stability of the general model by using a system energy (Lyapunov) function is derived. Based on the general model, a stable high order BAM model is described as an example and simulated for the performance of storage capacity.<>     

Generalised solutions for distributed lines

Attention is drawn to the fact that previous classifications o generalised exact closed-form solutions for distributed lines are incomplete. Equations are presented which could form the basis for such a classification.     

Generalised transfer function of injection-type transistor

The transfer function of an injection-type transistor is derived for arbitrary driving conditions as well as signal level. The derivation is based on the generalised charge-control approach to nonparametric devices advanced previously by the author.     

Generalised class of nonlinear-type hybrid filters

A new class of nonlinear filters called the generalised directional distance rational hybrid filters (GDDRHF) for multidimensional signal processing is described. The application at hand is colour image filtering problems. The GDDRHF filter is a two-stage filter, which exploits the features of a new directional distance filter, where the temporal information related to the central sample is expressed by its weight, and those of the rational operator. This weight is incorporated to a sum of vector distances and vector angles. It is shown that the new GDDRHF outperforms a number of widely known nonlinear filters with respect to all criteria used.     

Generalised theory of uniform transmission lines

The conventional circuit theory of uniform two-conductor transmission lines (TEM mode) assumes that at any cross-section the current in one conductor is equal and opposite to that in the other. This is not necessarily true, and even when it is true the resulting theory does not permit solution of some simple problems such as evaluation of the voltage difference between two points on the same conductor. The author presents a more general circuit theory which does permit solution of such problems and does not demand current balance. He shows that when there is current imbalance the expressions for voltage contain a term which depends linearly upon line length, as well as the familiar hyperbolic function terms