摘要:

AbstractThe problem of knowing whether the non‐unique solvability depends on the particular values of the components or on their topological interconnections is studied for linear networks with arbitrary, time‐invariant as well as time‐varyingn‐ports.Within every network, the topological notions of its sockets and of their independence are introduced. Networks with independent sockets are shown‐at least when there are no relations among the non‐zero coefficients, nor repetitions of the same coefficient are allowed, i.e. under suitable generality assumptions‐to be uniquely solvable. Networks with dependent sockets are shown to be never uniquely solvable.Polynomially bounded algorithms, requiring only integer arithmetic, to test independence are available. When independence fails, a topological configuration of components which shows fewer topologically independent variables than equations, is pr

ISSN:0098-9886    

DOI:10.1002/cta.4490150402

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractIn this paper, we present an efficient algorithm for calculating the steady‐state response of nonlinear circuits such as forced circuits driven by multi‐frequency‐component signals, forced oscillators, and coupled oscillators. We call the technique asubstitution methodbecause the variation at each step is calculated by solving an associated time‐invariant sensitivity circuit at each frequency component of the residual error, whose circuit is derived from a relaxation method. the algorithm is very simple and efficient, and it can be applied to a wide variety of nonlinear c

ISSN:0098-9886    

DOI:10.1002/cta.4490150403

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractSimple and rigorous proofs of results due to various authors on tests for the property that a multivariable polynomial be devoid of zeros in the closed unit polydisc are given. the proof technique rests largely on a correct and complete formulation of the fact that the zeros of a polynomial are continuous functions of its coefficients. It is shown that almost all other related results can be derived in this manner.

ISSN:0098-9886    

DOI:10.1002/cta.4490150404

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractA systematic approach to the design of stray‐insensitive switched‐capacitor (SC) circuits from active‐RC orRLCprototypes employing a parasitic insensitive SC differential voltage‐controlled current‐source as a basic building block is attempted. Procedures for transforming active‐RCandRLCcircuits into stray‐insensitive SC circuits are formulated and illustrated with typical examples. Restrictions on the pole‐frequency and pole‐Qof the SC biquad are derived so that it closely emulates the frequency response of the original active‐RCbiquad. the SC biquad and the ladder filter derived by the proposed procedures were simulated with discrete components and tested in the laboratory. Test results agree closely with the theo

ISSN:0098-9886    

DOI:10.1002/cta.4490150405

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractA method is presented to realize a class of 2‐D IIR digital filters by extension of 2‐D FIR structures through feedback paths. Most features of the initial FIR structures remain unchanged (e.g. parallelism, number of delay elements). the approach described is applied to a class of 2‐D FIR filter structures owning several advantages. the method is generalized to semicausal fi

ISSN:0098-9886    

DOI:10.1002/cta.4490150406

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490150401

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY