Joint Use of Constant Modulus and Least Squares Criteria in Linearly-Constrained Communication Arrays
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This paper considers the application of the linear constraints and RLS inverse QR decomposition in adaptive arrays based on constant modulus criterion. The computational procedures of adaptive algorithms are presented. Linearly constrained least squares adaptive arrays, constant modulus adaptive arrays and linearly constrained constant modulus adaptive arrays are compared via simulation. It is demonstrated, that a constant phase shift in the array output signal, caused by desired signal orientation and array weights, is compensated in a simple way in linearly constrained constant modulus adaptive arrays.
KeywordsAdaptive array, constant modulus criterion, RLS, inverse QR decomposition, linear constraints
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2007, vol. 16, č. 4, s. 88-95. ISSN 1210-2512
- 2007/4