Effective modulus of polycrystalline aggregates in different geometrical configurations

Geometrical characterizations of constant modulus receivers

Convergence properties of the constant modulus (CM) and the Shalvi–Weinstein (SW) algorithms in the presence of noise remain largely unknown. A new geometrical approach to the analysis of constant modulus and Shalvi–Weinstein receivers is proposed by considering a special constrained optimization involving norms of the combined channel-receiver response. This approach provides a unified framewo...

Geometrical Understanding of Theconstant Modulus Algorithm

This thesis analyzes the multimodal structure of an adaptive algorithm called the Constant Modulus Algorithm (CMA) in the digital communication applications blind equalization and blind (cross polarized) source separation. In order to deal with the fourth order high dimensional cost function of the CMA, a geometrical approach is applied. This thesis consists of the following three main results....

Geometrical ambiguity of pair statistics: point configurations.

Point configurations have been widely used as model systems in condensed-matter physics, materials science, and biology. Statistical descriptors, such as the n -body distribution function g(n), are usually employed to characterize point configurations, among which the most extensively used is the pair distribution function g(2). An intriguing inverse problem of practical importance that has bee...

Geometrical aspects of critical Ising configurations in two dimensions.

Optimization of Measurement Configurations for Geometrical Calibration of Industrial Robot

The paper is devoted to the geometrical calibration of industrial robots employed in precise manufacturing. To identify geometric parameters, an advanced calibration technique is proposed that is based on the non-linear experiment design theory, which is adopted for this particular application. In contrast to previous works, the calibration experiment quality is evaluated using a concept of the...