The normal form and the coset correlation function of an arbitrary linear recurring m-array over F2 are introduced. It is proved that the normal form can be determined by its coset correlation function. Introduction Nguyen [3] studied the coset correlation of m-sequences and pointed out that the coset correlation provides an attractive technique for detecting the normal form when m-sequences ar...

In this paper we investigate comparison methods of different geometric configurations of adaptive antenna arrays for mobile communications. The investigated antenna configurations were linear, semicircular, rectangular, wing and zigzag array. All considered antenna arrays consisted of seven antenna elements with an inter-element spacing of half wavelength. The Geometry macrocellular environment...

An optimization problem for designing non-uniformly spaced, linear arrays is formulated and solved by means of an improved genetic algorithm (IGA) procedure. The proposed iterative method aims at array thinning and optimization of element positions and weights by minimizing the side-lobes level. Selected examples are included, which demonstrate the effectiveness and the design flexibility of th...

Lowest common ancestor algorithms are in [12, 19, 2]. Algorithms to construct suffix trees in linear time are in [22, 18, 21, 5]. Suffix arrays were introduced in [17]. The linear time construction algorithm for suffix arrays is from [14]. The simple construction of the LCP array from the suffix array is from [15]. The k-mismatch problem is discussed in [7, 16, 1]. The FM index is from [6]. Som...

Imaging using interferometer arrays based on the Van Cittert-Zernike theorem has been widely used in astronomical observation. Recently it was shown that superresolution can be achieved this system for imaging two weak thermal point sources. Using quantum estimation theory, we consider fundamental limit of resolving transverse separation strong sources arrays, and show resolution is not limited...