To the approximation of ideal ambiguity surface
نویسندگان
چکیده
In this paper, we extend our modification of the waveform approximation technique proposed by Wilcox (1960) to the case of the cross-ambiguity surface. This modification allows the design of a non-linear frequency modulated signal to be transmitted by radar and a corresponding reference signal to be used by the matched filter. This pair is designed so that the sidelobes of the cross-ambiguity surface are minimal in a specified region of interest.
منابع مشابه
T-Rough Sets Based on the Lattices
The aim of this paper is to introduce and study set- valued homomorphism on lattices and T-rough lattice with respect to a sublattice. This paper deals with T-rough set approach on the lattice theory. The result of this study contributes to, T-rough fuzzy set and approximation theory and proved in several papers. Keywords: approximation space; lattice; prime ideal; rough ideal; T-rough set; set...
متن کاملUncertainty analysis of hierarchical granular structures for multi-granulation typical hesitant fuzzy approximation space
Hierarchical structures and uncertainty measures are two main aspects in granular computing, approximate reasoning and cognitive process. Typical hesitant fuzzy sets, as a prime extension of fuzzy sets, are more flexible to reflect the hesitance and ambiguity in knowledge representation and decision making. In this paper, we mainly investigate the hierarchical structures and uncertainty measure...
متن کاملCalculation of the Induced Charge Distribution on the Surface of a Metallic Nanoparticle Due to an Oscillating Dipole Using Discrete Dipole Approximation method
In this paper, the interaction between an oscillating dipole moment and a Silver nanoparticle has been studied. Our calculations are based on Mie scattering theory and discrete dipole approximation(DDA) method.At first, the resonance frequency due to excitingthe localized surface plasmons has been obtained using Mie scattering theory and then by exciting a dipole moment in theclose proximity of...
متن کاملRough ideals based on ideal determined varieties
The paper is devoted to concern a relationship between rough set theory and universal algebra. Notions of lower and upper rough approximations on an algebraic structure induced by an ideal are introduced and some of their properties are studied. Also, notions of rough subalgebras and rough ideals with respect to an ideal of an algebraic structure, which is an extended notion of subalgebras and ...
متن کاملOn the synthesis problem for a waveform having a nearly ideal ambiguity surface∗
In this paper we consider the problem of constructing a waveform with globally optimal ambiguity surface properties in a region surrounding the main lobe. We consider Hermite waveforms as the basis functions of our construction algorithm and discuss the problem of minimizing the volume under the ambiguity surface over a certain given region. In the case of a circular region, we show that under ...
متن کامل