The article describes the construction technology of closed horizontal drainage in irrigated areas, presents results theoretical studies to determine depth drainage, width trench, diameter pipe, thickness filter material, distance between drains and module. According studies, average is 1.5 m , trench 0.3 pipe 0.1 filtration material . 150 with module l/s 180 a drain 0.12 210 0.14

A framework for positioning, navigation, and tracking problems using particle filters (sequential Monte Carlo methods) is developed. It consists of a class of motion models and a general nonlinear measurement equation in position. A general algorithm is presented, which is parsimonious with the particle dimension. It is based on marginalization, enabling a Kalman filter to estimate all position...

Two or more bilateral Laplace transforms with a complex argument “s” may be equal in a finite vertical interval when, in fact, the transforms correspond to different functions. In this article, we prove that the existence of a bilateral Laplace transform in any finite horizontal interval uniquely determines the corresponding function. The result appears to be new as we could not find it in the ...

Abstract The use of dead reckoning and fingerprint matching for navigation is a widespread technical method. However, mismatching low fusion accuracy are prevalent issues in indoor systems. This work presents an improved dynamic time warping chicken particle filter to handle these two challenges. To generate the Horizontal Vertical (HV) fingerprint, pitch roll employed instead original intensit...

The term “venetian blind effect” was first coined by Cibis and Haber (1951) to describe a phenomenon in which a black and white vertical grating (Figure 1A) viewed with a neutral density filter over one eye, appears as a set of white slats, each one slanted around a central vertical axis appearing nearer on the side with the filter. A source of confusion is that Ogle (1962) renamed it “irradiat...

The ensemble Kalman filter (EnKF) approximates background error covariance by using a finite number of ensemble members. Although increasing the ensemble size consistently improves the EnKF analysis, typical applications of the EnKF to realistic atmospheric simulations are conducted with a small ensemble size due to limited computational resources. The finite ensemble size introduces a sampling...

a r t i c l e i n f o a b s t r a c t Aimed at the problem of nonlinear and time-varying noise characteristics in inertial and land-based integrated navigation system, a cubature Kalman filter algorithm based on maximum a posterior estimation and fading factor has been proposed, and the fuzzy control theory is used to make it better to track the time-varying noise characteristics. Nonlinear mea...

This paper presents a single current controlled current conveyor trans-conductance amplifier (CCCCTA)based multi-input single output (MISO) voltage-mode universal biquad filter. The proposed filter employs only single CCCCTA, two capacitors and one permanently grounded resistor. The proposed filter realizes all the standard filter functions i.e. low pass (LP), band pass (BP) and high pass (HP),...