Pseudonoise code acquisition is investigated for constant hopping rate fast frequency-hopped (FFH)/M -ary frequency-shift keying systems under the effects of white Gaussian noise and band multitone jamming. In particular, serial search acquisition systems based on the traditional multiple-dwell test (up to three dwells) and three novel sequential tests are analyzed and compared. Analytical resu...

In this paper, the problem of dwell time for Hurwitz stability switched linear systems is considered. Dwell determined based on solution Lyapunov matrix equation differential systems. A numerical example illustrating efficiency theorem has been given.

Abstract: With its large capacity, the total urban rail transit energy consumption is very high; thus, energy saving operations are quite meaningful. The effective use of regenerative braking energy is the mainstream method for improving the efficiency of energy saving. This paper examines the optimization of train dwell time and builds a multiple train operation model for energy conservation o...

Retrievable inferior vena cava filters (rIVCFs) were developed to provide temporary protection from pulmonary embolism while minimizing the risk of filter-related deep venous thrombosis associated with permanent inferior vena cava filters. In practice, however, the majority of rIVCFs are left in place permanently, with historic retrieval rates as low as 8.5%. Although poor clinical follow-up of...

In this study, the effects of dwell time on Ga focused ion beam machining at 30 keV for different milling currents were investigated. The surface topographies were analysed using atomic force microscopy (AFM) and the substrate structures were investigated by means of Raman spectroscopy. It has been observed that by increasing dwell time the total sputtering yield was increased even though the t...

The transformation of zero-field-cooled (ZFC) magnetization curves of PLD MgB2 films annealed in situ for different dwell times and at different temperatures is studied within the context of structural analysis. The PLD films were deposited using an off-axis geometry followed by two series of annealing conditions: the dwell time series and the annealing temperature series. ZFC magnetization cur...