Results 1 to 10 of about 79,488 (266)

A robust state estimator against constant measurement delay based on the sensitivity penalisation of model‐parameter errors for systems with no exogenous inputs

open access: yesIET Radar, Sonar & Navigation, 2021
In this study, a class of linear system, which is with no exogenous input and suffered from constant measurement delay and uncertain model‐parameter errors, is under consideration.
Qiunong He   +3 more
doaj   +1 more source

Knowledge‐based multiple hypothesis tracking and identification of manoeuvring reentry targets

open access: yesIET Radar, Sonar & Navigation, 2023
This paper addresses the integrated tracking and identification problem of a manoeuvring reentry target that performs intentional lateral manoeuvres to disrupt ground radars.
Chan‐Seok Lee   +2 more
doaj   +1 more source

Memory‐ and time‐efficient dense network for single‐image super‐resolution

open access: yesIET Signal Processing, 2021
Dense connections in convolutional neural networks (CNNs), which connect each layer to every other layer, can compensate for mid/high‐frequency information loss and further enhance high‐frequency signals. However, dense CNNs suffer from high memory usage
Nasrin Imanpour   +5 more
doaj   +1 more source

Improved performance of gas turbine diagnostics using new noise‐removal techniques

open access: yesIET Signal Processing, 2021
Fault detection and identification (FDI) systems are responsible for detecting and identifying errors as fast as possible with high reliability. These systems should be robust against noise and avoid false warnings.
Mohsen Ensafjoo, Mir Saeed Safizadeh
doaj   +1 more source

Fast‐Tracker 2.0: Improving autonomy of aerial tracking with active vision and human location regression

open access: yesIET Cyber-systems and Robotics, 2021
In recent years, several progressive studies promote the development of aerial tracking. One of the representative studies is our previous work Fast‐Tracker which is applicable to various challenging tracking scenarios.
Neng Pan   +5 more
doaj   +1 more source

Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties

open access: yesThe Journal of Engineering, 2019
Unimodular (i.e. constant modulus) sequences with good correlation properties are useful in many areas like communication and radar/sonar. However, several algorithms for designing unimodular sequences with the minimisation of correlation sidelobes ...
Yinghao Sun   +3 more
doaj   +1 more source

Design and characteristic analysis of hybrid OFD–LFM–PC waveforms in the MIMO radar

open access: yesThe Journal of Engineering, 2019
In this study, a new set of hybrid orthogonal frequency division–linear frequency modulation–phase coded (OFD–LFM–PC) waveforms are proposed to improve the detection performance of multiple-input-multiple-output (MIMO) radars.
Sheng Hong   +4 more
doaj   +1 more source

Representation theory and multilevel filters

open access: yesJournal of Applied Mathematics and Computing, 2022
We present a general setting where wavelet filters and multiresolution decompositions can be defined, beyond the classical $\mathbf L^2(\mathbb R,dx)$ setting. This is done in a framework of {\em iterated function system} (IFS) measures; these include all cases studied so far, and in particular the Julia set/measure cases.
Daniel Alpay   +2 more
openaire   +4 more sources

Design of a novel stripline diplexer using frequency‐dependent couplings

open access: yesElectronics Letters, 2023
A novel stripline diplexer design using frequency‐dependent couplings (FDC) to achieve multiple transmission zeros is developed in this paper. The transmission zeros generated by FDCs are flexible and controllable; on the basis of the existing cross ...
Jiaxing Song   +5 more
doaj   +1 more source

Optimal Control with Partially Observed Regime Switching: Discounted and Average Payoffs

open access: yesMathematics, 2022
We consider an optimal control problem with the discounted and average payoff. The reward rate (or cost rate) can be unbounded from above and below, and a Markovian switching stochastic differential equation gives the state variable dynamic.
Beatris Adriana Escobedo-Trujillo   +3 more
doaj   +1 more source

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