Abstract: Track-before-detect (TBD) is a statistical hypothesis testing technique that tests for the presence or otherwise, of a dynamic target using noisy and/or incomplete sensor measurements. Rather than making a detection decision directly from the observations, then handing relevant detection information to a model based tracker, TBD methods reverse this order of processing by […]
C. Zou, Resonance breakdown of dielectric resonator antennas on metallic substrates at visible frequencies, 17th December 2015.
Abstract: Dielectric resonators have seen increasing applications in optical metamaterial designs. The ability of nanoscale Dielectric Resonator Antennas (DRAs) to support electric and magnetic resonances at visible frequencies is critical for their efficient light manipulation, which leads to promising applications such as sensing, imaging, field enhancement, and integrated optics. This talk discusses the resonance […]
Abstract: The French-German research institute in Saint-Louis is a bi-national institution providing innovative scientific solutions for defence and security applications. The research topics which are investigated include novel high-power laser sources, novel energetic materials, and aerodynamics. An increasing focus on protection technologies reflects the recent developments in France and many other European countries. New […]
Q. Fang, A Global Optimization Framework for Parameter Estimation of a Wind Generation Unit Model, 26th November 2015.
Abstract: This research purposes a global optimization method that could be applied in parameter estimation of wind generation unit model. When complex nonlinear models, like a wind generation unit model are used, the parameter estimation based on local optimization methods, such as nonlinear least squares method or Newton’s method, may not be able to […]
D. Scholten, Decentralised cascaded PV inverters: A comparison between one and two stage systems, 12th November 2015.
Abstract: Compared with parallel photovoltaic (PV) micro inverters, cascaded AC module integrated converter (MIC) systems have the added advantages of multilevel waveform switching and higher conversion efficiencies due to the absence of high gain voltage boost requirements. However, traditional centralised operation of the cascaded system is not possible due to wiring & installation cost […]
Abstract: The scalable system belongs to a class of systems whose scales can grow. In applications of large systems, such property can help the system components perform steadily and efficiently. Similarly for scalable formations, the sizes can adjust to a varying number of vehicles. Application examples include robotics, UAVs, and exploration through unknown environments. […]
Assoc. Prof. T. Matsui, Active terahertz and microwave metamaterials utilizing organic π-conjugated materials, Friday 23rd October 2015.
Abstract: In recent years, metamaterials are actively studied since novel optical functionalities cannot be accessible by nature materials come to real. To develop active metamaterials is one of extensively studied topics and we are working on developing active terahertz (THz) and microwave metamaterials utilizing organic π-conjugated materials. In this talk, I will show our […]
Abstract: Street is a reconfigurable parallel computer architecture. It executes a production language directly in hardware with the aim of realising advanced cognitive agents in a more energy efficient manner than conventional computers. Street requires frequent communication between many processing elements and to make this communication more energy efficient, a network-based communication platform, StreetNet, […]
L.B. White, Cramer-Rao Bounds and Maximum Likelihood Estimation for Narrowband Temporally Correlated Gaussian Signals Incident on a Sensor Array, 8th October 2015.
Abstract: This presentation considers modelling and estimation for narrowband sensor array processing in the presence of temporal signal correlation. When the incident signals are spatially uncorrelated, we derive a spatio-temporal signal model based on Kronecker calculus. For the Gaussian case, we derive formulae for the Cramer-Rao bounds for the angles-of-arrival and signal parameters. The […]