http://hdl.handle.net/2440/1082 2013-05-20T01:49:43Z http://hdl.handle.net/2440/77822 Title: Mode-meter analysis methods Author: Canizares, Claudio; Dosiek, Luke; Ghasemi, Hassan; Gibbard, Michael John; Johansson, Emil; Ledwich, Gerard; Martin, Russell; Martinez, Enrique; Vanfretti, Luigi; Vowles, David James; Wies, Richard; Zhou, Ning 2011-12-31T13:30:00Z http://hdl.handle.net/2440/77785 Title: Miniaturized bandpass filter with wide stopband using complementary spiral resonator Author: Karami Horestani, Ali; Shaterian, Zahra; Al-Sarawi, Said Fares Khalil; Abbott, Derek; Fumeaux, Christophe Abstract: In this paper complementary spiral resonators are used in the design of compact planar bandpass filters with wide upper stopband. Based on an inductively loaded transmission line model for the complementary spiral resonators it is shown that the ratio of the spurious resonant frequency to the fundamental resonant frequency can be increased. Comparing two filters realized by conventional open-loop resonators and complementary spiral resonators it is shown that the utilization of complementary spiral resonators not only results in a more compact filter but also that a wide upper stopband is achieved. 2011-12-31T13:30:00Z http://hdl.handle.net/2440/77774 Title: Stochastic stability analysis for markovian jump neutral nonlinear systems Author: Wang, Bo; Shi, Peng; Karimi, Hamid Reza; Dong, Xiucheng Abstract: In this paper, the stability problem is studied for a class of Markovian jump neutral nonlinear systems with time-varying delay. By Lyapunov-Krasovskii function approach, a novel mean-square exponential stability criterion is derived for the situations that the system's transition rates are completely accessible, partially accessible and non-accessible, respectively. Moreover, the developed stability criterion is extended to the systems with different bounded sector nonlinear constraints. Finally, some numerical examples are provided to illustrate the effectiveness of the proposed methods. 2011-12-31T13:30:00Z http://hdl.handle.net/2440/77736 Title: Height measurement for humans in motion using a camera: a comparison of different methods Author: Nguyen, Ngoc Hung; Hartley, Richard Abstract: This paper aims to answer the questions whether human height measurement from video is affected by human motion and how accurately human static height can be measured from a video or from a single image frame that captures a walking subject. In this paper, we present a new approach for measuring human height based on the cross ratio. This approach is performed in parallel with the vanishing point based approach for comparison. The accuracy of each approach is examined by comparing the estimated value to the actual static height value which is measured directly. For the height measurement from video, our analyses show that human height varies significantly during human motion and the highest point in a human stride is the most accurate measurement of the static height. We also model the height variation as a sinusoidal pattern to maximize the accuracy of the estimated height. For the height measurement from a single frame, a correction method is developed in which the length of the human torso with human head and the length of the human leg are separately estimated. We conclude that static human height can be measured accurately, even though the variation of human height is significant during human motion. 2011-12-31T13:30:00Z