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This paper presents a power-efficient 10-bit SAR ADC. A novel comparator topology with a dynamic common-gate stage is proposed to increase the pre-amplification gain under a low power supply voltage, thereby reducing noise and offset. Statistical estimation and loading switching techniques are synergically combined to further improve the energy efficiency. Moreover, the SAR sequencer and clock generator...
It is a common issue to remove undesirable objects during reconstruction. The holes left behind are then needed to be given plausible information for the integrity. To complete the missing part of a 3D map generated from stereo inputs, the task can be separated into two operations which are repairing the color image and the depth map. In this paper, we design and release a specialized stereo dataset...
In Augmented Reality (AR) environment, realistic interactions between the virtual and real objects play a crucial role in user experience. Much of recent advances in AR has been largely focused on developing geometry-aware environment, but little has been done in dealing with interactions at the semantic level. High-level scene understanding and semantic descriptions in AR would allow effective design...
Traversable region estimation is the fundamental enabler in autonomous navigation. In this paper, we propose a traversable region segmentation algorithm using stereo vision. We address this problem mainly in road scenes for the goal of autonomous driving. Using only geometry information, our approach has the advantages of effectiveness and robustness. The proposed approach is based on a cascaded framework...
This paper presents the biological control for a radially free distributed hexapod robot. The CPG(central pattern generators) network consists of six CPG units based on Hopf neural oscillator that used to generate rhythmic oscillatory signals for the end trajectories of legs. The ring-type network topology of CPG network that consists of six CPG units is established. By computing the inverse kinematics,...
The random Fourier Features method has been found very effective in approximating the kernel functions. Our former studies show that through a mixing mechanism of the feature space formed by random Fourier features and certain linear algorithms, the fuzzy clustering results in the approximated feature space are comparable to or even exceed the classical kernel-based algorithms. To increase the robustness...
In this paper, we develop an access controller management model which provides new opportunities for further reducing the computation repetition and data transmission redundancy for Mobile Edge Computing (MEC) in 5G network. We propose novel algorithms for solving the offloading problem with consideration of tradeoff between energy consumption and the amount of offloaded data under constraint of overall...
New scheme of quantum-well-intermixing (QWI) enhancement is proposed for SOA/EAM integration. Using supercritical-fluid, QWI can be performed at low temperature regime, leading to 10dB improvement in optical modulation. 13dB modulation, 17dB gain and >15GHz f-3dB were observed in 100μm long EAM, confirming simple integration scheme.
High-bandgap offset 1300nm InAlGaAs quantum well (QW) has been used for electroabsorption modulator. High conduction/valance bandgap offset ratio allows strong exciton effect under high electric field, leading to broadband operation. >10dB extinction ratio from 1280nm to 1320nm and 40GHz of electical-to-optical response has been demonstrated.
Mixed Reality (MR) is of increasing interest within technology- driven modern medicine but is not yet used in everyday practice. This situation is changing rapidly, however, and this paper explores the emergence of MR technology and the importance of its utility within medical applications. A classification of medical MR has been obtained by applying an unbiased text mining method to a database of...
This research mainly focuses on the household bean sprouts machines, putting forward a kind of intelligent photoelectric household bean sprouts machine, which is made up of the base, cover, cultivating cylinder, cultivating dish, pressure tray, pressure sensor, intelligent controller and control panel, etc. Considering that different beans need different illumination levels, this design uses the liquid...
Markerless Augmented Reality (AR) registration using the standard Homography matrix is unstable, and for image-based registration it has very low accuracy. In this paper, we present a new method to improve the stability and the accuracy of marker-less registration in AR. Based on the Visual Simultaneous Localization and Mapping (V-SLAM) framework, our method adds a three-dimensional dense cloud processing...
This paper focuses on the measurement of magnetic properties of soft magnetic composite(SMC) materials at high frequencies and high flux densities. Since SMC materials are very promising in the design of high-frequency and high power density motor, the losses at a very high frequency are needed to be measured and then the calculation of the performance of the machine will be accurate. In this study,...
This paper proposes a novel 16/10 segmented rotor switched reluctance machine (SSRM) for belt-driven starter generators (BSGs) of hybrid electric vehicles. The stator of proposed SSRM consists of two types of stator poles: exciting pole and auxiliary pole, and the rotor of proposed SSRM is made up of a series of discrete segments. Firstly, the concept of the conventional SRM and proposed machine is...
The extensive applications of switched reluctance motor (SRM) have been limited due to its drawback of torque ripple. Thus, the reduction of torque ripple is an important problem in studying the SRM. A novel 16/10 segmented SRM (SSRM) is proposed in this paper. The proposed SSRM performs well in terms of torque ripple and tolerant-fault characteristic. The stator of the proposed structure is constructed...
Calculation and matching of the main parameters of a brushless DC (BLDC) motor for a Battery electric vehicle (EV) is studied in this paper. Usually, different shapes of permanent magnet (PM) and different magnetizing methods will affect the performance of the motor. Especially when the motor is designed for an EV, more elements need to be considered, such as efficiency under normal operating conditions...
The internet of things (IoT) has a variety of application domains, including smart homes. This paper analyzes distinct IoT security and privacy features, including security requirements, threat models, and attacks from the smart home perspective. Further, this paper proposes an intelligent collaborative security management model to minimize security risk. The security challenges of the IoT for a smart...
Raman spectroscopy, which can provide valuable information about chemical structure, is widely used as an analytical tool for material identification and quantitative chemical/biological analysis. Surface-enhanced Raman spectroscopy (SERS), overcoming the traditional limitation of weak signals, improves the signal intensity significantly. The preprocessing of Raman spectrum is a very useful way to...
In modern aerospace equipment, power transmission technology is replacing the traditional hydraulic and pneumatic transmission technology. Power transmission technology can be roughly divided into Electro-Mechanical Actuator (EMA), Electro Hydrostatic actuator (EHA) and Integrated Actuator Package (IAP) based on different structures, of which EMA is the most widely used. Motor servo system is the...
A new high-speed 1300nm directly modulated DFB laser with high power has been demonstrated. With low parasitic capacitance of coplanar electrodes, 25mW has been obtained in a long waveguide, while maintaining high-speed performance. 50Gb/s PAM-4 modulation over 35km transmission without amplification has been realized with low degradation.
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