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This paper presents a vehicle location estimation based on 79GHz ultra-wideband (UWB) radar, which utilizes various road objects around car. Lane-keeping-assist system with camera is available in many cars to keep self-vehicle inside a solid white line, which is one of important systems for self-driving car. However, camera may be difficult to recognize the line in bad weather conditions, while 79GHz...
These instructions provide guidelines for preparing manuscripts for submission to the Conference Record (CR) of the 2010 IEEE Nuclear Science Symposium and Medical Imaging Conference. If you are using Microsoft Word 6.0 or later to prepare your manuscript, you should use this document as a template. Define all symbols used in the abstract. Do not cite references in the abstract.
Recently, ubiquitous environments have been extensively studied, and hardware environments (e.g., network or small devices) will be available soon. When the hardware environments become available, problems related to service provisioning will still remain. Device (resource) conflict or service conflict will occur in multi-user actual ubiquitous environments. The methods to solve these problems, which...
A 648 MHz 153.8 mm2 45 nm CMOS SoC integrates eight general-purpose CPUs, four dynamically reconfigurable processors, two 1024-way matrix-processors, peripherals and interfaces. Using core enhancement, DDR3-I/F improvement and clock buffer deactivation, this SoC achieves 37.3 GOPS/W at 1.15 V.
Recently, many works on ubiquitous computing have been reported. Many of them assume a closed system such as a smart home. In this paper, we consider assumptions in ubiquitous computing environments and discuss requirements for those environments. In addition, we propose and discuss network architecture for reducing the spatial limitations when controlling devices. Moreover, we show the current implementation...
For embedded systems in the digital-convergence era, various functions such as communication, security, audio, video, and recognition, are required in a single device. However, improving the speed of an embedded LSI in the system is difficult because of the significantly increasing power-consumption problems. Heterogeneous parallelism on an SoC has been studied to solve these problems. A power-thrifty...
Power efficient SoC design for embedded applications requires several independent power-domains where the power of unused blocks can be turned off. An SoC for mobile phones defines 23 hierarchical power domains but most of the power domains are assigned for peripheral IPs that mainly use low-leakage high-Vt transistors. Since high-performance multiprocessor SoCs use leaky low-Vt transistors for CPU...
High quality lanthanum-modified lead zirconate titanate (PLZT) and strontium titanate (STO) thin films were deposited on sapphire substrates using an advanced sol-gel method. This new deposition technique brought high quality epitaxial growth of PLZT thin films on r-cut sapphire and STO thin films on c-cut sapphires. The PLZT film showed high electro-optic (EO) coefficients that were almost comparable...
High quality lanthanum-modified lead zirconate titanate (PLZT) and strontium titanate (STO) thin films were deposited on sapphire substrates using an advanced sol-gel method. This new deposition technique brought high quality epitaxial growth of PLZT thin films on r-cut sapphire and STO thin films on c-cut sapphires. The PLZT film showed high electro-optic (EO) coefficients that were almost comparable...
This paper describes a heterogeneous multi-core processor (HMCP) architecture that integrates general-purpose processors (CPUs) and accelerators (ACCs) to achieve exceptional performance as well as low-power consumption for the SoCs of embedded systems. The memory architectures of CPUs and ACCs were unified to improve programming and compiling efficiency. Advanced audio codec-low complexity (AAC-LC)...
A heterogeneous multi-core processor (HMCP) architecture, which integrates general purpose processors (CPU) and accelerators (ACC) to achieve high-performance as well as low-power consumption with the support of a parallelizing compiler, was developed. The evaluation was performed using an MP3 audio encoder on a simulator that accurately models the HMCP. It showed that 16-frame encoding on the HMCP...
We describe the application of model predictive control (MPC) using state mapping to the automatic landing system of a spaceplane. The controller has to be designed to enable the vehicle to follow reference signals with respect to trajectory and velocity, which are expressed as functions of the downrange. To track the reference signals, a control input is generally designed so that one or more ideal...
The formulation of an adaptive attitude control law with reduced number of estimated parameters is introduced for the automatic landing system of a spaceplane. Adaptive attitude control systems have been designed to obtain the control law by estimating the parameters that describe the dynamics of the vehicle and actuator. Despite the fact that the vehicle was well controlled so as to track a reference...
We propose a packet sampling strategy called fixed-period sampling, which selects at most one packet in every fixed-length period. Under the fixed-period sampling, the number of flow-cache lookups during a unit of time or the number of entries in a flow cache is bounded by a constant, which is simply expressed by a few tuning parameters. As an application of the fixed-period sampling, we also focus...
A heterogeneous multiprocessor on a chip has been designed and implemented. It consists of 2 CPUs and 2 DRPs (Dynamic Reconfigurable Processors). The design of DRP was intended to achieve high-performance in a small area to be integrated on a SoC for embedded systems. Memory architecture of CPUs and DRPs were unified to improve programming and compiling efficiency. 54times AAC-LC stereo encoding has...
Epitaxially grown lanthanum-modified lead zirconate titanate (PLZT) thin films were deposited on r-cut sapphire substrates using a sol-gel method. The new deposition processes of methanol treatments brought high quality epitaxial growth of PLZT thin films. This film showed high electro-optic (EO) coefficients that were almost comparable to those of bulk PLZTs. We believe this advanced deposition technique...
The thin film deposition of proton conductive SrZrO3 (SZO) was demonstrated by liquid delivery Metal-Organic Chemical Vapor Deposition (MOCVD). The deposition conditions, especially oxygen flow, affected a film quality of the SZO thin films as well as deposition temperatures. We consider the materials engineering of impurity doping using this deposition technique will improve the proton conductivity...
Barium strontium titanate (BaxSr1-x)TiO3 films are expected to be utilized for microwave integrated circuit devices; therefore, the preparation of highly crystalline BST films has been investigated. In this study, we attempted to prepare (BaxSr1-x)TiO3 films on MgO and sapphire substrates by sputtering under various conditions. It was revealed that BST films could be obtained at lower substrate temperatures...
Ferroelectric lead zirconium titanate (PZT) has been used in FeRAMs, which are expected to become common large capacity devices. We have extensively studied PZT thin films and their micro-processing. However, there are several problems of degradation by crystal defects at grain boundaries in thin films and surface damage by microfabrication. Self-assembled nanocrystals are useful for solving these...
The fabrication processes in air of semiconducting bismuth-and sodium-modified barium titanate, Ba1-x(Bi1/2Na1/2)xTiO3 (BBNT100x) ceramics were investigated for a lead-free PTC (positive temperature coefficient of resistivity) thermistor material usable over 130degC. The two processes and their electric properties are described. The Nb-doped BBNT6 ceramics and BBNT6 ones sintered with the oxygen-containing...
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