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This paper presents a self-test methodology and test structures for testing Through Silicon Vias (TSVs) in 3D-IC system prior to stacking in order to improve overall yield. A Scan Switch Network (SSN) architecture is proposed to perform pre-bond TSV scan testing. In the SSN, novel self-test structures are proposed and integrated to detect TSV defects by stuck-atfault and delay-based tests. By exploiting...
In virtualized environments, the customers who purchase virtual machines (VMs) from a third-party cloud would expect that their VMs run in an isolated manner. However, the performance of a VM can be negatively affected by co-resident VMs. In this paper, we propose vExplorer, a distributed VM I/O performance measurement and analysis framework, where one can use a set of representative I/O operations...
An integrated 3–5 GHz impulse radio ultrawideband (IR-UWB) wireless transceiver SoC for wireless body area network (WBAN) applications is reported in this paper. To enhance system robustness against narrow band interference (NBI) signals, receiver low noise amplifier (LNA) input matching network is optimized to reject outband NBI below 2.5 GHz. A non-coherent energy detection scheme using analog squarer...
With the development of the vehicle electronic and information technology, the police need collecting more and more electronic evidence during handling traffic accidents. How to effectively use electronic data for traffic accident treatment service has been a new problem in our work. On the basis of the introduction of related concepts and research of the present situations, this paper introduces...
Microblogs, a mixture of new media and social networks, is a hotbed of lurking users. It is meaningful to capture profiles for a lurking user in customized applications because a lurking user can receive all messages except for sending few messages in microblogs. However, it is difficult to capture profiles for a lurking user because of lacking its user-generated contents. In this paper, we propose...
Aimed at the industrial sorting technology problems, this paper researched correlative algorithm of image processing and analysis, and completed the construction of robot vision sense. the operational process was described as follows: the camera acquired image sequences of the metal work piece in the sorting region. Image sequence was analyzed to use algorithms of image pre-processing, Hough circle...
Vsmg an indirect method, aerosol optical depths (AODs) are calculated based on atmospheric visibility and water vapor pressure measured at 94 key climate stations in western China (west of 100Έ) over 1961–2005. Inferred AODs are compared with the MODIS satellite measurements for year of 2004. Results show that AODs averaged over 1961–2005 exhibit large values in southern Xinjiang basin and south of...
A novel back-projection framework for single image super-resolution is proposed in this paper. In our framework, the edge of the high-resolution image is firstly detected by the canny edge detection algorithm and the bilateral filtering algorithm, and the high-resolution image is divided into edge area and flat area. Then the edge area of the high resolution image is filtered by the adaptive kernel...
In object retrieval method based on bag-of-features, local regions of images are characterized using high dimensional descriptors. These descriptors are hierarchically quantized into “visual words” to represent images. One problem of the quantization step is that it reduces the discriminative power of the local descriptors. To address this problem, “descriptor-space soft assignment” mechanism is used...
This paper discusses design and analysis of new nano crystal quantum dot (NC-QD) based field programmable electrostatic discharge (ESD) protection structures. Prototype NC-QD ESD structures were verified experimentally, achieving a wide ESD triggering voltage tuning range of 2.5V, very fast response time of ∼100pS, ESD protection level of 25mA/μm in human body model (HBM) and 400mA/μm in charged device...
Effective and steady routing protocol will be an important factor to ensure performance of network. Protocol test is an important means to guarantee the rightness and effectiveness of the implementations of a protocol. Protocol conformance test focuses on the conformance of the implementation under test and the requirement of protocol standards. According to the characteristic of BGP4+ protocol, the...
This paper presents an overview of the co-design technique for broadband RF ESD protection circuit designs. The unique mixed-mode ESD simulation design methodology allows full-chip design optimization and prediction of broadband RF ICs with full low-parasitic ESD protection, which were validated experimentally using ultra wideband (UWB) RF ICs and RF switch circuits in CMOS technologies.
In order to investigate the temperature field and flow field distributions in tunnel, a tunnel physical model containing an inner heat source was established by using computational fluid dynamics CFD simulation software Fluent 6.3. The finite volume method and SIMPLE algorithm were adopted to disperse and solve the governing equation. The simulations of the temperature field and flow field were carried...
Today, there is an increasing demand for high frequency, high power and high temperature applications where the converters will operate in a harsh environment. Switching devices based on Silicon Carbide (SiC) offer a significant performance improvement on the switch level compared with Si devices. This paper describes the current state of the art in SiC devices briefly. Then the research and development...
This paper reports a new nano crystal quantum dots (NC-QD) tunable on-chip electrostatic discharge (ESD) protection mechanism and structures. Experiments validated the programmable ESD protection concept. Prototype structures achieved an adjustable ESD triggering voltage range of 2.5V, very fast ESD response of ∼100pS, ESD protection density of 25mA/µm in human body model (HBM) and 400mA/µm in charged...
This paper addresses the target detecting problem of the shared-spectrum multistatic radar. All of the transmitters emit the same waveforms in the same spectrum in this radar system. By widely separating the platforms of the shared-spectrum radars and adopting the temporal diversity of transmitter-receiver pairs, the spatial diversity is exploited to improve the detection performance. The signal model...
The problem of range sidelobe suppression is addressed for Stepped Frequency Continuous-wave (SFCW) radar. In this paper, a novel approach is presented via reiterative maximum signal minus interference level (RMSMIL) to suppress the range sidelobes. Results of simulations and real data show advantages of the proposed algorithm by comparing with the reiterative minimum mean-square error (RMMSE)-based...
The recent proposed Adaptive Multi-Pulse Compression (AMPC) has been shown to successfully suppress both the range-Doppler sidelobes and clutter, but the implementation of AMPC is limited by the relatively high computational complexity in many current real-time systems. In this paper, a fast algorithm via dimensionality reduction approach is proposed for the proposed AMPC. Simulation results demonstrate...
Deduplication has become one of the hottest topics in the field of data storage. Quite a few methods towards reducing disk I/O caused by deduplication have been proposed. Some methods also have been studied to accelerate computational sub-tasks in deduplication. However, the order of computational sub-tasks can affect overall deduplication throughput significantly, because computational sub-tasks...
For low RCS targets, the SNR of echoes is not high enough for detection. In this paper, the detection performance of full coherent netted radar system is analysed and some results are given in comparison with MIMO radar.
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