VoIP Quality Measurement System Using Flow Mediation for Large-Scale IP Networks

2011 ◽  
Vol E94-B (7) ◽  
pp. 1973-1981
Author(s):  
Atsushi KOBAYASHI ◽  
Keisuke ISHIBASHI
Keyword(s):  
Measurement System ◽  
Large Scale ◽  
Quality Measurement ◽  
Ip Networks

Design, Measurement and Management of Large-Scale IP Networks

2008 ◽  
Author(s):  
Antonio Nucci ◽  
Konstantina Papagiannaki
Keyword(s):  
Large Scale ◽  
Ip Networks

Development of Quality Measurement System Using Slip Ratio Model with Homogenization System

2019 ◽  
Vol 18 (0) ◽  
pp. 109-118
Author(s):  
Kazuma MINOTE ◽  
Yuki SAKAMOTO ◽  
Shohei TANE ◽  
Yo NAKAJIMA ◽  
Atsuhiro FURUICHI ◽  
...  
Keyword(s):  
Measurement System ◽  
Quality Measurement ◽  
Ratio Model ◽  
Slip Ratio

scholarly journals DEVELOPMENT OF A HIGH-SPEED VIDEOGRAMMETRIC MEASUREMENT SYSTEM WITH APPLICATION IN LARGE-SCALE SHAKING TABLE TEST

2019 ◽  
Vol IV-2/W7 ◽  
pp. 33-38
Author(s):  
S. Gao ◽  
Z. Ye ◽  
C. Wei ◽  
X. Liu ◽  
X. Tong
Keyword(s):  
Data Processing ◽  
Measurement System ◽  
High Speed ◽  
Large Scale ◽  
Moving Objects ◽  
Shaking Table Test ◽  
Image Sequences ◽  
Shaking Table ◽  
Dynamic Monitoring ◽  
Observation Network

<p><strong>Abstract.</strong> The high-speed videogrammetric measurement system, which provides a convenient way to capture three-dimensional (3D) dynamic response of moving objects, has been widely used in various applications due to its remarkable advantages including non-contact, flexibility and high precision. This paper presents a distributed high-speed videogrammetric measurement system suitable for monitoring of large-scale structures. The overall framework consists of hardware and software two parts, namely observation network construction and data processing. The core component of the observation network is high-speed cameras to provide multiview image sequences. The data processing part automatically obtains the 3D structural deformations of the key points from the captured image sequences. A distributed parallel processing framework is adopted to speed up the image sequence processing. An empirical experiment was conducted to measure the dynamics of a double-tube five-layer building structure on the shaking table using the presented videogrammetric measurement system. Compared with the high-accuracy total station measurement, the presented system can achieve a sub-millimeter level of coordinates discrepancy. The 3D deformation results demonstrate the potential of the non-contact high-speed videogrammetric measurement system in dynamic monitoring of large-scale shake table tests.</p>

MULTI-TONE WAVEFORM MEASUREMENT SYSTEM ENABLING CHARACTERIZATION OF MICROWAVE DEVICES

2014 ◽  
Vol 23 (10) ◽  
pp. 1450141
Author(s):  
MUHAMMAD AKMAL CHAUDHARY ◽  
JONATHAN LEES ◽  
JOHANNES BENEDIKT ◽  
PAUL TASKER
Keyword(s):  
Measurement System ◽  
Measurement Data ◽  
Quality Measurement ◽  
Cost Effective ◽  
Operating Conditions ◽  
Efficient Manner ◽  
Vector Error Correction ◽  
Sampling Oscilloscope ◽  
Rf Components ◽  
Vector Error

This paper presents a fully automated time domain, waveform measurement system, capable of measuring multi-tone waveforms up to a frequency of 14 GHz. Multi-tone waveform measurement capabilities will prove useful in enhancing the understanding of the response of devices under realistic operating conditions, and allow for detailed investigation into device problems leading to memory effects. The system, which is based around a standard sampling oscilloscope, is capable of measuring all four traveling waves simultaneously. It is a cost effective solution, capable of capturing high quality measurement data, it consists of two test sets one to measure RF components of the signal and one to measure IF components, which are then recombined before being measured by the sampling oscilloscope. Vector error correction is applied to the measured data to fully calibrate the system to the device plane, ensuring any dispersion in the connecting hardware is removed. A multi-tone waveform sampling method is employed, ensuring the waveforms are captured in the most efficient manner. Device results are presented showing the multi-tone voltage and current waveforms at the device plane. Some useful applications of the system are demonstrated and explained.

scholarly journals Establishing a Quality Measurement System for Cancer Care in Japan

2013 ◽  
Vol 43 (3) ◽  
pp. 225-232 ◽  
Author(s):  
Takahiro Higashi ◽  
Fumiaki Nakamura ◽  
Nobuhiro Saruki ◽  
Tomotaka Sobue
Keyword(s):  
Measurement System ◽  
Cancer Care ◽  
Quality Measurement
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