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IEEE Transactions on Instrumentation and Measurement
Issue 4 • April-2012
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Year: 2012 | Volume: 61 | Issue: 4
IEEE Transactions on Instrumentation and Measurement publication information
Publication Year: 2012,Page(s):C2 - C2
IEEE Transactions on Instrumentation and Measurement publication information
Year: 2012 | Volume: 61 | Issue: 4
Variable-Word-Length Coding for Energy-Aware Signal Transmission
Publication Year: 2012,Page(s):850 - 864
Cited by: Papers (14)
This paper presents an energy-efficient method for data transmission through improved data compression. This is achieved by a new signal source coding method based on the Walsh transform. This research is motivated by the need for extended service life of wireless sensor networks, where individual sensor nodes are energy constrained. Theoretical background is introduced, and its effectiveness is e...Show More
Discrete Wavelet Transform and Radial Basis Neural Network for Semiconductor Wet-Etching Fabrication Flow-Rate Analysis
Publication Year: 2012,Page(s):865 - 875
Cited by: Papers (3)
This paper presents research that uses discrete wavelet transform (DWT) and radial basis neural network for automatic classification. The flow rate of a wet-etching fabrication facility for a single wafer can be analyzed automatically. The electrical signal of a flow meter is collected and decomposed by means of DWT. The signal power of the coefficients processed by the DWT is fed into the radial ...Show More
Chaos-Based Security Solution for Fingerprint Data During Communication and Transmission
Publication Year: 2012,Page(s):876 - 887
Cited by: Papers (65)
In this paper, a security solution during communication and transmission of fingerprint data is proposed in the form of a novel encryption technique based on reversible hidden transform (RHT) and fractional wavelet packet transform (FrWPT). The core idea of the proposed technique is to change the gray values in the spatial domain using RHT followed by the deformation of FrWPT coefficients by singu...Show More
On Practical Implementation and Generalizations of $ \max^{\ast}$ Operator for Turbo and LDPC Decoders
Maurizio Martina;Guido Masera;Stylianos Papaharalabos;P. Takis Mathiopoulos;Fotios Gioulekas
Publication Year: 2012,Page(s):888 - 895
Cited by: Papers (14)
In this paper, we deal with practical implementation issues of the max* operation in generalized form used for decoding of both turbo and low-density-parity-check (LDPC) codes. In particular, first, a unified framework for the so-called generalized max* operation is established, which includes most of the previously published algorithms already known for turbo decoding. Next, the hardware architec...Show More
In order to meet the ever-increasing bandwidth demand of the users, new “digital subscriber line” (DSL) technologies are being developed. In addition to the traditional differential mode of the telephone line, telecom operators are now looking in to the exploitation of the phantom-mode signal. New transmission line models, using the multiconductor transmission lines theory, were developed to suppo...Show More
A Cost-Effective SDR Platform for Performance Characterization of RFID Tags
Luca Catarinucci;Danilo De Donno;Riccardo Colella;Fabio Ricciato;Luciano Tarricone
Publication Year: 2012,Page(s):903 - 911
Cited by: Papers (62)
The rigorous characterization of ultrahigh-frequency passive radio-frequency identification (RFID) tags is a challenging but mandatory task. Indeed, tags are the most critical devices in RFID systems: their performance should be adequately good, although stringent requirements in terms of compactness, used materials, and costs must be satisfied. Factors such as the goodness of the conjugate impeda...Show More
High-Accuracy Amplitude and Phase Measurements for Low-Level RF Systems
Publication Year: 2012,Page(s):912 - 921
Cited by: Papers (12)
This paper presents a detection system for high-accuracy amplitude and phase measurements on RF signals. It is typically used to set up the low-level RF system for particle accelerators. The proposed detector employs the principle of a heterodyne receiver and uses the digital IF architecture with a high oversampling rate to increase the SNR. A discrete Fourier transform-based quadrature demodulato...Show More
Software-Based Resolver-to-Digital Converter for DSP-Based Drives Using an Improved Angle-Tracking Observer
Publication Year: 2012,Page(s):922 - 929
Cited by: Papers (93)
In this paper, a new resolver-to-digital conversion method is presented. This method is based on synchronous demodulation of resolver's output signals. A modified angle-tracking observer is proposed to extract the rotor angle in high speeds as well as in low speeds. An estimation algorithm, which is based on the sign and absolute values of sine and cosine of the rotor angle, is introduced to find ...Show More
Derivation and Design of In-Loop Filters in Phase-Locked Loop Systems
Masoud Karimi-Ghartemani;Sayed Ali Khajehoddin;Praveen K. Jain;Alireza Bakhshai
Publication Year: 2012,Page(s):930 - 940
Cited by: Papers (96)
This paper addresses the concept of in-loop filters in phase-locked loop (PLL) systems. The in-loop filters are derived from an optimization perspective, and an analytical method to design the controlling parameters of a PLL with in-loop filters is also presented. Such filters can also be selected as conventional window functions in which case they can be tuned to reject certain frequency componen...Show More
Taylor–Kalman–Fourier Filters for Instantaneous Oscillating Phasor and Harmonic Estimates
Publication Year: 2012,Page(s):941 - 951
Cited by: Papers (103)
Recently, the $\hbox{Taylor}^{K}$ Kalman filter was proposed for estimating instantaneous oscillating phasors. Its performance was examined through time-domain simulations using the benchmark test signals specified in the IEEE Standard for Synchrophasors for Power Systems. It was discovered that the estimation error level was abruptly reduced by a factor of ten from the second order, mainly becaus...Show More
Estimation of Frequency and Fundamental Power Components Using an Unscented Kalman Filter
Publication Year: 2012,Page(s):952 - 962
Cited by: Papers (52)
In this paper, a new method for the simultaneous estimation of power components and frequency is presented. The method is based on the application of the unscented Kalman filter (UKF), which is an estimator capable of estimating the unknown model parameters during severe dynamic changes in the system. A particular advantage of using the UKF is the straightforward estimation procedure, which does n...Show More
Invariant-Feature-Pattern-Based Form Characterization for the Measurement of Ultraprecision Freeform Surfaces
Publication Year: 2012,Page(s):963 - 973
Cited by: Papers (28)
Ultraprecision freeform surfaces (UPFSs) are increasingly being used in advanced optical systems due to their superior optical properties. However, current research on the measurement of machined UPFSs is still hindered by lack of efficient and robust form characterization techniques which can characterize the form error of measured freeform surfaces with submicrometer accuracy. This paper present...Show More
Cart-Mounted Geolocation System for Unexploded Ordnance With Adaptive ZUPT Assistance
Leilei Li;Yingjun Pan;Jong-Ki Lee;Chunhua Ren;Yu Liu;Dorota A. Grejner-Brzezinska;Charles K. Toth
Publication Year: 2012,Page(s):974 - 979
Cited by: Papers (10)
Reliable and precise navigation technology is essential for robust detection and discrimination of unexploded ordnance (UXO) in a wide range of field conditions, including GPS-challenged environment. Based on the fact that the UXO detection involves frequent stops, this paper proposes an adaptive ZUPT (AZUPT) algorithm in a sliding time window to guarantee the correct identification of the zero ve...Show More
Abrupt Event Monitoring for Water Environment System Based on KPCA and SVM
Publication Year: 2012,Page(s):980 - 989
Cited by: Papers (28)
The abrupt event monitoring is a challenging and critical issue in water environment systems. There are two main different abrupt events in the monitoring system, namely, the emergency water pollution accident and the abrupt sensor fault. The two different abrupt events have similar data characteristics, and few methods can be used to recognize the events. In this paper, a novel abrupt event monit...Show More
Rotational Machine Health Monitoring and Fault Detection Using EMD-Based Acoustic Emission Feature Quantification
Publication Year: 2012,Page(s):990 - 1001
Acoustic emission (AE)-signal-based techniques have recently been attracting researchers' attention to rotational machine health monitoring and diagnostics due to the advantages of the AE signals over the extensively used vibration signals. Unlike vibration-based methods, the AE-based techniques are in their infant stage of development. From the perspective of machine health monitoring and fault d...Show More
An Adaptive Low-Cost Tester Architecture Supporting Embedded Memory Volume Diagnosis
Publication Year: 2012,Page(s):1002 - 1018
This paper describes the working principle and an implementation of a low-cost tester architecture supporting volume test and diagnosis of built-in self-test (BIST)-assisted embedded memory cores. The described tester architecture autonomously executes a diagnosis-oriented test program, adapting the stimuli at run-time, based on the collected test results. In order to effectively allow the tester ...Show More
Accurate Measurement of Surface Grid Intersections From Close-Range Video Sequences
Publication Year: 2012,Page(s):1019 - 1028
Cited by: Papers (6)
A novel approach for high-speed measurement of surface grid line intersection points across multiple video frames is described. Grids are printed or etched onto otherwise featureless surfaces for applications that include 3-D surface reconstruction, sheet metal surface strain measurement, and others. To achieve the necessary subpixel location accuracy, close-range imaging is used with data collect...Show More
Comparative Study of Multivariate Methods to Identify Paper Finishes Using Infrared Spectroscopy
Publication Year: 2012,Page(s):1029 - 1036
Cited by: Papers (48)
Recycled paper is extensively used worldwide. In the last decades, its market has expanded considerably. The increasing use of recycled paper in papermaking has led to the production of paper containing several types of impurities. Consequently, wastepaper mills are forced to implement quality control schemes for evaluating the incoming wastepaper stock, thus guarantying the specifications of the ...Show More
Two-Iris Method for the Electromagnetic Characterization of Conductor-Backed Absorbing Materials Using an Open-Ended Waveguide Probe
Publication Year: 2012,Page(s):1037 - 1044
Cited by: Papers (19)
A two-iris waveguide-probe technique is introduced for measuring the electromagnetic properties of a lossy conductor-backed material layer. A flanged open-ended rectangular waveguide is applied to the material under test, and the reflected signal is measured under two conditions. The reflection is first measured when the aperture of the waveguide is unobstructed; then, the reflection is measured w...Show More
An Accurate and Generalized Approach to Plaque Characterization in 346 Carotid Ultrasound Scans
U. Rajendra Acharya;Oliver Faust;S. Vinitha Sree;Filippo Molinari;Luca Saba;Andrew Nicolaides;Jasjit S. Suri
Publication Year: 2012,Page(s):1045 - 1053
Cited by: Papers (71)
Computer-aided diagnosis (CAD) of carotid atherosclerosis into symptomatic or asymptomatic is useful in the analysis of cardiac health. This paper describes a patented CAD system called Atheromatic™ for symptomatic versus asymptomatic plaque classification in carotid ultrasound images. The system involves two steps: 1) feature extraction using a combination of discrete wavelet transform and averag...Show More
Hypothesis Validation of Far-Wall Brightness in Carotid-Artery Ultrasound for Feature-Based IMT Measurement Using a Combination of Level-Set Segmentation and Registration
Filippo Molinari;Ganapathy Krishnamurthi;U. Rajendra Acharya;S. Vinitha Sree;Guang Zeng;Luca Saba;Andrew Nicolaides;Jasjit S. Suri
Publication Year: 2012,Page(s):1054 - 1063
Cited by: Papers (39)
Intima-media thickness (IMT) is now being considered as an indicator of atherosclerosis. Our group has developed several feature-based IMT measurement algorithms such as the Completely Automated Layer EXtraction (CALEX) (which is a class of patented AtheroEdge Systems from Global Biomedical Technologies, Inc., CA, USA). These methods are based on the hypothesis that the highest pixel intensities a...Show More
Hypothesis Validation of Far-Wall Brightness in Carotid-Artery Ultrasound for Feature-Based IMT Measurement Using a Combination of Level-Set Segmentation and Registration
Filippo Molinari;Ganapathy Krishnamurthi;U. Rajendra Acharya;S. Vinitha Sree;Guang Zeng;Luca Saba;Andrew Nicolaides;Jasjit S. Suri
Year: 2012 | Volume: 61 | Issue: 4
Development and Application of High-Frequency Sensor for Corona Current Measurement under Ultra High-Voltage Direct-Current Environment
Haiwen Yuan;Qinghua Yang;Yuanqing Liu;Jiayu Lu;Siddiqui Aamir Akhtar
Publication Year: 2012,Page(s):1064 - 1071
Cited by: Papers (25)
Corona current measurement is essential for research into corona discharge under ultra high-voltage direct-current (HVDC) environment. The sensor is extremely important due to the small (microampere) amplitude of the corona current and the wide (dc to tens of megahertz) range in frequency. In this paper, a high-frequency sensor is described, and its application is introduced for accurate measureme...Show More
Method to Determine the Ratio Error of DC High-Voltage Dividers
Publication Year: 2012,Page(s):1072 - 1078
Cited by: Papers (9)
This paper introduces a method called the “dc voltage summation method” for determining the ratio change of dc high-voltage dividers with the applied voltage. Two auxiliary voltage dividers with the same rated voltage U were used to calibrate the voltage divider with rated voltage 2U. Experimental results showed that the measurement uncertainty of the method can achieve 1 mV/kV at an applied volta...Show More
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