2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings最新文献_第2页

An extended hybrid stepper motor electrical model for sensorless drives 无传感器驱动的扩展混合式步进电机电气模型

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229555

M. Butcher, A. Masi, J. Olivieri

引用次数: 4

A fiber optical thermometer for high power transformer monitoring utilizing the thermo-optical phase transition of VO2 一种利用VO2热光相变监测大功率变压器的光纤温度计

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229444

L. C. de Lima, L. F. Schelp, L. C. Oliveira, A. Neto, A. Lima, H. Neff

引用次数: 2

Results on the Power Quality of French and Italian 2×25 kV 50 Hz railways 法国和意大利2×25 kV 50hz铁路电能质量的结果

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229341

A. Mariscotti

引用次数: 22

Implementation of a least-squares multi-harmonic fitting algorithm in the multicore cell processor 多核单元处理器中最小二乘多谐拟合算法的实现

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229135

José Maria Santos, P. Ramos

引用次数: 1

Evaluation of the reverberant environment of carbon-fiber composite airframes 碳纤维复合材料机体混响环境评价

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229242

B. Cordill, S. A. Seguin, M. Ewing

引用次数: 1

An integrated receiver channel for a laser scanner 用于激光扫描仪的集成接收通道

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229159

S. Kurtti, J. Kostamovaara

引用次数: 14

Analog IQ impairments in Zero-IF radar receivers: Analysis, measurements and digital compensation 零中频雷达接收机的模拟IQ损伤:分析、测量和数字补偿

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229222

G. Vallant, M. Epp, W. Schlecker, U. Schneider, L. Anttila, M. Valkama

{"title":"Analog IQ impairments in Zero-IF radar receivers: Analysis, measurements and digital compensation","authors":"G. Vallant, M. Epp, W. Schlecker, U. Schneider, L. Anttila, M. Valkama","doi":"10.1109/I2MTC.2012.6229222","DOIUrl":"https://doi.org/10.1109/I2MTC.2012.6229222","url":null,"abstract":"We address the Zero-IF or homodyne radio architecture as a pursuable way for small Radar receivers. While Zero-IF is beneficial for integration, several inherent analog impairments place a limit on the achievable dynamic range. The most dominant non-idealities are gain and phase imbalance in the IQ branches, mixer nonlinearity, and DC Offset. In the case of IQ Imbalance, careful receiver design can at best achieve an Image Rejection Ratio (IRR) of 30-40 dB. Also, IQ imbalance tends to be frequency-dependent with increasing bandwidth (BW). It has to be investigated, whether sophisticated digital post-processing is able to deliver a dynamic range sufficient for Pulse-Doppler Radar. After establishing some theoretical background and proposing digital correction methods, we will present hardware measurements of frequency-dependent IQ imbalance made on a Zero-IF receiver with large bandwidth. Despite significant improvements can be achieved using an offline calibration, time-varying drifts due to temperature changes will degrade the achievable IRR. Therefore adaptive circularity-based algorithms should be applied to track those changes. However, Radar Chirp signals at complex baseband (BB) cannot be used directly, as they are not circular. To restore the circularity for estimating the Complementary Autocorrelation Function (CACF), we propose applying a digital band-stop to the operational data beforehand. Highly increased IRR values are technically feasible: Digital Assistance acting jointly with state-of-the-art RF circuit design can pave the way for adequate performance in integrated receiver solutions.","PeriodicalId":387839,"journal":{"name":"2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124761087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Parameter reduction of MISO Wiener-Schetzen models using the best linear approximation 使用最佳线性逼近的MISO Wiener-Schetzen模型的参数缩减

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229321

K. Tiels, P. Heuberger, J. Schoukens

{"title":"Parameter reduction of MISO Wiener-Schetzen models using the best linear approximation","authors":"K. Tiels, P. Heuberger, J. Schoukens","doi":"10.1109/I2MTC.2012.6229321","DOIUrl":"https://doi.org/10.1109/I2MTC.2012.6229321","url":null,"abstract":"This paper concerns the identification of MISO (multiple inputs single output) Wiener systems. For each input-output path, the linear dynamics are modeled by a set of orthonormal basis functions (OBFs). The static nonlinearity is modeled through a multivariate polynomial. The parameters of the model are the coefficients of this polynomial. In this paper, an identification procedure for SISO (single input single output) Wiener systems is extended towards MISO Wiener systems. The poles of the OBFs are estimated using an extension of the best linear approximation (BLA) towards MIMO (multiple input multiple output) systems. As the number of parameters can increase significantly compared to the SISO case, a parameter reduction step, first developed for the SISO case, is extended in this paper to the MISO case. In each set of OBFs, one OBF is replaced by the BLA of the input-output path corresponding to that set. It is shown that in this way the number of relevantly contributing terms in the multivariate polynomial is significantly reduced. Simulation results show a major reduction of the number of parameters, with only a minor increase in the rms error on the simulated output.","PeriodicalId":387839,"journal":{"name":"2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129468447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

An innovative processing method for high resolution borehole density images 一种创新的高分辨率井眼密度图像处理方法

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229337

Jing Li, David Kennedy, Rick Lee, Paul Boonen, Mike Dawber, Joseph L. Hollmann

引用次数: 0

Instrumentation and control of a high power BLDC motor for small vehicle applications 用于小型车辆的大功率无刷直流电机的仪表和控制

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings Pub Date : 2012-05-13 DOI: 10.1109/I2MTC.2012.6229466

A. Rowe, G. Sen Gupta, S. Demidenko

{"title":"Instrumentation and control of a high power BLDC motor for small vehicle applications","authors":"A. Rowe, G. Sen Gupta, S. Demidenko","doi":"10.1109/I2MTC.2012.6229466","DOIUrl":"https://doi.org/10.1109/I2MTC.2012.6229466","url":null,"abstract":"Brushless DC (BLDC) motors are becoming an increasingly popular motor of choice for low powered vehicles such as mopeds, power assisted bicycles, mobility scooters, and in this reported application, motorised mountain boards. With rapid developments in technology, high energy density batteries such as Lithium-ion Polymer batteries are becoming more affordable and highly suitable for such vehicles due to the superior charge rate and light weight of the lithium chemistry batteries. This combined with the high power, light weight, and low cost BLDC motor results in the BLDC motor being a very favourable solution over an internal combustion engine for low power vehicles with power requirements of up to 7kW. A BLDC motor controller was developed specifically for the motorised mountain board application. The motor controller is a sensored BLDC motor controller which takes inputs from Hall Effect sensors to determine the rotor position. Many other sensors are used to monitor the variables that are critical to the operation of the motor controller such as the motor phase current, battery voltage, motor temperature, and transistor temperature. The reported system is further enhanced by several additional features such as output for an LCD screen, regenerative braking, timing advance, cruise control, and soft start functions. These topics are discussed briefly in this paper.","PeriodicalId":387839,"journal":{"name":"2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130521039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12