Proceedings 2007 IEEE SoutheastCon最新文献_第4页

A stepper motor and serial communication interface daughter board for educational use 一种教育用步进电机和串行通信接口子板

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342911

G. Athalye, V. Dronamraju, J. Conrad

引用次数: 3

A high speed dynamic power supply current sensor 一种高速动态电源电流传感器

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342997

J. Roberts, A. Eastridge, D. Binkley, S. Thomas, R. Makki

引用次数: 0

Effect of change in pole shape design on harmonic contents of PM synchronous motor air gap flux density waveform 磁极形状设计变化对永磁同步电机气隙磁通密度波形谐波含量的影响

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342932

O. Mohammed, S. Ganu, N. Abed

引用次数: 0

Network attacks and countermeasures 网络攻击与对策

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342880

Y. Hu

引用次数: 2

Secure multicast in various scenarios of WirelessMAN 无线城域网各种场景下的安全组播

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342992

Sen Xu, Chin-Tser Huang, M. Matthews

引用次数: 8

Characterization of printer banding in regions of complex image content 复杂图像内容区域的打印机带特征

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342940

N.A. Rawashdeh, O. Martinez, M. Quiroga, K. D. Donohue

{"title":"Characterization of printer banding in regions of complex image content","authors":"N.A. Rawashdeh, O. Martinez, M. Quiroga, K. D. Donohue","doi":"10.1109/SECON.2007.342940","DOIUrl":"https://doi.org/10.1109/SECON.2007.342940","url":null,"abstract":"This paper presents algorithms for estimating parameters that characterize weak levels of printer banding in complex images. Flat field test images are typically used as test patterns for banding evaluation; however, the images of this study contain complex image content to demonstrate the algorithm's robustness and extend the utility of these defect characterization methods. The test images are from color printers in the development phase and include multiple visible defects such as banding, grain, and streaking. The banding characterization includes an estimation of the fundamental frequency and average power extracted from local regions dominated by low frequency content where banding is likely to be most visible and offensive. Grain and mottle defects combined with other image content form a difficult noise environment from which the quasi-periodic banding characteristics must be extracted. The algorithm is based on the autocorrelation function and uses special averaging and a pre-whitening filter designed to minimize the influence of the interfering factors. Experimental results show that this method provides accurate banding frequency and power characterization even for multiple banding sequences that are present in the image test area. This new algorithm proves computationally efficient and more accurate than parameter estimates based on frequency domain analysis using the power spectrum. Experimental results show accurate banding characterizations for periods ranging between 0.93 and 10.5 mm over a range of banding-to-noise ratios from 5.5 to -6.5 dB.","PeriodicalId":423683,"journal":{"name":"Proceedings 2007 IEEE SoutheastCon","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114867105","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: 1

Polygraph realization for data visualization and analysis 测谎仪实现的数据可视化和分析

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342934

H. Watson, M. Heimer, J. Andrian, A. Barreto

引用次数: 0

Nonlinear dynamic system model of bipolar mood disorder 双相情感障碍的非线性动态系统模型

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342902

M. Mohan, Sen. Mem

引用次数: 6

Audio signal delay estimation using partial whitening 利用部分白化估计音频信号延迟

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342946

K. D. Donohue, A. Agrinsoni, J. Hannemann

{"title":"Audio signal delay estimation using partial whitening","authors":"K. D. Donohue, A. Agrinsoni, J. Hannemann","doi":"10.1109/SECON.2007.342946","DOIUrl":"https://doi.org/10.1109/SECON.2007.342946","url":null,"abstract":"This work examines time and frequency domain implementations for estimating delays between acoustic signals arriving at spatially distributed microphones. A parametric variant of the phase-only transform (PHAT) is introduced for partially whitening the signal before estimating the delay. The PHAT variant is referred to as the PHAT-beta and is shown to be advantageous when processing signals corrupted by both independent noise and reverberation effects. Simulations show superior performance for the time-domain implementation under conditions of independent noise for time-limited broadband signals, achieving low estimation errors at signal-to-noise ratios 8 to 13 dB lower than that required for a frequency-domain implementation. Extensive Monte Carlo simulations are also performed for the time-domain delay estimator using the PHAT-beta on speech signals corrupted by reverberation and independent noise. Performance metrics include percent anomalous detections as well as the root mean square estimation error. Results show that partial whitening leads to significant improvements over zero or total whitening (as in the case of the standard PHAT). Simulations indicate that robust performance can be achieved for beta values near 0.4 when both reverberations and independent noises are present.","PeriodicalId":423683,"journal":{"name":"Proceedings 2007 IEEE SoutheastCon","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122813161","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: 10

The layer theory approach applied to induction heating systems with rotational symmetry 层理论方法在旋转对称感应加热系统中的应用

Proceedings 2007 IEEE SoutheastCon Pub Date : 2007-03-22 DOI: 10.1109/SECON.2007.342937

L.J. Bunni, K. Altaii

引用次数: 3