Evaluating Time Occupancy and Time-Scales in Interference Testing with Pulse-Modulated Noise [0.03%]
脉冲调制噪声干扰试验的占用度及时间尺度评估
Michelle Pirrone,Aric Sanders,Adam Wunderlich
Michelle Pirrone
We present experimental results investigating the utility of pulse-modulated noise (PMN) for general-purpose, systematic interference testing. Time-domain interference vulnerabilities are examined by modifying the PMN duty cycle, which cont...
Assessing Directional Time-Dependent Interference Vulnerabilities in Closed-Box Wireless Systems [0.03%]
封闭无线环境中的定向时变干扰脆弱点评估方法研究
Michelle Pirrone,Jordan Bernhardt,Adam Wunderlich
Michelle Pirrone
A general-purpose methodology to assess time-dependent interference vulnerabilities is demonstrated with two different consumer off-the-shelf (COTS), closed-box wireless systems at both the source (data payload origin) and destination (data...
Measurement of Ambient Magnetic Field Noise for Through-the-Earth (TTE) Communications and Historical Comparisons [0.03%]
地球穿越(TTE)通信中的环境磁场噪声测量及历史比较
Chenming Zhou,David P Snyder,Benjamin Epstein et al.
Chenming Zhou et al.
Recent results of low-frequency (
Maria G Becker,Michael Frey,Sarah Streett et al.
Maria G Becker et al.
When reverberation chambers are loaded to increase the coherence bandwidth for modulated-signal measurements, a secondary effect is decreased spatial uniformity. We show that an appropriate choice of stirring sequence, consisting of a combi...
Characterizing the 2.4 GHz Spectrum in a Hospital Environment: Modeling and Applicability to Coexistence Testing of Medical Devices [0.03%]
医院环境中2.4GHz频谱的特征研究：建模及其在医疗设备共存测试中的应用
Mohamad Omar Al Kalaa,Walid Balid,Hazem H Refai et al.
Mohamad Omar Al Kalaa et al.
The increasing use of shared, unlicensed spectrum bands by medical devices and nonmedical products highlights the need to address wireless coexistence to ensure medical device safety and effectiveness. This paper provides the first step to ...
Estimating the Likelihood of Wireless Coexistence Using Logistic Regression: Emphasis on Medical Devices [0.03%]
使用逻辑回归估算无线共存的概率：侧重医疗器械
Mohamad Omar Al Kalaa,Seth J Seidman,Hazem H Refai
Mohamad Omar Al Kalaa
Medical device manufacturers incorporate wireless technology in their designs to offer convenience and agility to both patients and caregivers. However, the use of unlicensed radio spectrum bands by both medical devices and other equipment ...
5 GHz Band LTE-LAA Signal Selection for Use as the Unintended Signal in ANSI C63.27 Wireless Coexistence Testing [0.03%]
5GHz频段LTE-LAA信号选择用于ANSI C63.27无线共存测试中的非预期发射机信号
Mohamad Omar Al Kalaa,Seth J Seidman
Mohamad Omar Al Kalaa
This article details the experimental work conducted at the Electromagnetic Compatibility and Wireless Laboratory, U.S. Food and Drug Administration, to investigate the use of LAA signals for wireless coexistence testing. A software defined...
Machine learning-based prediction of MRI-induced power absorption in the tissue in patients with simplified deep brain stimulation lead models [0.03%]
基于机器学习的简化的深部脑刺激电极模型的MRI诱导组织中吸收功率预测方法
Jasmine Vu,Bach T Nguyen,Bhumi Bhusal et al.
Jasmine Vu et al.
Interaction of an active electronic implant such as a deep brain stimulation (DBS) system and MRI RF fields can induce excessive tissue heating, limiting MRI accessibility. Efforts to quantify RF heating mostly rely on electromagnetic (EM) ...
Numerical simulation of the radiofrequency safety of 128-channel hd-EEG nets on a 29-month-old whole-body model in a 3 Tesla MRI [0.03%]
128通道HD-EEG网在3特斯拉MRI中对29月龄全身模型的射频安全性的数值模拟研究
Hongbae Jeong,Georgios Ntolkeras,P Ellen Grant et al.
Hongbae Jeong et al.
This study investigates the radiofrequency (RF) induced heating in a pediatric whole-body voxel model with a high-density electroencephalogram (hd-EEG) net during magnetic resonance imaging (MRI) at 3 Tesla. A total of three cases were stud...
A Significance Test for Reverberation-Chamber Measurement Uncertainty in Total Radiated Power of Wireless Devices [0.03%]
用于无线设备全辐射功率的混响室测量不确定度的意义检验方法研究
Kate A Remley,Chih-Ming Wang,Dylan F Williams et al.
Kate A Remley et al.
We develop a significance test that determines whether the component of uncertainty due to the finite number of stepped mode-stirring samples or the component due to the lack of spatial uniformity dominates for a particular chamber set-up a...