Jac Romme
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View article: Analysis and Compensation of Phase Noise in FMCW LiDAR Sensors
Analysis and Compensation of Phase Noise in FMCW LiDAR Sensors Open
View article: Accurate and Efficient Time-Domain Model for Generic Wireless Power Rectennas
Accurate and Efficient Time-Domain Model for Generic Wireless Power Rectennas Open
The efficiency of an energy receiver of a Wireless Power Transfer (WPT) system is intricately influenced by many factors such as frequency, power, topology, and the parameters of the rectifying diode. Developing an efficient and accurate m…
View article: High Accuracy Localization for Miniature Ingestible Devices Using Mutual Inductance
High Accuracy Localization for Miniature Ingestible Devices Using Mutual Inductance Open
This article demonstrates an inductively coupled high-accuracy localization system for miniature ingestible devices. It utilizes an inductance double capacitances-series capacitance (LCC-S) compensation architecture that enables mutual ind…
View article: Noise-Based Threshold Ranging Method Using Region-of-Interest in UWB Signals
Noise-Based Threshold Ranging Method Using Region-of-Interest in UWB Signals Open
Ultrawideband (UWB) ranging algorithms using thresholding require careful settings that account for multipath richness. Max-peak ratio thresholds are incapable of detecting attenuated first path components (FPCs) or risk triggering on nois…
View article: An Energy-Efficient and High-Data-Rate IR-UWB Transmitter for Intracortical Neural Sensing Interfaces
An Energy-Efficient and High-Data-Rate IR-UWB Transmitter for Intracortical Neural Sensing Interfaces Open
This paper presents an implantable impulse-radio ultra-wideband (IR-UWB) wireless telemetry system for intracortical neural sensing interfaces. A 3-dimensional (3-D) hybrid impulse modulation that comprises phase shift keying (PSK), pulse …
View article: Phase-based Ranging in Narrowband Systems with Missing/Interfered Tones
Phase-based Ranging in Narrowband Systems with Missing/Interfered Tones Open
The growth in the number of low-cost narrow band radios such as Bluetooth low energy (BLE) enabled applications such as asset tracking, human behavior monitoring, and keyless entry. The accurate range estimation is a must in such applicati…
View article: A 1.66Gb/s and 5.8pJ/b Transcutaneous IR-UWB Telemetry System with Hybrid Impulse Modulation for Intracortical Brain-Computer Interfaces
A 1.66Gb/s and 5.8pJ/b Transcutaneous IR-UWB Telemetry System with Hybrid Impulse Modulation for Intracortical Brain-Computer Interfaces Open
Intra-cortical extracellular neural sensing is being rapidly and widely applied in several clinical research and brain-computer interfaces (BCIs), as the number of sensing channels continues to double every 6 years. By distributing multipl…
View article: Multistatic UWB Radar-Based Passive Human Tracking Using COTS Devices
Multistatic UWB Radar-Based Passive Human Tracking Using COTS Devices Open
Due to its high delay resolution, the ultra-wideband (UWB) technique has been widely adopted for fine-grained indoor localization. Instead of active positioning, UWB radar-based passive human tracking is explored using commercial off-the-s…
View article: Device-Free Pedestrian Tracking Using Low-Cost Ultrawideband Devices
Device-Free Pedestrian Tracking Using Low-Cost Ultrawideband Devices Open
Ultrawideband (UWB) attracts extensive attention for the Internet-of-Things applications, especially the fine-grained location-based services. Rather than active tracking, this article explores the UWB-based device-free pedestrian tracking…
View article: Analytical Optimal Load Calculation of RF Energy Rectifiers Based on a Simplified Rectifying Model
Analytical Optimal Load Calculation of RF Energy Rectifiers Based on a Simplified Rectifying Model Open
Wireless power transfer (WPT) is an essential enabler for novel sensor networks such as the wireless powered communication network (WPCN). The efficiency of an energy rectifier is dependent on both input power and loading condition. In thi…
View article: Delay Estimation for Ranging and Localization Using Multiband Channel State Information
Delay Estimation for Ranging and Localization Using Multiband Channel State Information Open
In wireless networks, an essential step for precise range-based localization is the high-resolution estimation of multipath channel delays. The resolution of traditional delay estimation algorithms is inversely proportional to the bandwidt…
View article: Secure, Accurate, and Practical Narrow-Band Ranging System
Secure, Accurate, and Practical Narrow-Band Ranging System Open
Relay attacks pose a serious security threat to wireless systems, such as, contactless payment systems, keyless entry systems, or smart access control systems. Distance bounding protocols, which allow an entity to not only authenticate ano…
View article: Analysis of Multipath Channel Delay Estimation Using Subspace Fitting
Analysis of Multipath Channel Delay Estimation Using Subspace Fitting Open
The presence of rich scattering in indoor and urban radio propagation scenarios may cause a high arrival density of multipath components (MPCs). Often the MPCs arrive in clusters at the receiver, where MPCs within one cluster have similar …
View article: Reference-Free Calibration in Sensor Networks
Reference-Free Calibration in Sensor Networks Open
Sensor calibration is one of the fundamental challenges in large-scale IoT networks. In this article, we address the challenge of reference-free calibration of a densely deployed sensor network. Conventionally, to calibrate an in-place sen…