Concept
Frequency drift
Publications associées (23)
A Maximum-Likelihood-Based Two-User Receiver for LoRa Chirp Spread-Spectrum Modulation
Andreas Peter Burg, Alexios Konstantinos Balatsoukas Stimming, Orion Afisiadis, Joachim Tobias Tapparel, Mathieu Pierre Xhonneux
Long Range (LoRa) is an emerging low-power wide-area network technology offering long-range wireless connectivity to Internet of Things (IoT) devices. For energy efficiency reasons, LoRa end nodes implement a nonslotted ALOHA multiple access scheme to tran ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Development of Lamb wave resonators in thin film X-cut lithium niobate
Microelectromechanical systems (MEMS) is among the most revolutionary technologies of 21st century, with the applications ranging from industrial systems to consumer electronics. Using MEMS in battery-powered wireless devices has long been seen as the evol ...
EPFL2021Evidence of Smaller 1/F Noise in AlScN-Based Oscillators Compared to AlN-Based Oscillators
Luis Guillermo Villanueva Torrijo, Marco Liffredo, Andrea Lozzi
In this paper we investigate the direct effect of resonator quality factor (Q) on the oscillator phase noise. We use 2-port contour mode resonators (CMRs), fabricated both with aluminum nitride (AlN) and aluminum scandium nitride (AlScN), as the frequency- ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020Ultralow-noise photonic microwave synthesis using a soliton microcomb-based transfer oscillator
Tobias Kippenberg, Erwan Guillaume Albert Lucas
The synthesis of ultralow-noise microwaves is of both scientific and technological relevance for timing, metrology, communications and radio-astronomy. Today, the lowest reported phase noise signals are obtained via optical frequency-division using mode-lo ...
NATURE PUBLISHING GROUP2020VO2 oscillators coupling for Neuromorphic Computation
Mihai Adrian Ionescu, Igor Stolichnov, Kirsten Emilie Moselund, Siegfried Karg, Elisabetta Corti
New computation schemes inspired by biological processes can outperform standard von-Neumann architectures in dealing with complex and unstructured tasks. As a new approach, systems of frequency-locked, coupled oscillators are investigated using the phase ...
IEEE2019Resistive Coupled VO2 Oscillators for Image Recognition
Mihai Adrian Ionescu, Igor Stolichnov, Kirsten Emilie Moselund, Siegfried Karg, Elisabetta Corti
Oscillator networks are known for their interesting collective behavior such as frequency locking, phase locking, and synchronization. Compared to other artificial neural network implementations, timing rather than amplitude information is used for computa ...
IEEE2019Ultra-low noise microwave signal generation with an optical frequency comb
Photonic synthesis of radio frequency waveforms revived the quest for unrivalled microwave purity by its seducing ability to convey the benefits of the optics to the microwave world. In this contribution, we will present a high-fidelity transfer of frequen ...
SPIE-INT SOC OPTICAL ENGINEERING2018Mutually Coupled Time-to-Digital Converters (TDCs) for Direct Time-of-Flight (dTOF) Image Sensors
Edoardo Charbon, Preethi Padmanabhan, Augusto Ronchini Ximenes
Direct time-of-flight (dTOF) image sensors require accurate and robust timing references for precise depth calculation. On-chip timing references are well-known and understood, but for imaging systems where several thousands of pixels require seamless refe ...
2018Resistive coupled VO2 oscillators for image recognition
Mihai Adrian Ionescu, Igor Stolichnov, Kirsten Emilie Moselund, Siegfried Karg, Elisabetta Corti
Oscillator networks are known for their interesting collective behavior such as frequency locking, phase locking, and synchronization. Compared to other artificial neural network implementations, timing rather than amplitude information is used for computa ...
IEEE2018Ultra Low Power FM-UWB Transceiver for High-Density Wireless Sensor Networks
The WiseSkin project aims to provide a non-invasive solution for restoration of a natural sense of touch to persons using prosthetic limbs. By embedding sensor nodes into the silicone coating of the prosthesis, which acts as a sensory skin, WiseSkin target ...
EPFL2018