Results 61 to 70 of about 107,562 (201)
Wind Energy, Volume 29, Issue 10, October 2026.ABSTRACT To reduce the need for scheduled wind turbine blade inspections and large‐scale repairs, a novel distributed acoustic sensing system for monitoring the structural health of wind turbine blades is proposed. This integral passive monitoring system utilizes a sparse array of in‐blade multimodal sensors and a single blade‐external downtower sensor,
Connor Pozzi +5 more
wiley +1 more source
Benefits of Waveform Relaxation Method and Output Space Mapping for the Optimization of Multirate Systems [PDF]
, 2014 We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system.
CLENET, Stephane +3 more
core +1 more source
Aspects of Radar Imaging Using Frequency-Stepped Chirp Signals
EURASIP Journal on Advances in Signal Processing, 2006 The high-resolution, frequency-stepped chirp signal can be applied to radar systems employing narrow-bandwidth chirp pulses, in order to enhance the range resolution, and to implement SAR/ISAR imaging capabilities.
Jin Ya-Qiu, Zhang Qun
doaj +1 more source
IEEE Photonics Journal, 2019 A chirp-rate-tunable microwave photonic pulse compression system for multi-octave linearly chirped microwave waveform (LCMW) is proposed in this paper. The key components are a dual-parallel Mach–Zehnder modulator (DPMZM) and a dispersive loop (DL)
Chunqi Song +5 more
doaj +1 more source
SAR Waveform Diversity Using PN-Sequence and Its Optimization With Genetic Algorithm
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingWaveform diversity is an important technique to suppress range ambiguities and extend the observation coverage of synthetic aperture radar (SAR) without sacrificing spatial resolution and power consumption.
Raito Suzuki, Akira Hirose, Ryo Natsuaki
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Microbursts are thought to be a key contributor to radiation belt electron loss, with chorus waves considered a primary driver of this precipitation. However, the conditions under which chorus waves produce MeV electron loss remain poorly constrained.
Jorge Romero‐Minaya +3 more
wiley +1 more source
A TOPSAR Processing Algorithm Based on Extended Chirp Scaling: Evaluation with TerraSAR-X Data [PDF]
, 2008 This paper presents an efficient phase preserving processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode. TOPS has been proposed as a new wide swath imaging mode, which solves the problems of scalloping and azimuth-varying ...
Meta, Adriano +5 more
core
Chorus Element Repetition: Roles of Energetic Electron Injection and Nonlinear Wave Growth
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Chorus waves are coherent whistler‐mode emissions in Earth’s magnetosphere and play a key role in the acceleration and loss of radiation belt electrons. Their spectra commonly consist of discrete and repetitive elements, yet the mechanism governing this repetition is not fully understood.
Huayue Chen +5 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 17, 11 September 2026.A unified fiber‐wireless integrated sensing and communication system is enabled by a single microwave photonic platform with a time‐phase synthesis dimension waveform. This architecture simultaneously delivers high‐speed data transmission, high‐precision wireless ranging, and accurate fiber diagnostics over a high‐power analog radio‐over‐fiber link ...
Shengkun Chen +9 more
wiley +1 more source
IEEE Access, 2017 This paper discusses a new waveform synthesis technique particularly suitable for low altitude ultra-wideband (UWB) synthetic aperture radar (SAR) systems.
Ming Yam Chua +3 more
doaj +1 more source