Results 21 to 30 of about 6,349 (294)

Detecting the Presence of Intrusive Drilling in Secure Transport Containers Using Non-Contact Millimeter-Wave Radar

open access: yesSensors, 2022
We employ a 77–81 GHz frequency-modulated continuous-wave (FMCW) millimeter-wave radar to sense anomalous vibrations during vehicle transport at highway speeds for the first time.
Samuel Wagner   +2 more
doaj   +1 more source

Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis [PDF]

open access: yes, 2009
The paper presents a new concept in antenna design, whereby a photo-imageable thick-film process is used to integrate a waveguide antenna within a multilayer structure. This has yielded a very compact, high performance antenna working at high millimeter-
Izqueirdo, B   +9 more
core   +1 more source

Water Surface Acoustic Wave Detection by a Millimeter Wave Radar

open access: yesRemote Sensing, 2022
Feature extraction and recognition of underwater targets are important in military and civilian areas. This paper studied water surface acoustic wave (WSAW) detection by a millimeter wave (mmWave) radar. The mmWave-based endpoint detection method of the WSAW was introduced. Simulated results show that the continuous wavelet transform (CWT) method has a
Yuming Zeng, Siyi Shen, Zhiwei Xu 0003
openaire   +2 more sources

Developments in target micro-doppler signatures analysis: radar imaging, ultrasound and through-the-wall radar [PDF]

open access: yes, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Soraghan, J. J.   +5 more
core   +1 more source

Automotive Radar — From First Efforts to Future Systems

open access: yesIEEE Journal of Microwaves, 2021
Although the beginning of research on automotive radar sensors goes back to the 1960s, automotive radar has remained one of the main drivers of innovation in millimeter wave technology over the past two decades.
Christian Waldschmidt   +2 more
doaj   +1 more source

Millimeter-Wave Phased Arrays in Silicon [PDF]

open access: yes, 2007
Integration of mm-wave multiple-antenna systems on silicon-based processes enables complex, low-cost systems for high-frequency communication and sensing applications.
Natarajan, Arun Sridhar
core   +1 more source

Design of a Millimeter-Wave Radar Remote Monitoring System for the Elderly Living Alone Using WIFI Communication

open access: yesSensors, 2021
In response to the current demand for the remote monitoring of older people living alone, a non-contact human vital signs monitoring system based on millimeter wave radar has gradually become the object of research. This paper mainly carried out research
Kai Guo   +5 more
doaj   +1 more source

Mutual Interference Mitigation of Millimeter-Wave Radar Based on Variational Mode Decomposition and Signal Reconstruction

open access: yes, 2023
As an important remote sensing technology, millimeter-wave radar is used for environmental sensing in many fields due to its advantages of all-day, all-weather operation.
Bo Feng   +5 more
core   +1 more source

Use of a portable topographic mapping millimetre wave radar at an active lava flow. [PDF]

open access: yes, 2006
A ground-based millimetre wave radar, AVTIS (All-weather Volcano Topography Imaging Sensor), has been developed for topographic monitoring. The instrument is portable and capable of measurements over ranges up to ∼7 km through cloud and at night.
James, M R   +9 more
core   +1 more source

A Novel Method for Improving Point Cloud Accuracy in Automotive Radar Object Recognition

open access: yesIEEE Access, 2023
High-quality environmental perceptions are crucial for self-driving cars. Integrating multiple sensors is the predominant research direction for enhancing the accuracy and resilience of autonomous driving systems.
Guowei Lu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy