Results 111 to 120 of about 18,380 (225)

Doppler radar with multiphase modulation of transmitted and reflected signal [PDF]

, 1989
A microwave radar signal is generated and split by a circulator. A phase shifter introduces a series of phase shifts into a first part of the split signal which is then transmitted by antenna.
Griffin, John W., Kobayashi, Herbert S., Shores, Paul W.   +2 more
core   +1 more source

Micro Doppler Reconstruction From Discontinuous Observations Based on Gapped SBL-FBTVAR Method for Spin Stabilized Object

IEEE Access, 2019
Micro Doppler analysis of spin stabilized objects is of a great significance for attitude estimation and recognition of space targets. In practice, the radar cannot dwell on one target in a long interval continuously.
Ling Hong, Fengzhou Dai, Xili Wang
doaj   +1 more source

Pedestrian Detection in Blind Area and Motion Classification Based on Rush-Out Risk Using Micro-Doppler Radar. [PDF]

Sensors (Basel), 2021
Hayashi S, Saho K, Isobe D, Masugi M.
europepmc   +1 more source

Utilization of Micro-Doppler Radar to Classify Gait Patterns of Young and Elderly Adults: An Approach Using a Long Short-Term Memory Network. [PDF]

Sensors (Basel), 2021
Hayashi S, Saho K, Shioiri K, Fujimoto M, Masugi M.   +4 more
europepmc   +1 more source

Radar-based Feature Design and Multiclass Classification for Road User Recognition

, 2019
The classification of individual traffic participants is a complex task, especially for challenging scenarios with multiple road users or under bad weather conditions.
Appenrodt, Nils, Dickmann, Jürgen, Scheiner, Nicolas, Sick, Bernhard   +3 more
core   +1 more source

Research on micro-Doppler feature of spatial target

EURASIP Journal on Wireless Communications and Networking, 2017
The micro-Doppler (m-D) effect which is also called micro-motion effect is a kind of physical phenomenon, which is often produced in ISAR imaging of space targets. When the space target has a micro-Doppler effect, it will produce frequency modulation for
Zhenyuan Ji, Encheng Hu, Yun Zhang, Hongyan Jin   +3 more
doaj   +1 more source

SAR-Based Vibration Estimation Using the Discrete Fractional Fourier Transform [PDF]

, 2012
A vibration estimation method for synthetic aperture radar (SAR) is presented based on a novel application of the discrete fractional Fourier transform (DFRFT).
Atwood, Tom, Beach, Ryan J., Doerry, Armin W., Dunkel, Ralf, Gerstle, Walter, Hayat, Majeed M., Pepin, Matthew, Santhanam, Balu, Wang, Qi   +8 more
core   +1 more source

Helicopter Rotor Parameter Estimation Method for Passive Radar

Leida xuebao, 2018
The passive radar is a new radar system based on third-party non-cooperative radiation sources, which has unique advantages in micro-Doppler target classification and recognition.
Li Yuqian, Yi Jianxin, Wan Xianrong, Liu Yuqi, Zhan Weijie   +4 more
doaj   +1 more source

A new simulation methodology for generating accurate drone micro‐Doppler with experimental validation

IET Radar, Sonar & Navigation
Unmanned Aerial Vehicles, or drones, pose a significant threat to privacy and security. To understand and assess this threat, classification between different drone models and types is required.
Matthew Moore, Duncan A. Robertson, Samiur Rahman   +2 more
doaj   +1 more source

Radar target classification by micro-Doppler contributions.

, 2019
This thesis studies non-cooperative automatic radar target classification. Recent developments in silicon-germanium and monolithic microwave integrated circuit technologies allows to build cheap and powerful continuous wave radars. Availability of radars opens new applications in different areas. One of these applications is security.
openaire   +2 more sources