Results 11 to 20 of about 44,798 (233)

Automatic Arm Motion Recognition Based on Radar Micro-Doppler Signature Envelopes [PDF]

open access: greenIEEE Sensors Journal, 2020
In considering human-machine interface (HMI) for smart environment, a simple but effective method is proposed for automatic arm motion recognition with a Doppler radar sensor. Arms, in lieu of hands, have stronger radar cross-section and can be recognized from relatively longer distances.
Zhengxin Zeng, Moeness G. Amin, Tao Shan
openalex   +4 more sources

Hand Gesture Recognition based on Radar Micro-Doppler Signature Envelopes [PDF]

open access: green2019 IEEE Radar Conference (RadarConf), 2018
We introduce a simple but effective technique in automatic hand gesture recognition using radar. The proposed technique classifies hand gestures based on the envelopes of their micro-Doppler signatures. These envelopes capture the distinctions among different hand movements and their corresponding positive and negative Doppler frequencies which are ...
Moeness G. Amin, Zhengxin Zeng, Tao Shan
openalex   +4 more sources

Chirped Waveform Generation With Envelope Reconfigurability for Pulse Compression Radar

open access: greenIEEE Photonics Technology Letters, 2015
This work was supported in part by the Ministerio de Ciencia y Tecnologia through the National Project under Grant TEC2014-60378-C2-1-R and in part by Generalitat Valenciana through the Regional Project under Grant PROMETEO FASE II/2013/012.
Manuel Rius   +3 more
openalex   +4 more sources

Precise Radar Target Ranging Estimation Based on Slip Matching of Envelopes [PDF]

open access: hybridAdvances in Computer Science Research, 2015
A novel precise radar target ranging method based on echo phases and slip matching of envelopes is presented in this paper. The method provides a high precision with rootmean-square error at sub-wavelength level, and it only requires envelopes of the echo pulses. The difficulty is matching procedure of envelopes. According to the principle of resolving
Liqiang Zhu, Yongxiang Liu, Dekang Zhu
openalex   +3 more sources

Envelope detection for a double-sideband Low IF CW radar

open access: green2018 IEEE/MTT-S International Microwave Symposium - IMS, 2018
The requirement to detect weak physiology motion by Doppler radar arises new architectures utilizing low intermediate frequency (IF) to achieve high signal-to-noise ratio (SNR). With the help of low IF, the significant motion information is modulated to IF domain, promoting the system's resistivity to both noise impact and AC distortion.
Xujun Ma   +3 more
openalex   +3 more sources

Reduction of sidelobe levels in multicarrier radar signals via the fusion of hill patterns and geometric progression

open access: yesETRI Journal, 2021
Multi‐carrier waveforms have several advantages over single‐carrier waveforms for radar communication. Employing multi‐carrier complementary phase‐coded (MCPC) waveforms in radar applications has recently attracted significant attention.
Channapatna Gopalkrishna Raghavendra   +2 more
doaj   +1 more source

Envelope Detection for an ADC-Relaxed Double-Sideband Low-IF CW Doppler Radar

open access: greenIEEE Transactions on Microwave Theory and Techniques, 2018
In this paper, we propose a new envelope detection (ED) method to reduce the analog-to-digital converters’ (ADCs) sampling rate from 20 kHz to 20 Hz in a double-sideband low-intermediate-frequency (IF) continuous-wave Doppler radar. Compared with the conventional synchronous demodulation (SD) method, which typically consumes a large amount of ADC ...
Xujun Ma   +4 more
openalex   +3 more sources

Review of Ground Penetrating Radar Applications for Water Dynamics Studies in Unsaturated Zone

open access: yesRemote Sensing, 2022
For water dynamics investigation in unsaturated (vadose) zones, ground penetrating radar is a popular hydro-geophysical method because it is non-invasive for soil, has high resolution and the results have a direct link with water content.
Minghe Zhang   +9 more
doaj   +1 more source

Terrain analysis using radar shape-from-shading [PDF]

open access: yes, 2003
This paper develops a maximum a posteriori (MAP) probability estimation framework for shape-from-shading (SFS) from synthetic aperture radar (SAR) images.
Bors, A G, Hancock, E R, Wilson, R C
core   +3 more sources

Envelope Correction of Micro-Motion Targets in the Terahertz ISAR Imaging

open access: yesSensors, 2018
Motion compensation is a crucial step to inverse synthetic aperture radar imaging, and envelope correction is the foundation of motion compensation.
Qi Yang   +4 more
doaj   +1 more source

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