Results 1 to 10 of about 5,323,059 (392)

Human Micro-Doppler Frequency Estimation Approach for Doppler Radar

IEEE Access, 2018
Micro-Doppler frequency estimation is an important issue for radar target recognition. In this paper, a novel approach is proposed to accurately estimate the micro-Doppler frequencies of specific target scattering parts, which can be very promising in ...
Yipeng Ding, Chengxi Lei, Xuemei Xu, Kehui Sun, Ling Wang   +4 more
doaj   +4 more sources

Doppler Frequency-Shift Information Processing in WO_x -Based Memristive Synapse for Auditory Motion Perception. [PDF]

Adv Sci (Weinh), 2023
Auditory motion perception is one crucial capability to decode and discriminate the spatiotemporal information for neuromorphic auditory systems. Doppler frequency‐shift feature and interaural time difference (ITD) are two fundamental cues of auditory ...
Zeng T, Wang Z, Lin Y, Cheng Y, Shan X, Tao Y, Zhao X, Xu H, Liu Y.   +8 more
europepmc   +2 more sources

Analysis of Radar Doppler Signature from Human Data [PDF]

Radioengineering, 2014
This paper presents the results of time (autocorrelation) and time-frequency (spectrogram) analyses of radar signals returned from the moving human targets.
M. ANDRIĆ, D. BUJAKOVIĆ, B. BONDZULIĆ, S. SIMIĆ, B. ZRNIĆ   +4 more
doaj   +2 more sources

Enhancing the correlation between azimuth and Doppler frequency for speed estimation of nearby tangential targets [PDF]

Scientific Reports
With the development of intelligent transportation systems, traffic supervision radar with wide coverage plays a crucial role in traffic management and vehicle-road coordination.
Wenjie Li, Yuchen Luan, Zicheng Chai, Longyong Chen   +3 more
doaj   +2 more sources

Monitoring high-intensity focused ultrasound thermal therapy by ultrasound doppler imaging using twinkling artifact. [PDF]

PLoS ONE
High-Intensity Focused Ultrasound (HIFU) is a non-invasive therapeutic modality that uses high-energy acoustic waves to thermally coagulate tissue at the focal region.
Amirhossein Jamallivani, Hamid Behnam, Jahangir Tavakkoli   +2 more
doaj   +2 more sources

Sea Clutter Covariance Matrix Estimation and Its Application to Whitening Filter [PDF]

Journal of Electromagnetic Engineering and Science, 2021
The accurate estimation of clutter covariance matrix (CCM) is essential in designing a radar detector/filter to suppress sea clutter. This estimation might not be easily accomplished because of the scarcity of valid training vectors adjacent to the range
Sanghyun Choi, Hoongee Yang, Jimin Song, Hyeonmu Jeon, Jongmann Kim, Yongseek Chung   +5 more
doaj   +1 more source

Securing the Inter-Spacecraft Links: Physical Layer Key Generation From Doppler Frequency Shift [PDF]

IEEE Journal of Radio Frequency Identification, 2021
In this work, we propose a secret key generation procedure specifically designed for the inter-spacecraft communication links. As a novel secrecy source, the spacecrafts utilize Doppler frequency shift based measurements.
Ozan Alp Topal, G. Kurt, H. Yanikomeroglu   +2 more
semanticscholar   +1 more source

Machine Learning Based Object Classification and Identification Scheme Using an Embedded Millimeter-Wave Radar Sensor

Sensors, 2021
A target’s movements and radar cross sections are the key parameters to consider when designing a radar sensor for a given application. This paper shows the feasibility and effectiveness of using 24 GHz radar built-in low-noise microwave amplifiers for ...
Homa Arab, Iman Ghaffari, Lydia Chioukh, Serioja Tatu, Steven Dufour   +4 more
doaj   +1 more source

3D Target Localization by Using Particle Filter with Passive Radar Having one Non-cooperative Transmitter and one Receiver

Journal of Communications Software and Systems, 2021
In a passive radar system, localizing a target in Cartesian space is achieved by using one of the following bistatic geometries: multiple non-cooperative transmitters with one receiver, one non-cooperative transmitter with multiple receivers, or one non ...
Anas Mahmoud Almanofi, Adnan Malki, Ali Kazem   +2 more
doaj   +1 more source

All-Optical Pulsed Signal Doppler Frequency Shift Measurement System

IEEE Photonics Journal, 2021
A simple and all-optical Doppler frequency shift (DFS) measurement system is presented. It is based on a dual-drive Mach Zehnder modulator (DDMZM) driven by a transmitted signal and an echo signal received by an antenna.
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source