Results 61 to 70 of about 527,568 (195)
IET Radar, Sonar & Navigation, 2021 Airborne multiple‐input multiple‐output (MIMO) radar can transmit orthogonal waveforms to increase the range of the detection target. However, in a multipath environment, airborne MIMO radar also has energy radiated to the target through multipath ...
Yili Hu +3 more
doaj +1 more source
Human Behavior Recognition Method Based on CEEMD-ES Radar Selection [PDF]
arXiv, 2022 In recent years, the millimeter-wave radar to identify human behavior has been widely used in medical,security, and other fields. When multiple radars are performing detection tasks, the validity of the features contained in each radar is difficult to guarantee.
arxiv
Leida xuebao, 2017 In allusion to the coupling relationship among radial velocity variation, range migration, and Doppler spread of a maneuvering target, a Dynamic Programing (DP)-based Weighted Adaptive Coherent Integration (DPWACI) detection method is proposed.
Chen Shuailin +4 more
doaj +1 more source
An Adaptive Hierarchical Detection Method for Ship Targets in High-Resolution SAR Images
Remote Sensing, 2020 With the improvement of image resolution in synthetic aperture radars (SARs), sea clutter characteristics become more complex, which poses new challenges to traditional ship target detection missions.
Yi Liang +4 more
doaj +1 more source
A clutter suppression algorithm via subspace‐weighted mixed‐norm minimisation
IET Radar, Sonar & Navigation, 2023 Space‐time adaptive processing (STAP) struggles to effectively suppress clutter in the heterogeneous clutter environment due to the lack of training samples.
Degen Wang +3 more
doaj +1 more source
Sub-Nyquist Radar Systems: Temporal, Spectral and Spatial Compression [PDF]
, 2018 Conventional radar transmits electromagnetic waves towards the targets of interest. In between the outgoing pulses, the radar measures the signal reflected from the targets to determine their presence, range, velocity and other characteristics. Radar systems face multiple challenges, generating many trade-offs such as bandwidth versus range resolution ...
arxiv +1 more source
Passive Radar at the Roadside Unit to Configure Millimeter Wave Vehicle-to-Infrastructure Links [PDF]
arXiv, 2019 Millimeter wave (mmWave) vehicular channels are highly dynamic, and the communication link needs to be reconfigured frequently. In this work, we propose to use a passive radar receiver at the roadside unit to reduce the training overhead of establishing an mmWave communication link.
arxiv
Principal Agent Problem as a Principled Approach to Electronic Counter-Countermeasures in Radar [PDF]
arXiv, 2021 Electronic countermeasures (ECM) against a radar are actions taken by an adversarial jammer to mitigate effective utilization of the electromagnetic spectrum by the radar. On the other hand, electronic counter-countermeasures (ECCM) are actions taken by the radar to mitigate the impact of electronic countermeasures (ECM) so that the radar can continue ...
arxiv
The Journal of Engineering, 2019 Here, the authors propose a robust adaptive beamforming method based on desired signal steering vector estimation and interference-plus-noise covariance matrix reconstruction, so as to attenuate the influences of the desired signal steering vector ...
Junsheng Huang, Hongtao Su, Yang Yang
doaj +1 more source
Coding schemes and Applications for Weather Radars [PDF]
arXiv, 2020 In this paper, we describe the evolution of a pair of polyphase coded waveform for use in second trip suppression in weather radar. The polyphase codes were designed and tested on NASA weather radar. The NASA dual-frequency, dual-polarization Doppler radar (D3R) was developed primarily as a ground validation tool for the GPM satellite dual-frequency ...
arxiv