Results 51 to 60 of about 122 (113)

A Detection and Cover Integrated Waveform Design Method with Good Correlation Characteristics and Doppler Tolerance

Remote Sensing
With the increasing complexity of the electromagnetic environment, radar waveform design needs to break through the limitation of traditional single-function architectures, prompting the emergence of integrated radar waveforms.
Haoting Guo, Fulai Wang, Nanjun Li, Zezhou Wu, Chen Pang, Lei Zhang, Yongzhen Li   +6 more
doaj   +1 more source

Sparse Total Focus Imaging of Rail Transit Rail Defects Based on Grey Wolf Algorithm

Chengshi guidao jiaotong yanjiu
[Objective] Using the ultrasonic phased array technology can realize high-precision imaging detection of rail transit rail defects. However, the widely used FMC-TFM (full matrix capture-total focusing method) has the disadvantages of long computation ...
Lubin QIAN, Hongbo WU, Chunxiang GAO, Zhengbo WEI, Yuhui XING   +4 more
doaj   +1 more source

Synthesis of MIMO Radar Sparse Arrays Using a Hybrid Improved Fireworks-Simulated Annealing Algorithm

Applied Sciences
This study proposes a hybrid optimization algorithm (IFWA-SA) integrating an improved fireworks algorithm with simulated annealing for sparse array synthesis in multiple-input multiple-output (MIMO) radar systems.
Lifei Deng, Jinran Zhao, Yunqing Liu
doaj   +1 more source

Target Detection Using Fused Unidentical Photonics-Based LFM Sub-Band Radar Signals With an Adaptive Feed Forward Network Equalizer

IEEE Access
To address the challenges of costly frontend high frequency opto-electronics devices and the requirement of high bandwidth for improved range, resolution several band fusion techniques are proposed in this work.
Bikash Nakarmi, S. M. Rezwanul Islam, Hum Nath Parajuli, Ikechi Augustine Ukaegbu, Aigerim Ashimbayeva, Carlo Molardi, T. D. Subash, Xiangchuan Wang, Shilong Pan   +8 more
doaj   +1 more source

Linewidth Enhancement of Range Profile in Multi-Chirp Radar via Beat Signal Chirp and Phase Normalization

IEEE Access
In this paper, we present a new approach for chirp and phase normalization for enhancing linewidth and beat-signal coherence in a multi-chirp microwave photonic radar system.
Aigerim Ashimbayeva, Sun Zhijie, Mohd Rashidi Che Beson, T. D. Subash, Ikechi Augustine Ukaegbu, Shilong Pan, Carlo Molardi, Bikash Nakarmi   +7 more
doaj   +1 more source

Robust Low-Sidelobe Transmit Beamforming under Peak-to-Average-Power Ratio Constraint. [PDF]

Sensors (Basel), 2023
Cai L, Chu R, Ding Z, Zou Y, Li H.
europepmc   +1 more source

Nonlinear Harmonic Distortion of Complementary Golay Codes. [PDF]

Ultrason Imaging, 2023
Hamilton F, Hoskins P, Corner G, Huang Z, Huang Z.   +4 more
europepmc   +1 more source

Colocated MIMO Radar Waveform-Array Joint Optimization for Sparse Array. [PDF]

Sensors (Basel), 2023
Yin J, Ma R, Lin M, Zhou S.
europepmc   +1 more source

Multipath Detection and Mitigation of Random Noise Signals Propagated through Naturally Lossy Dispersive Media for Radar Applications. [PDF]

Sensors (Basel), 2023
Vazquez Alejos A, Dawood M.
europepmc   +1 more source

Generalized sidelobe canceler beamforming combined with Eigenspace-Wiener postfilter for medical ultrasound imaging. [PDF]

Technol Health Care, 2022
Yang J, Chen X, Cai H, Wang Y.
europepmc   +1 more source