Results 11 to 20 of about 24,447 (196)

High-Efficiency Optimization Algorithm of PMEPR for OFDM Integrated Radar and Communication Waveform Based on Conjugate Gradient

open access: yesRemote Sensing, 2022
The tone reservation (TR) approach is mainly adopted to reduce the peak-to-mean envelope power ratio (PMEPR) of orthogonal frequency division multiplexing (OFDM) waveform with low TR ratio (TRR) in classic 4G communication systems.
Juan Rong, Feifeng Liu, Yingjie Miao
doaj   +2 more sources

Dynamic Optimization Method for Broadband ADCP Waveform with Environment Constraints

open access: yesSensors, 2021
Broadband acoustic Doppler current profiler (ADCP) is widely used in agricultural water resource explorations, such as river discharge monitoring and flood warning.
Yongshou Yang, Shiliang Fang
doaj   +2 more sources

Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM

open access: yesIEEE Access
In the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao   +3 more
doaj   +2 more sources

Low Correlation Interference OFDM-NLFM Waveform Design for MIMO Radar Based on Alternating Optimization

open access: yesSensors, 2021
The OFDM chirp signal is suitable for MIMO radar applications due to its large time-bandwidth product, constant time-domain, and almost constant frequency-domain modulus.
Tianqu Liu   +4 more
doaj   +3 more sources

Transmitted Waveform Design Based on Iterative Methods [PDF]

open access: yesJournal of Applied Mathematics, 2013
In intelligent radar, it is an important problem for the transmitted waveform to adapt to the environment in which radar works. In this paper, we propose mutual information model of adaptive waveform design, which can convert the problem of adaptive ...
Bin Wang   +3 more
doaj   +2 more sources

Waveform Optimization of Compressed Sensing Radar without Signal Recovery

open access: yesInformation, 2019
Radar signal processing mainly focuses on target detection, classification, estimation, filtering, and so on. Compressed sensing radar (CSR) technology can potentially provide additional tools to simultaneously reduce computational complexity and ...
Quanhui Wang, Ying Sun
doaj   +2 more sources

Waveform Optimization for Enhancing the Performance of a Scanning Imaging Radar Utilizing a Terahertz Metamaterial Antenna

open access: yesRemote Sensing
A scanning radar based on terahertz metamaterial phased array (TMPA) is a novel system for forward-looking imaging. In this paper, a waveform optimization method based on random hopping frequency (RHF) and amplitude modulation is proposed to improve the ...
Heng Zhang   +4 more
doaj   +2 more sources

Spatial–Temporal Joint Design and Optimization of Phase-Coded Waveform for MIMO Radar

open access: yesRemote Sensing
By simultaneously transmitting multiple different waveform signals, a multiple-input multiple-output (MIMO) radar possesses higher degrees of freedom and potential in many aspects compared to a traditional phased-array radar.
Wei Lei   +4 more
doaj   +2 more sources

Radar Waveform Design Method Based on Cascade Optimization Processing under Missing Clutter Prior Data

open access: yesLeida xuebao, 2023
Cognitive radar waveform design often relies on accurate clutter prior information. When prior information data is missing, the constructed clutter model will be severely mismatched, affecting the radar’s ability to suppress clutter.
Yingkui ZHANG   +3 more
doaj   +1 more source

Doppler Resilient Integrated Sensing and Communication Waveforms Design

open access: yesLeida xuebao, 2023
Because Doppler resilience is limited in the existing joint design of Integrated Sensing And Communication (ISAC) waveforms, a new Doppler resilient ISAC waveform design is proposed based on a joint design. First, with the pulse train ambiguity function,
Jiahuan WANG   +3 more
doaj   +1 more source

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