Results 11 to 20 of about 2,547 (185)

On the Analysis of PM/FM Noise Radar Waveforms Considering Modulating Signals with Varied Stochastic Properties [PDF]

open access: yesSensors, 2021
Noise Radar technology is the general term used to describe radar systems that employ realizations of a given stochastic process as transmit waveforms. Originally, carriers modulated in amplitude by a Gaussian random signal, derived from a hardware noise
Leandro Pralon   +3 more
doaj   +2 more sources

Automatic LPI radar waveform recognition of overlapping signals based on vision language model [PDF]

open access: yesScientific Reports
Low probability of intercept (LPI) microwave waveforms are commonly utilized in multiple radar systems. Identifying precisely the modulation formats of LPI waveform is of importance in complex electromagnetic environment.
Pengkun Yang   +4 more
doaj   +2 more sources

Space-Time Radar Waveforms: Circulating Codes [PDF]

open access: yesJournal of Electrical and Computer Engineering, 2013
This paper describes a concept of the circulating codes covering the whole class of the space-time codes. The circulating codes do not narrow the radiated pattern of the antenna array, thus providing a wide angular coverage, possibly tunable.
G. Babur, P. Aubry, F. Le Chevalier
doaj   +4 more sources

OTFS Radar Waveform Design Based on Information Theory [PDF]

open access: yesEntropy
In this work, we consider the waveform design for radar systems based on orthogonal time–frequency space (OTFS). The conditional mutual information (CMI), chosen as a promising metric for assessing the radar cognitive capability, serves as the criterion ...
Qilong Miao   +3 more
doaj   +2 more sources

Automotive radar interference study for different radar waveform types

open access: yesIET Radar, Sonar & Navigation, 2022
Mutual interference between different radar waveforms used in automotive radar applications is studied. The existing interference analysis is extended to a generalised radar‐to‐radar interference equation that covers most of the common interference ...
Utku Kumbul   +3 more
doaj   +1 more source

Spatial Information-Theoretic Optimal LPI Radar Waveform Design

open access: yesEntropy, 2022
In this paper, the design of low probability of intercept (LPI) radar waveforms considers not only the performance of passive interception systems (PISs), but also radar detection and resolution performance. Waveform design is an important considerations
Jun Chen   +4 more
doaj   +1 more source

MIMO Radar Imaging Method with Non-Orthogonal Waveforms Based on Deep Learning

open access: yesAlgorithms, 2022
Transmitting orthogonal waveforms are the basis for giving full play to the advantages of MIMO radar imaging technology, but the commonly used waveforms with the same frequency cannot meet the orthogonality requirement, resulting in serious coupling ...
Hongbing Li, Qunfei Zhang
doaj   +1 more source

MIMO Dual-Functional Radar-Communication Waveform Design With Peak Average Power Ratio Constraint

open access: yesIEEE Access, 2021
In this paper, novel Dual-Functional Radar-Communication (DFRC) waveforms with peak average power ratio (PAPR) constraint are designed, which are under the multiple-input multiple-output (MIMO) radar-communication system.
Yujiu Zhao   +4 more
doaj   +1 more source

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

The Determination of Effective Beamwidth of Ku Band Profiling Radar Based on Waveform Matching Method in the Boreal Forest of Finland

open access: yesRemote Sensing, 2020
Radar scientists typically define the radar beamwidth as a half-power beamwidth (HPBW) in the main lobe of the antenna pattern. However, the microwave radiations outside radar HPBW might also backscatter into the radar receiver and change the ...
Hui Zhou   +7 more
doaj   +1 more source

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