Results 21 to 30 of about 773,448 (292)
Remote Sensing, 2023 The extraction of the micro-Doppler (m-D) feature based on time-frequency distribution (TFD) is of great significance for target detection and identification.
Yang Yang +4 more
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Enhanced tracking and recognition of moving objects by reasoning about spatio-temporal continuity. [PDF]
, 2008 A framework for the logical and statistical analysis and annotation of dynamic scenes containing occlusion and other uncertainties is presented. This framework consists of three elements; an object tracker module, an object recognition/classification ...
Bennett, B. +3 more
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Constrained Transmit Beampattern Design Using a Correlated LFM-PC Waveform Set in MIMO Radar
Sensors, 2020 This paper considers the design of a desired transmit beampattern under the good ambiguity function constraint using a correlated linear frequency modulation-phase coded (LFM-PC) waveform set in multiple-input-multiple-output (MIMO) radar. Different from
Sheng Hong +4 more
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On the ambiguity function for accelerating target in FMCW radar
Journal of Telecommunications and Information Technology, 2023 In the paper, we are concerned with FMCWradar detection of an accelerating target, echo of which is buried in an additive white Gaussian noise. We derive and analyze three-dimensional generalized ambiguity function for target range, velocity and ...
Rafał Rytel-Andrianik
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Construction of Waveform Library in Cognitive Radar
Polish Maritime Research, 2017 Based on the thoughts of cognitive radar, Fractional Fourier Transform (FrFT) is used to generate a rotatable waveform libraries of Frank coded/Barker coded waveform in this paper.
Yongqiang Guo, Yumin Wu, Hui Liu
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Coarse-to-Fine Localization of Underwater Acoustic Communication Receivers
Sensors, 2022 For underwater acoustic (UWA) communication in sensor networks, the sensing information can only be interpreted meaningfully when the location of the sensor node is known. However, node localization is a challenging problem.
Pan He +3 more
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FDSS-Based DFT-s-OFDM for 6G Wireless Sensing
Sensors, 2023 Integrated sensing and communications (ISAC) is emerging as a key technology of 6G. Owing to the low peak-to-average power ratio (PAPR) property, discrete Fourier transform spread orthogonal frequency-division multiplexing (DFT-s-OFDM) is helpful to ...
Lu Chen +5 more
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Fractional ambiguity function: Properties and uncertainty inequalities in signal processing
Franklin OpenThis article presents the construction of the fractional ambiguity function by combining the definition of the ambiguity function and the kernel of the fractional Fourier transform.
Mawardi Bahri +3 more
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Random Access for Underwater Acoustic Cellular Systems
Sensors, 2018 In this paper, a random access preamble (RAP) design technique for underwater acoustic cellular systems is proposed. After showing that the conventional RAP used in long term evolution (LTE) systems is not appropriate for underwater acoustic cellular ...
Rothna Pec +3 more
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Using heterogeneous satellites for passive detection of moving aerial target [PDF]
, 2020 Passive detection of a moving aerial target is critical for intelligent surveillance. Its implementation can use signals transmitted from satellites. Nowadays, various types of satellites co-exist which can be used for passive detection.
Chen, Yunfei +5 more
core +1 more source