Results 11 to 20 of about 94,254 (261)
ANALYSIS OF THE CHIRPLET TRANSFORM-BASED ALGORITHM FOR RADAR DETECTION OF ACCELERATED TARGETS
Radio Physics and Radio Astronomy, 2017 Purpose: Efficiency analysis of an optimal algorithm of chirp signal processing based on the chirplet transform as applied to detection of radar targets in uniformly accelerated motion.
V. G. Galushko, D. M. Vavriv
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Combined Radar and Communications With Phase-Modulated Frequency Permutations
IEEE Open Journal of the Communications Society, 2023 This paper focuses on the combined radar and communications problem and conducts a thorough analytical investigation on the effect of phase and frequency change on the communication and sensing functionality.
Tian Han +5 more
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Remote Sensing, 2022 In this paper, in order to reduce the probability of the radar waveform intercepted by the passive detection system, the time-bandwidth product of the radar waveform is increased, and the detection probability of the radar waveform to the target is ...
Yuxiao Song +5 more
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Engineering Reports, 2020 Time delay estimation (TDE) is an active research area due to its importance in a wide range of applications, such as target detection and transmitter identification.
Dillip Dash, Valarmathi Jayaraman
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On the Derivative Imbalance and Ambiguity of Functions [PDF]
IEEE Transactions on Information Theory, 2019 In 2007, Carlet and Ding introduced two parameters, denoted by $Nb_F$ and $NB_F$, quantifying respectively the balancedness of general functions $F$ between finite Abelian groups and the (global) balancedness of their derivatives $D_a F(x)=F(x+a)-F(x)$, $a\in G\setminus\{0\}$ (providing an indicator of the nonlinearity of the functions).
Shihui Fu +3 more
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Precise Method of Ambiguity Initialization for Short Baselines with L1-L5 or E5-E5a GPS/GALILEO Data
Sensors, 2020 This paper presents a precise and fast method of ambiguity resolution (PREFMAR) for frequencies L1/E1 and L5/E5a of GPS/GALILEO data. The developed method is designed for precise and fast determination of ambiguities in GNSS phase observations ...
Mieczysław Bakuła
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The communicative function of ambiguity in language [PDF]
Cognition, 2012 We present a general information-theoretic argument that all efficient communication systems will be ambiguous, assuming that context is informative about meaning. We also argue that ambiguity allows for greater ease of processing by permitting efficient linguistic units to be re-used.
Piantadosi, Steven T. +2 more
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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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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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Space-variant ambiguity function processor [PDF]
Applied Optics, 1979 The ambiguity function that results from the space-variant optical processing of nonlinear coded waveforms is analyzed. The space-variant signal processor considered is realized by coordinate transformations. Specifically we consider x = lnt, which results in a Mellin transform-based Doppler-invariant signal processor.
CASASENT, D., PSALTIS, D.
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