New Two-Dimensional Wigner Distribution and Ambiguity Function Associated with the Two-Dimensional Nonseparable Linear Canonical Transform
Sign Up to like & getrecommendations! Published in 2022 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-021-01790-x
Abstract: Two-dimensional Wigner distribution (2D WD) and ambiguity function (2D AF) are important tools for time–frequency analysis and signal processing, especially in the analysis of 2D chirp signals. In this paper, based on the classical 2D… read more here.
Keywords: wigner distribution; distribution ambiguity; nonseparable linear; dimensional wigner ... See more keywords
Generalized Ambiguity Function for FDA Radar Joint Range, Angle and Doppler Resolution Evaluation
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.3044351
Abstract: Differs from conventional phased-array, frequency diverse array (FDA) employs a frequency increment across the array elements and thus produces a range-angle-dependent beampattern. This additional range dependence finds applications in target detection/localization, high-resolution synthetic aperture radar… read more here.
Keywords: fda radar; range; ambiguity function; ambiguity ... See more keywords
An Applied Ambiguity Function Based on Dechirp for MIMO Radar Signal Analysis
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3141429
Abstract: The orthogonal waveform design and good hardware realization of multiple-input–multiple-output (MIMO) radar have always been important research topics. The orthogonal frequency division multiplexing (OFDM) chirp waveform has received more attention because of its large time-bandwidth… read more here.
Keywords: dechirp; mimo radar; waveform; ambiguity function ... See more keywords
Quartic Riemannian Trust Region Algorithm for Cognitive Radar Ambiguity Function Shaping
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3151679
Abstract: Waveform adaptation grants cognitive radar (CR) the ability to adapt to its environment, which requires an effective framework to synthesize waveforms sharing a desired ambiguity function (AF). In this letter, we propose a novel method… read more here.
Keywords: riemannian trust; ambiguity function; trust region; cognitive radar ... See more keywords
Generalized Ambiguity Function for MIMO Radar Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2019.2907390
Abstract: In this paper, a generalized signal model is presented to accommodate both narrowband and wideband signals in a multi-input multi-output (MIMO) sensor system scenarios. The derived model is then used to define a MIMO ambiguity… read more here.
Keywords: systems generalized; mimo; generalized ambiguity; ambiguity function ... See more keywords
Fractional Ambiguity Function for the Generalized Wideband MIMO Radar
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2022.3143780
Abstract: In this article, we define an ambiguity function (AF) for the generalized wideband multiple-input multiple-output (MIMO) radar, wherein the AF combines the signal processing in the fractional Fourier domain with all the functions of conventional… read more here.
Keywords: ambiguity function; wideband; wideband mimo; mimo radar ... See more keywords
Cognitive Radar-Based Sequence Design via SINR Maximization
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DOI: 10.1109/tsp.2016.2621723
Abstract: The ambiguity function plays an important role in radar systems. In fact, many radar design problems can be interpreted from the perspective of persuing desired ambiguity functions to adapt to various application scenes. In this… read more here.
Keywords: ambiguity function; sequence; design; radar ... See more keywords
Joint Delay and Doppler Shift Estimation for Multiple Targets Using Exponential Ambiguity Function
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2017.2655494
Abstract: The estimation of delay and Doppler shift parameters in the presence of multiple targets in radar applications are addressed in this study. The construction of a new ambiguity function, namely, exponential ambiguity function, is proposed… read more here.
Keywords: exponential ambiguity; estimation; ambiguity function; delay doppler ... See more keywords