Results 251 to 260 of about 1,343,900 (305)
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1983
Array signal processing (ASP) represents a class of antenna system where the output from an array is subjected to various forms of signal processing (e.g. phase and amplitude control, time delay or frequency translation) in order to produce outputs which can simultaneously provide angular information relating to several different directions.
D. E. Davies +3 more
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Array signal processing (ASP) represents a class of antenna system where the output from an array is subjected to various forms of signal processing (e.g. phase and amplitude control, time delay or frequency translation) in order to produce outputs which can simultaneously provide angular information relating to several different directions.
D. E. Davies +3 more
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Acoustic vector sensor array processing
[1992] Conference Record of the Twenty-Sixth Asilomar Conference on Signals, Systems & Computers, 1994An approach is proposed for localization of acoustic sources using an array of sensors for which the measurement of each sensor is a vector consisting of the acoustic pressure and acoustic particle velocity. A compact expression is derived for the Cramer-Rao bound (CRB) on the estimation errors of the source direction-of-arrival (DOA) parameters in the
A. Nehorai, E. Paldi
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Digital optical isochronous array processing
Applied Optics, 1987An optical isochronous array processing method is proposed. An optical isochronous array processor (OIAP) is a local regularly interconnected processing network that employs an array of identical optical processing elements. In an OIAP, incoming isochronous data are parallel processed in a fashion much like a propagating electromagnetic wavefront.
G, Eichmann, Y, Li, P P, Ho, R R, Alfano
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2007 Conference Record of the Forty-First Asilomar Conference on Signals, Systems and Computers, 2007
Thomson's multitaper approach generates estimates of the power spectrum by averaging individual "eigenspectra" obtained using a set of orthogonal window functions. The multitaper method is designed to work with very low sample support, typically a single snapshot of data, making it very attractive for the analysis of nonstationary or transient signals.
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Thomson's multitaper approach generates estimates of the power spectrum by averaging individual "eigenspectra" obtained using a set of orthogonal window functions. The multitaper method is designed to work with very low sample support, typically a single snapshot of data, making it very attractive for the analysis of nonstationary or transient signals.
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Beamforming and array processing with active arrays
Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002An experimental phased array radar (ELRA) has been developed as a basis for investigations of various kinds of new radar functions and signal processing techniques. Two separate active antenna arrays for transmitting (300 transistor power amplifiers) and receiving (768 channels) have been built.
W. Wirth, U. Nickel
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2016
The concept of informed array processing is introduced in this chapter. The conceptual aim of informed array processing is to incorporate relevant spatial information about the problem to be solved into the design of spatial filters and into the estimation of the second-order statistics that are required to implement the beamformers of Chap.
Daniel P. Jarrett +2 more
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The concept of informed array processing is introduced in this chapter. The conceptual aim of informed array processing is to incorporate relevant spatial information about the problem to be solved into the design of spatial filters and into the estimation of the second-order statistics that are required to implement the beamformers of Chap.
Daniel P. Jarrett +2 more
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2016
This chapter takes a different approach to signal enhancement using spherical microphone arrays: a physically-motivated parametric representation of the sound field is introduced. It is shown that the sound field can be manipulated to achieve noise reduction or dereverberation by applying a time- and frequency-dependent gain to a reference signal.
Daniel P. Jarrett +2 more
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This chapter takes a different approach to signal enhancement using spherical microphone arrays: a physically-motivated parametric representation of the sound field is introduced. It is shown that the sound field can be manipulated to achieve noise reduction or dereverberation by applying a time- and frequency-dependent gain to a reference signal.
Daniel P. Jarrett +2 more
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2001
In this chapter, an overview of the fundamentals of array signal processing is provided with a particular emphasis on recent advances in direction-ofarrival (DOA) estimation and adaptive beamforming. It is then highlighted that the signal models used in array processing and space-time block coded MIMO communications are rather similar. At the same time,
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In this chapter, an overview of the fundamentals of array signal processing is provided with a particular emphasis on recent advances in direction-ofarrival (DOA) estimation and adaptive beamforming. It is then highlighted that the signal models used in array processing and space-time block coded MIMO communications are rather similar. At the same time,
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2011
Optimum array processing is an optimum multichannel filtering problem. The objective of array processing is to enhance the reception (or detection) of a desired signal that may be either random or deterministic in a signal environment containing numerous interference signals. The desired signal may also contain one or several uncertain parameters (e.g.,
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Optimum array processing is an optimum multichannel filtering problem. The objective of array processing is to enhance the reception (or detection) of a desired signal that may be either random or deterministic in a signal environment containing numerous interference signals. The desired signal may also contain one or several uncertain parameters (e.g.,
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1992
Abstract : Research issues specifically related to the processing of data produced by arrays of sensors as might be encountered in various remote sensing scenarios and direction finding problems.
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Abstract : Research issues specifically related to the processing of data produced by arrays of sensors as might be encountered in various remote sensing scenarios and direction finding problems.
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