Results 211 to 220 of about 8,222 (258)
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Airborne Flexible-Array Radar Clutter Characteristics and STAP Performance Analysis
IEEE Transactions on Aerospace and Electronic Systems, 2023Yan Sun, Wen-Qin Wang
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Range-ambiguous clutter characteristics in airborne FDA radar
Signal Processing, 2020Abstract Frequency diverse array (FDA) has received much attention in recent years. Different from classic phased-array (PA) that uses the same carrier frequency for all array elements, FDA adopts a small frequency increment across its array elements to produce angle, range and even time dependent transmit beampattern, which provides many promising ...
Yi-Sheng Yan +3 more
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Differential diagnostic characteristics between cluttering and stuttering—Part one
Journal of Fluency Disorders, 2009Speech-language pathologists generally agree that cluttering and stuttering represent two different fluency disorders. Differential diagnostics between cluttering and stuttering is difficult because these disorders have similar characteristics and often occur in conjunction with each other. This paper presents an analysis of the differential diagnostic
van Zaalen-op't Hof, Y. +2 more
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Measurements of Characteristics of Clutter
Measurement Techniques, 2017Maximum likelihood algorithms for estimating parameters of a correlation matrix of clutter for adaptive allocation of signals of moving targets in multifrequency coherent pulse radar-tracking systems are synthesized. Schematic diagrams of the corresponding measuring instruments are provided.
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Effects of geometry on clutter characteristics of bistatic radars
Proceedings of the 2003 IEEE Radar Conference (Cat. No. 03CH37474), 2004This paper deals with the clutter characteristics of multichannel airborne radars. The analysis is performed using the clutter spectral center, which is a descriptive metric, in addition to commonly used measures such as Doppler-angle traces, iso-range, and iso-Doppler contours etc.
null Yuhong Zhang, B. Himed
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Characteristics of pausing in normal, fast and cluttered speech
Clinical Linguistics & Phonetics, 2016One of the main symptoms of cluttering is atypical pausing. However, there is little information about what this atypical pausing means, because typical speakers also have pauses not only at syntactic boundaries, but also within syntactic structures, and even within words.
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Characteristics of the acquisition of a dim target in clutter
SPIE Proceedings, 1996Target acquisition is fairly straight forward when tracking a single bright target. A dim target in clutter on the other hand can present some challenges in target acquisition. The characteristics of detecting a target under typical conditions are fairly well understood.
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Characteristic research of ionospheric clutter in over the horizon HFSWR
IET Conference Publications, 2009The presence of ionospheric clutter in high-frequency over the horizon surface wave radar may extremely affect the performance of radar system and degrade the capability of detecting target, so it should be suppressed. The characteristic analysis of ionospheric clutter is the foundation of studying method to suppress ionospheric clutter, so it is ...
null Jiang Wei, null Deng Weibo
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The Impact Analysis of Range Ambiguity for SABBR Clutter Doppler Characteristics
2018 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2018In the working process of space-air based bistatic radar (SABBR), the range ambiguity has a great influence on the clutter characteristics. In view of this issue, a clutter model is established based on the geometric relations and the calculation formulas of distance sum in this paper.
Yue Wang +4 more
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Ocean clutter characteristics for a coherent Doppler UHF radar
OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158), 2002A coherent UHF radar has been developed by the authors for the detection of small targets in high sea-states. There are several important advantages that can be exploited by operating in the UHF band. The UHF spectrum has been proven to provide a window where the clutter energy scattered back from the sea is significantly less than at other radar ...
C. Randell, D. Power, R. Khan
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