Results 141 to 150 of about 7,522 (178)

Characteristics of pausing in normal, fast and cluttered speech

Clinical Linguistics & Phonetics, 2016
One 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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Characteristic research of ionospheric clutter in over the horizon HFSWR

IET Conference Publications, 2009
The 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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Characteristics of Clutter

2010
Radar clutter is a radar return from an object or objects that is of no interest to the radar mission. For example, the mission of many radar systems is the detection and tracking of targets such as aircraft, ships, or ground vehicles. To these systems, clutter is considered to be an interfering return from a natural object such as precipitation ...
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The characteristics of radar sea clutter

2006
In this chapter, sea clutter is described in terms of its observed characteristics. These observations will provide the foundations upon which the themes of subsequent chapters are developed. Radars operating in a maritime environment inevitably encounter backscattered radar signals from the sea surface, usually referred to as sea clutter.
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SPECTRAL CHARACTERISTICS OF RADAR PRECIPITATION CLUTTER REFLECTIONS IN THE Ka-BAND

Telecommunications and Radio Engineering, 2012
M. G. Balan, V. A. Zuikov, V. A. Razskazovsky, N. G. Reznichenko   +3 more
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Target and Clutter Characteristics

2009
The operation of all active sensors requires that some of the energy transmitted by the device be reflected off objects within the beam. The characteristics of the reflected signal can then be analyzed in various ways to extract information about the target.
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Mars radar clutter and surface roughness characteristics from MARSIS data

Icarus, 2018
Abstract Radar sounder studies of icy, sedimentary, and volcanic settings can be affected by reflections from surface topography surrounding the sensor nadir location. These off-nadir “clutter” returns appear at similar time delays to subsurface echoes and complicate geologic interpretation.
Bruce A. Campbell, Dustin M. Schroeder, Jennifer L. Whitten   +2 more
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Clutter Characteristics and Effects

1987
Since the earliest days of radar, detection of unwanted objects have interfered with the detection of desired targets. These unwanted returns are known as clutter, and there is a substantial amount of literature available on radar clutter dating from World War II to the present.
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Analyzing the Statistical Characteristics of Clutter from the Sea Surface

Vestnik MEI, 2018
As is known, when radars with long impulses observe a sea surface area in a range much larger than the seawave length, the clutter in the form of reflections from the sea surface has the Gaussian distribution, and their envelope has the Rayleigh distribution.
Egor A. Milashchenko, Aleksandr A. Yazovsky   +1 more
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Sea clutter characteristics analysis and target detection based on HHT

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
Non-linear & non-smooth is the important characteristics of sea clutter. Hilbert-Huang Transform is a new analysis method for nonlinear & non-smooth signals. When doing the Hilbert-Huang Transform to the radar signals, after the Empirical Mode Decomposition, the Trend Function and parts of Intrinsic Mode Functions are different between the sea clutter ...
Xiao Chunsheng, Cha Hao, Xia Dong
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