Results 111 to 120 of about 52,074 (233)

AIMC-Spec: A Benchmark Dataset for Automatic Intrapulse Modulation Classification Under Variable Noise Conditions

open access: yesIEEE Access
A lack of standardized datasets has long hindered progress in automatic intrapulse modulation classification (AIMC)—a critical task in radar signal analysis for electronic support systems, particularly under noisy or degraded conditions.
Sebastian L. Cocks   +2 more
doaj   +1 more source

Are physiological oscillations physiological?

open access: yesThe Journal of Physiology, Volume 604, Issue 9, Page 3672-3693, 1 May 2026.
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

Ranging and tracking system for proximity operations, phase 1 [PDF]

open access: yes
A study task is reported which is directed towards developing a conceptual design of a small, lightweight range and range rate radar sensor system to meet NASA's requirements for accurate short-range and velocity measurements in an orbital environment ...
Nilsen, P. W., Udalov, S.
core   +1 more source

Backscatter Transponder Based on Frequency Selective Surface for FMCW Radar Applications [PDF]

open access: yes, 2014
This paper describes an actively-controlled frequency selective surface (FSS) to implement a backscatter transponder. The FSS is composed by dipoles loaded with switching PIN diodes. The transponder exploits the change in the radar cross section (RCS) of
Girbau, D.   +3 more
core   +1 more source

Recommendations and comments concerning documentation on the microwave active spectrometer systems [PDF]

open access: yes
There are no author-identified significant results in this ...
Pounds, D. P., Rosenkranz, W. A.
core   +1 more source

An Ultra-Wide Swath Synthetic Aperture Radar Imaging System via Chaotic Frequency Modulation Signals and a Random Pulse Repetition Interval Variation Strategy

open access: yesRemote Sensing
Ultra-wide swath synthetic aperture radar (SAR) systems are of great significance for applications such as terrain measurement and ocean monitoring. In conventional SAR systems, targets echo from the near-range and far-range of an observed swath mutually
Wenjiao Chen   +3 more
doaj   +1 more source

Radar scatterometry - An active remote sensing tool [PDF]

open access: yes
Radar scatterometer for measuring scattering coefficient variation with angle, wavelength, and ...
Moore, R. K.
core   +1 more source

Communications techniques and equipment: A compilation [PDF]

open access: yes
This Compilation is devoted to equipment and techniques in the field of communications. It contains three sections. One section is on telemetry, including articles on radar and antennas.

core   +1 more source

On radar polarimetry in FM-CW radar

open access: yesOn radar polarimetry in FM-CW radar
This paper attempts to apply the principle of radar polarimetry to wideband synthetic aperture FM-CW radar and presents a basic polarimetric detection result of a linear target in a laboratory measurement. Although the principle of radar polarimetry has well been established for the completely polarized wave and for the monostatic case, it still needs ...
openaire  

A Study of Linear Approximation Techniques for SAR Azimuth Processing [PDF]

open access: yes
The application of the step transform subarray processing techniques to synthetic aperture radar (SAR) was studied. The subarray technique permits the application of efficient digital transform computational techniques such as the fast Fourier transform ...
Liu, B., Martinson, L. W., Perry, R. P.
core   +1 more source

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