Results 11 to 20 of about 596,644 (247)

Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery

open access: yesElectronics Letters, 2021
Range ambiguity suppression is a significant problem in traditional pulse‐Doppler radar systems, especially when the pulse repetition frequency is set high to avoid Doppler ambiguity. One possible way to deal with such problem is to apply the noise radar
Xingyu Lu   +4 more
doaj   +1 more source

Integrating Agile Waveforms With DBF for HRWS SAR Imagery and Adaptive Jamming Suppression

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Range ambiguity resolving and deceptive jamming suppression are both challenges for high-resolution wide-swath SAR imagery. With the accommodation of the digital beamforming (DBF) techniques, agile waveforms are of potential to tackle the ambiguity ...
GanE Dai, Sha Huan, Lei Zhang
doaj   +1 more source

High-Resolution Wideband Waveform Design for Sonar Based on Multi-Parameter Modulation

open access: yesRemote Sensing, 2023
The design of transmitting waveforms is an effective way to improve the detection performance of sonar systems. For the problem of high-range sidelobe when designing reverberation-resistant waveforms, this paper proposes a high-resolution wideband ...
Tong Duan   +3 more
doaj   +1 more source

Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems [PDF]

open access: yes, 2011
The Azimuth Phase Coding (APC) technique, proposed to suppress range ambiguities in conventional SAR systems, stands out for its low implementation complexity and its effectiveness for point and distributed ambiguities.
Bordoni, Federica   +5 more
core   +1 more source

Ambiguity and Social Interaction [PDF]

open access: yes
We present a non-technical account of ambiguity in strategic games and show how it may be applied to economics and social sciences. Optimistic and pessimistic responses to ambiguity are formally modelled.
Kelsey, David   +2 more
core   +8 more sources

A Reverberation Suppression Method Based on the Joint Design of a PTFM Waveform and Receiver Filter

open access: yesEntropy, 2022
Transmitting waveform design and signal processing method optimization are effective ways to improve a sonar system’s detection performance. In this study, the spectrum and ambiguity function characteristics of pulse trains of frequency modulation (PTFM)
Lei Yue   +3 more
doaj   +1 more source

Ambiguity and Social Interaction [PDF]

open access: yes, 2005
We present a non-technical account of ambiguity in strategic games and show how it may be applied to economics and social sciences. Optimistic and pessimistic responses to ambiguity are formally modelled.
Kelsey, David   +3 more
core   +1 more source

Testing dynamic consistency and consequentialism under ambiguity [PDF]

open access: yes, 2020
Accounting for ambiguity aversion in dynamic decisions generally implies that either dynamic consistency or consequentialism must be given up. To gain insight into which of these principles better describes people's preferences, we tested them using a ...
Eichberger, J�rgen   +5 more
core   +2 more sources

Ground Moving Target Indication for the Geosynchronous-Low Earth Orbit Bistatic Multichannel SAR System

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, an effective clutter suppression and moving target imaging approach is proposed for the geosynchronous-low earth orbit (GEO-LEO) bistatic multichannel synthetic aperture radar (SAR) system, which is robust for the fast moving target with
Shuangxi Zhang   +5 more
doaj   +1 more source

A Method for Reducing the Impact of Range Ambiguity

open access: yesLeida xuebao, 2017
In this paper, we study the clutter suppression problem of an airborne bistatic radar with range ambiguity and propose a novel method to reduce the impact of range ambiguity using geometric configuration.
Wei Min, Li Xiaobo, Wang Li
doaj   +1 more source

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