Results 21 to 30 of about 120,318 (255)
Range‐ambiguity suppression for noise radar in cluttered environment via sparse recovery
Electronics 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
Slow-Time MIMO Waveform Design Using Pulse-Agile-Phase-Coding for Range Ambiguity Mitigation
Remote Sensing, 2023 This paper proposed a Pulse-Agile-Phase-Coding slow-time MIMO (PAPC-st-MIMO) waveform, where the phase-coded signal is utilized as the intra-pulse modulation of the slow-time MIMO waveform.
Shaoqiang Chang +5 more
doaj +1 more source
Range-Angle Localization of Targets With Planar Frequency Diverse Subaperturing MIMO Radar
IEEE Access, 2018 Target localization utilizing frequency diverse array (FDA) has received much attention in recent years. In this paper, we propose a tensor subspace-based multiple-target 3-D localization method with planar frequency diverse subaperturing multiple-input ...
Xingxing Li +4 more
doaj +1 more source
A Proposed Algorithm for Range Ambiguities Suppression in Multi-Static Sar [PDF]
IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022 In a conventional synthetic aperture radar (SAR), good azimuth resolution and wide coverage pose contradicting requirements for the pulse repetition frequency (PRF). With a PRF tailored to a desired resolution, range ambiguities is then the main obstacle to a wide swath imaging.
Nguyen Thi, Phuong Mai +2 more
openaire +1 more source
Remote SensingThe bistatic radar has been widely applied in moving target detection and tracking due to its unique bistatic perspective, low power, and good concealment.
Peng Zhao +6 more
doaj +1 more source
Bernoulli filter for range and Doppler ambiguous radar
IET Signal Processing, 2015 A pulse Doppler radar worked in medium or high pulse repetition frequency (PRF) may suffer from range and Doppler ambiguities. The common method to solve ambiguities is to use multiple PRFs and do correlation between them. The ghosting problem may be caused by the false alarms in the correlation.
Fei Cai +3 more
openaire +2 more sources
Robust FDA-STAP Under Transmit Array Gain and Phase Error for Range Ambiguity
EngFrequency diverse array (FDA)-aided spacetime adaptive processing (STAP) is a useful approach to suppressing range-ambiguous clutter in airborne radars.
Di Song +3 more
doaj +1 more source
Remote Sensing, 2021 A new method to design in-orbit synthetic aperture radar operational parameters has been implemented for the Korean Multi-purpose Satellite 6 mission. The implemented method optimizes the pulse repetition frequency when a satellite altitude changes from ...
Jin-Bong Sung, Sung-Yong Hong
doaj +1 more source
SAR ambiguous range suppression. [PDF]
, 2006 Pulsed Radar systems suffer range ambiguities, that is, echoes from pulses transmitted at different times arrive at the receiver simultaneously. Conventional mitigation techniques are not always adequate. However, pulse modulation schemes exist that allow separation of ambiguous ranges in Doppler space, allowing easy filtering of problematic ambiguous ...
openaire +2 more sources
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source