Zobrazeno 1 - 10
of 197
pro vyhledávání: '"spotlight SAR"'
Autor:
Haemin Lee, Ki-Wan Kim
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 6579-6600 (2023)
A barrage noise jamming method for spotlight synthetic aperture radar (SAR) with kinematic parameter estimation using extended Kalman filter (EKF) is newly proposed. The main objective of the proposed method is real-time generation of the jamming sig
Externí odkaz:
https://doaj.org/article/dbab312aba114565917e21b3bdc6fefd
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 126-140 (2023)
In space-borne synthetic aperture radar (SAR), the sliding spotlight mode can acquire images with both high-resolution and wide-swath in azimuth direction. Due to the significant two-dimensional spatial variance of Doppler parameters, the traditional
Externí odkaz:
https://doaj.org/article/87ba6bb0dfda40d8850d1b1dc5dcb677
Publikováno v:
EURASIP Journal on Image and Video Processing, Vol 2019, Iss 1, Pp 1-10 (2019)
Abstract In this paper, a synthetic aperture radar (SAR) image formation simulator is used to objectively evaluate the parameter selection within the digital spotlighting process. Specifically, recommendations for the filter type and filter order of
Externí odkaz:
https://doaj.org/article/56ecbf7e00cc4c68b7056d9aea6f63c0
Publikováno v:
Leida xuebao, Vol 8, Iss 4, Pp 527-536 (2019)
This paper focuses on an improved imaging-algorithm for the spotlight Synthetic Aperture Radar (spotlight SAR) with continuous Pulse Repetition Frequency (PRF) variation in extremely high-resolution imaging-process. PRI variation is conventionally em
Externí odkaz:
https://doaj.org/article/e8b4ba3053ec4cfab1cb6ca8c0780258
Autor:
Takero Yoshida, Kazuo Ouchi
Publikováno v:
Remote Sensing, Vol 14, Iss 19, p 4691 (2022)
Spotlight synthetic aperture radar (SAR) achieves a high azimuth resolution with long integration times. Meanwhile, the long integration times also cause defocused and smeared images of moving objects such as cruising ships This is a typical imaging
Externí odkaz:
https://doaj.org/article/1a8458402d644f038ee91df0a9e3d4b2
Publikováno v:
Remote Sensing, Vol 13, Iss 23, p 4883 (2021)
As an emerging orbital system with flexibility and brand application prospects, the highly elliptical orbit synthetic aperture radar (HEO SAR) can achieve both a low orbit detailed survey and continuous earth surface observation in high orbit, which
Externí odkaz:
https://doaj.org/article/3d290ef4fee14b938c227c5b397bb5dc
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2017, Iss 1, Pp 1-11 (2017)
Abstract This paper focuses on the spotlight synthetic aperture radar (SAR) imaging for point scattering targets based on tensor modeling. In a real-world scenario, scatterers usually distribute in the block sparse pattern. Such a distribution featur
Externí odkaz:
https://doaj.org/article/ca4ee801a7ae4d4bb3213bbb10960092
Publikováno v:
The Journal of Engineering (2019)
Sliding spotlight synthetic aperture radar (SAR) is a hot imaging mode in space-borne SAR. It can acquire high-resolution and large azimuth scene size simultaneously. The main challenges for sliding spotlight SAR processing in real time are the huge
Externí odkaz:
https://doaj.org/article/1e72be52c510406fa62787e3eb0d0218
Publikováno v:
The Journal of Engineering (2019)
Matrix transposition is a very critical operation in synthetic aperture radar (SAR) imaging systems. This study presents an improved corner turning memory solution for real-time SAR imaging processing. Based on the sub-matrix three-dimensional mappin
Externí odkaz:
https://doaj.org/article/7e2c383f3fa2412db93881ac15a9cda3
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