Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Jongpil La"'
Publikováno v:
AIP Advances, Vol 14, Iss 8, Pp 085224-085224-8 (2024)
This paper advances an in situ method to measure the spectral linewidth directly from the currently generated wavelength-modulated signals in frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) systems, diverging from tradi
Externí odkaz:
https://doaj.org/article/0b10a2c934c2491eb1a837eec8d199ac
Autor:
Jongpil La
Publikováno v:
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF).
The optical frequency sweep linearization for the coherent FMCW laser radar system is addressed in this article. The optical frequency is linearized and locked to the external reference frequency signal by phase locked loop configuration.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::020748f32b6a0fdb768dc60d9abacdf3
https://doi.org/10.1364/sensors.2018.seth3e.5
https://doi.org/10.1364/sensors.2018.seth3e.5
Autor:
Byung In Choi, Jong Ung Lee, Seo Hyun Kim, Jun Ho Lee, Youngsoo Kim, Jongpil La, Sohyun Kim, Hyun-Sook Kim, Jinsuk Hong, Yeonsoo Kim
Publikováno v:
Light, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL).
We present a new fast dual band hyperspectral imager with wide field of view to be used in airborne remote sensing. To satisfy the requirement for high SNR, we have analyzed system, detector and optics. We have established wavefront error (WFE) budge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ebd3c3aeebd162521f7920e1f6353cc
https://doi.org/10.1364/hise.2018.hm4c.1
https://doi.org/10.1364/hise.2018.hm4c.1
Publikováno v:
International Journal of Optomechatronics. 8:147-158
High power fiber laser module of the transmitting channel for the designed LADAR (LAser raDAR) system has an angled endcap to avoid the direct reflection fed back to the source laser unit. However, the reference endcap design shows low manufacturabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcfafc6fdf7c602977cd1d871847607e
https://doi.org/10.1080/15599612.2014.915602
https://doi.org/10.1080/15599612.2014.915602
Publikováno v:
Journal of the Korea Institute of Military Science and Technology. 17:90-95
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::656fad35623af572be5890306cbf6603
https://doi.org/10.9766/kimst.2014.17.1.090
https://doi.org/10.9766/kimst.2014.17.1.090
Publikováno v:
Journal of the Korea Society of Computer and Information. 18:55-64
In this paper, the HILS (Hardware In-the-Loop Simulation) system to analyze and to verify the performance of the targeting pod is addressed. The main functions of the targeting pod is acquiring and tracking targets to guide a LGB (Laser Guided Bomb)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49f0cfabd1e289942c1d2d5b02bc9888
https://doi.org/10.9708/jksci.2013.18.12.055
https://doi.org/10.9708/jksci.2013.18.12.055
Publikováno v:
Key Engineering Materials. :43-46
A new synthetic heterodyne laser Doppler interferometer based on homodyne interferometer is addressed in this work. Interference signal includes the DC offset that is light intensity. The DC offset must be got rid because it does not need to obtain a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c2a4691eb196a50e5aa4e15ec8f784c
https://doi.org/10.4028/www.scientific.net/kem.381-382.43
https://doi.org/10.4028/www.scientific.net/kem.381-382.43
Publikováno v:
IFAC Proceedings Volumes. 37:599-604
The signal processing algorithm for a PSD(Position Sensitive Detector) using an amplitude modulation/demodulation algorithm is addressed in this paper. Dark currents and the external noises such as daylight and fluorescent lights are eliminated by us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::996f687aaf7dde613456a331de7e28d0
https://doi.org/10.1016/s1474-6670(17)31168-0
https://doi.org/10.1016/s1474-6670(17)31168-0
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 27:734-741
The vibration mode shape measurement technique utilizing a continuous scanning laser Doppler vibrometer(SLDV) is addressed in this paper. The continuous scanning capability is added to the conventional laser Doppler vibrometer by reflecting the laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9cb8c0a6c365d9bae87dc58fd129102
https://doi.org/10.3795/ksme-a.2003.27.5.734
https://doi.org/10.3795/ksme-a.2003.27.5.734
Publikováno v:
The Review of scientific instruments. 79(5)
The homodyne interferometer has the advantages of simple optical configuration and low cost. However, it requires a caution in using an electronic filter such as high pass filter (HPF) to get rid of low frequency electronic noises and the dc offset a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8da82f230143e7fec978e4a96cf1bee2
https://pubmed.ncbi.nlm.nih.gov/18513060
https://pubmed.ncbi.nlm.nih.gov/18513060