Zobrazeno 1 - 10
of 4 412
pro vyhledávání: '"Ambiguity function"'
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 35, Iss 1, Pp 1-11 (2024)
Abstract The delay-Doppler map (DDM) is the signal power distribution of the Coarse/Acquisition code (C/A code) of the received Global Navigation Satellite System (GNSS) signal in different code phase delay and Doppler frequency. When the received si
Externí odkaz:
https://doaj.org/article/5f3aaf85fd514407af71a371113d01a6
Publikováno v:
Radioengineering, Vol 33, Iss 2, Pp 282-298 (2024)
Interrupted sampling repeater jamming (ISRJ) is an advanced coherent jamming, and the suppression of this jamming has become a critical problem for modern radar electronic countermeasure. In this paper, we propose a countermeasure based on linear int
Externí odkaz:
https://doaj.org/article/8100a926969c4491b041485ec7d96ca0
Publikováno v:
Radioengineering, Vol 33, Iss 1, Pp 62-74 (2024)
This study aimed to investigate the performance of Multicarrier Phase Coding (MCPC) and P4-encoded waveforms. Researchers explored the unique properties of these signals, focusing on aspects like phase distribution, autocorrelation, power spectral de
Externí odkaz:
https://doaj.org/article/d6db1dabc9b6434e9b3b3b40f0626c71
Autor:
Sabaria Sabaria, Syahfrizal Tahcfulloh
Publikováno v:
Jurnal ELTIKOM: Jurnal Teknik Elektro, Teknologi Informasi dan Komputer, Vol 7, Iss 2, Pp 200-209 (2024)
The most important radar system performance is determining the range-velocity of the detected target. This performance is obtained from processing an ambiguity-function (AF) between signals from target reflections and radar radiation signals. Selecti
Externí odkaz:
https://doaj.org/article/81d080cc39634a1285d5c93cb473fd7d
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 174-186 (2024)
Due to the mismatch between transmit waveforms and receive filters, Cross-Ambiguity Function (CAF) shaping plays an important role in the design of cognitive radar waveforms and allows more freedom for waveform optimization problem than conventional
Externí odkaz:
https://doaj.org/article/717fcd9cf5734051ab9b131e48a39219
Autor:
Karol Abratkiewicz, Zbigniew Gajo
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15255-15268 (2024)
This article deals with practical considerations on signal processing in passive radars. First, the Zak transform is used to approximate the cross-ambiguity function (CAF) commonly applied in passive coherent location (PCL). Next, an efficient method
Externí odkaz:
https://doaj.org/article/d2adf5cc60c041dfa1186fadfc94b572
Publikováno v:
Sensors, Vol 24, Iss 22, p 7168 (2024)
When there are time division multiple access (TDMA) signals with large bandwidth, waveform aliasing, and fast frequency-hopping in space, current methods have difficulty achieving the accurate localization of radiation sources and signal-sorting from
Externí odkaz:
https://doaj.org/article/731961e5add644f7b2d5b0269e3aa62c
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 12, Pp 1863-1873 (2023)
Abstract The transmit waveform with ambiguity function specifications in the range‐Doppler plane has been of great interest in traditional single antenna radar systems in recent years. This paper considers the design of waveform sets with a desired
Externí odkaz:
https://doaj.org/article/348ffd160d5e411e8981db07c029ee04
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