المؤلفون: Hervas García, Marcos Antonio

المساهمون: University/Department: Universitat Ramon Llull. ETSEEI LA SALLE - Comunicacions i Teoria del Senyal

مرشدي الرسالة: Pijoan Vidal, Joan Lluís, Alsina Pagès, Rosa Maria

المصدر: TDX (Tesis Doctorals en Xarxa)

مصطلحات موضوعية: High Frequency (HF), Ionospheric Communications, Hostile Channel, Sounding, Direct-Sequence Spread Spectrum (DSSS), Orthogonal Frequency Division Multiplexing (OFDM), Single Carrier Frequency Domain Equalization (SC-FDE), Single Carrier Frequency Division Multiplexing Access (SC-FDMA), Enginyeria i Arquitectura

الوقت: 621.3

وصف الملف: application/pdf

الوصول الحر: http://hdl.handle.net/10803/359395Test

المؤلفون: Bergadà Caramés, Pau

المساهمون: University/Department: Universitat Ramon Llull. EALS - Electrònica

مرشدي الرسالة: Regué, Joan Ramon, Pijoan Vidal, Joan Lluís

المصدر: TDX (Tesis Doctorals en Xarxa)

مصطلحات موضوعية: High Frequency, Ionosphere, Digital communications, Direct Sequence Spread Spectrum, Sky-wave propagation, Orthogonal Frequency Division Multiplexing, Multipath spread, Doppler spread, Signal to Noise Ratio, Enginyeria i Arquitectura

الوقت: 621.3

وصف الملف: application/pdf

الوصول الحر: http://hdl.handle.net/10803/285837Test

المؤلفون: Nenad M. Stojanović, Branislav M. Todorović, Vladimir B. Ristić, Ivana V. Stojanović

المصدر: Vojnotehnički Glasnik, Vol 72, Iss 2, Pp 790-813 (2024)

مصطلحات موضوعية: radiocommunications, military communications, cellular mobile systems, spread spectrum, direct sequence, global positioning system, underwater acoustic communications, unmanned aerial vehicles, wireless fidelity, zigbee, Military Science, Engineering (General). Civil engineering (General), TA1-2040

وصف الملف: electronic resource

العلاقة: https://scindeks.ceon.rs/article.aspx?artid=0042-84692402790STest; https://doaj.org/toc/0042-8469Test; https://doaj.org/toc/2217-4753Test

الوصول الحر: https://doaj.org/article/d1b5cd600c0943bfb3e8fbd48eb15707Test

المؤلفون: Chengyao Tang, Tailai Wen, Zhengyu Liang, Xinping Xu, Weihua Mou

المصدر: ICT Express, Vol 9, Iss 4, Pp 589-594 (2023)

مصطلحات موضوعية: Acquisition, Burst direct-sequence (DS) spread-spectrum transmission, Parallel code-phase acquisition, Sparse factor, Information technology, T58.5-58.64

وصف الملف: electronic resource

العلاقة: http://www.sciencedirect.com/science/article/pii/S2405959522000649Test; https://doaj.org/toc/2405-9595Test

الوصول الحر: https://doaj.org/article/b492bb4e79a84170a0eb5bfe7dedbd04Test

المؤلفون: Yuan Sun, Danyang Hong, Dong Liu, Jinyu Lei

المصدر: Journal of Marine Science and Engineering, Vol 12, Iss 6, p 948 (2024)

مصطلحات موضوعية: polar codes, chaotic phase modulation direct-sequence spread spectrum, adaptive decoding, SCL decoder, underwater acoustic communications, Naval architecture. Shipbuilding. Marine engineering, VM1-989, Oceanography, GC1-1581

وصف الملف: electronic resource

العلاقة: https://www.mdpi.com/2077-1312/12/6/948Test; https://doaj.org/toc/2077-1312Test

الوصول الحر: https://doaj.org/article/ec64bcdce87744689c11c72e28af88c0Test

المؤلفون: Yuzhong Zhang, Zhenyi Zhao, Xinglong Feng, Tianyi Zhao, Qiao Hu

المصدر: Biomimetics, Vol 9, Iss 2, p 103 (2024)

مصطلحات موضوعية: weak electric fish, direct sequence spread spectrum, binary phase shift keying modulation, electric field communication, Technology

وصف الملف: electronic resource

العلاقة: https://www.mdpi.com/2313-7673/9/2/103Test; https://doaj.org/toc/2313-7673Test

الوصول الحر: https://doaj.org/article/22e02b00b47b4239911b8d82184f444dTest

المؤلفون: Leroy, Clément, Arbi, Tarak, Pasquero, Oudomsack, Pierre, Geller, Benoit

المساهمون: Unité d'Informatique et d'Ingénierie des Systèmes (U2IS), École Nationale Supérieure de Techniques Avancées (ENSTA Paris), DGA Maîtrise de l'information (DGA.MI), Direction générale de l'Armement (DGA), AID CIEDS

المصدر: MILCOM ; https://hal.science/hal-04207949Test ; MILCOM, Oct 2023, Boston (Massachusetts), United States

مصطلحات موضوعية: Physical layer encryption Direct-Sequence Spread Spectrum (DSSS) Multiple Input Single Output (MISO), Physical layer security PLS, Direct-Sequence Spread Spectrum (DSSS), [SPI]Engineering Sciences [physics], [MATH]Mathematics [math]

جغرافية الموضوع: Boston (Massachusetts), United States

الوقت: Boston (Massachusetts), United States

العلاقة: hal-04207949; https://hal.science/hal-04207949Test; https://hal.science/hal-04207949/documentTest; https://hal.science/hal-04207949/file/MILCOM%201570923666%20final%20.pdfTest

الإتاحة: https://hal.science/hal-04207949Test
https://hal.science/hal-04207949/documentTest
https://hal.science/hal-04207949/file/MILCOM%201570923666%20final%20.pdfTest

المؤلفون: Fabio Schartmuller, Michael Hauser, Alexander Kuttner, Horst Zimmermann, Michael Hofbauer

المصدر: IEEE Photonics Journal, Vol 15, Iss 6, Pp 1-8 (2023)

مصطلحات موضوعية: Indirect time-of-flight, direct-sequence CDMA, multi-access, multipath resolution, SPAD, gold codes, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467

وصف الملف: electronic resource

العلاقة: https://ieeexplore.ieee.org/document/10330572Test/; https://doaj.org/toc/1943-0655Test

الوصول الحر: https://doaj.org/article/131e73f4f44b447e89f9c58b845a2965Test

المؤلفون: Diana Cristina Gonzalez, Claudio Ferreira Dias, Eduardo Rodrigues De Lima, Yonina C. Eldar, Muriel Medard, Michel Daoud Yacoub

المصدر: IEEE Access, Vol 11, Pp 24986-24994 (2023)

مصطلحات موضوعية: Direct-sequence spread, peaky frequency-shift keying, probability of interception, wideband channel, Electrical engineering. Electronics. Nuclear engineering, TK1-9971

وصف الملف: electronic resource

العلاقة: https://ieeexplore.ieee.org/document/10064360Test/; https://doaj.org/toc/2169-3536Test

الوصول الحر: https://doaj.org/article/a4ee65c9e94545a5af83ef5a0c17be3fTest

المؤلفون: Hu, Suyang (AUTHOR), Wang, Li (AUTHOR), Mao, Jianmei (AUTHOR), Gao, Chuang (AUTHOR), Zhang, Bin (AUTHOR), Yang, Shanshui (AUTHOR)

المصدر: IEEE Transactions on Industrial Electronics. Apr2019, Vol. 66 Issue 4, p3217-3226. 10p.

مصطلحات موضوعية: *CHAOS theory, *AIRCRAFT power systems, DIRECT sequence spectrum spread (Telecommunications), SYNCHRONOUS circuits, CHAOTIC communication, INTERMITTENT-motion mechanisms