Results 111 to 120 of about 4,863,781 (309)
, 2007 Iterative decoding (ID) aided fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using clipped combining in multiple access (MA) channels is investigated. All users’ data are convolutionally encoded and the encoded bits are interleaved and
Ng, S.X. +7 more
core +2 more sources
Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol
Advanced Robotics Research, EarlyView.Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong +2 more
wiley +1 more source
Design And Development Of A Secure Wireless System Using Frequency Hopping Spread Spectrum [TK5103.2. A148 2007 f rb]. [PDF]
, 2007 Dalam penyelidikan ini, satu sistem tanpa wayar automasi untuk menghantar data yang bersertakan kod PN secara automatik kepada pihak berkuasa berkenaan telah dibangunkan.
Yahya, Abid
core +1 more source
Implementasi Hybrid DS/FH Spread Spectrum menggunakan DSK TMS302C6416T
Jurnal Teknik ITS, 2014 Spread spectrum adalah sebuah metode komunikasi dimana semua sinyal komunikasi disebar di seluruh spektrum frekuensi yang tersedia. Sinyal informasi akan ditebarkan pada seluruh pita frekuensi yang disediakan dan dilakukan secara acak.
Aji Wisnu Laksita +2 more
doaj
Detection and classification of frequency-hopped spread spectrum signals
, 2018 This dissertation proposes a means of defeating Frequency-Hopped (FH) spread spectrum modulation using an intercept receiver capable of fast emission detection and classification. By continuously analyzing the spectrum and classifying detected emissions, the receiver is capable of following a FH signal as it changes frequency.
openaire +3 more sources
Perancangan dan Realisasi Pemancar Slow Frequency Hopping Spread Spectrum [PDF]
, 2009 ABSTRAKSI: Frequency hopping merupakan salah satu teknik spread spectrum dimana proses penebarannya dilakukan dengan mengubah-ubah frekuensi pembawanya dengan pola yang ditentukan oleh kode penebar.
Dedy Subkhan
core
Advanced Science, EarlyView.In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu +5 more
wiley +1 more source
Optimal One-Coincidence Sequence Sets with a Large Alphabet and Prime Length
MathematicsThe performance of a frequency-hopping spread-spectrum system is mainly dependent on the mathematical properties of its hopping sequences, which are designed to minimize interference between different users. The one-coincidence sequence frequency-hopping
Jin-Ho Chung, Duehee Lee, Dongsup Jin
doaj +1 more source
Frequency-hopping spread spectrum (FHSS) simulation [PDF]
, 2010 This graduate project focuses on a frequency hopping spread spectrum (FHSS) communication system between a transmitter and a receiver in the presence of a jammer. It further describes the method used to employ frequency hopping to successfully transmit a
Lutfi, Michael A.
core
Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
wiley +1 more source