Results 1 to 10 of about 1,403,263 (162)

Code-Time Diversity for Direct Sequence Spread Spectrum Systems [PDF]

open access: yesThe Scientific World Journal, 2014
Time diversity is achieved in direct sequence spread spectrum by receiving different faded delayed copies of the transmitted symbols from different uncorrelated channel paths when the transmission signal bandwidth is greater than the coherence bandwidth ...
A. Y. Hassan
doaj   +2 more sources

Blind Estimation of Spreading Sequence and Data Bits in Direct-Sequence Spread Spectrum Communication Systems

open access: yesIEEE Access, 2020
At the transmitter of a Direct Sequence Spread Spectrum (DSSS) communication system, data bits are spread using a spreading sequence. To demodulate the transmitted data bits, the received signal should be de-spread using the same spreading sequence ...
Hoesang Choi, Hichan Moon
exaly   +3 more sources

Generalizable Direct Protein Sequencing With InstaNexus. [PDF]

open access: yesMol Cell Proteomics
Accurate determination of protein sequences is central to biology. Protein-based therapeutics, such as antibodies and nanobodies, are not encoded in reference genomes, challenging their accurate characterization via standard proteomics. Current methods rely on indirect inference, fragmented outputs, and labor-intensive workflows, which hinder ...
Reverenna M   +14 more
europepmc   +3 more sources

Blind Demodulation of Chaotic Direct Sequence Spread Spectrum Signals Based on Particle Filters

open access: yesEntropy, 2013
Applying the particle filter (PF) technique, this paper proposes a PF-based algorithm to blindly demodulate the chaotic direct sequence spread spectrum (CDS-SS) signals under the colored or non-Gaussian noises condition.
Shaojing Su, Zhang Yimeng
exaly   +3 more sources

Improving Signal Security of Secondary Surveillance RADAR by Using Direct Sequence Spread Spectrum Technology [PDF]

open access: yesعلوم و فنون نظامی, 2020
Secondary radars are important equipment in the aviation industry. The basis of this system is the use of the L-band Q&A system for aircraft identification.
Jafar Khalilpur, Mohammad Farahmand rad
doaj   +1 more source

Direct oligonucleotide sequencing with nanopores [PDF]

open access: yesOpen Research Europe, 2020
Third-generation DNA sequencing has enabled sequencing of long, unamplified DNA fragments with minimal steps. Direct sequencing of ssDNA or RNA gives valuable insights like base-level modifications, phosphoramidite synthesis yield estimates and strand quality analysis, without the need to add the complimentary strand.
Chalapati, Sachin   +3 more
openaire   +4 more sources

Direct RNA sequencing [PDF]

open access: yesNature, 2009
Our understanding of human biology and disease is ultimately dependent on a complete understanding of the genome and its functions. The recent application of microarray and sequencing technologies to transcriptomics has changed the simplistic view of transcriptomes to a more complicated view of genome-wide transcription where a large fraction of ...
Fatih, Ozsolak   +9 more
openaire   +3 more sources

Performance of Direct Sequence Spread Spectrum System (DSSSS) in Presence of Single and Multi Tone Jamming [PDF]

open access: yesEngineering and Technology Journal, 2013
There are various impairments or problems on direct sequence spread spectrum communication channel especially jamming problems, in order to focus on this problem a direct sequence spread spectrum(DSSS) communication system using Gold code was used as ...
Sadiq Kamel Gharkan   +2 more
doaj   +1 more source

Sequence Alignment on Directed Graphs [PDF]

open access: yesJournal of Computational Biology, 2017
Abstract Genomic variations in a reference collection are naturally represented as genome variation graphs. Such graphs encode common subsequences as vertices and the variations are captured using additional vertices and directed edges. The resulting graphs are directed graphs possibly with cycles.
Vaddadi Naga Sai Kavya   +3 more
openaire   +2 more sources

Direct Speech-to-Speech Translation with a Sequence-to-Sequence Model [PDF]

open access: yesInterspeech 2019, 2019
Accepted to Interspeech ...
Ye Jia   +6 more
openaire   +2 more sources

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