نتایج جستجو برای: dsss
تعداد نتایج: 513 فیلتر نتایج به سال:
wireless communication is the major form of connection nowadays. in most cases it exploits the benefits of the spread spectrum techniques to overcome channel introduced corruptions like doppler residual frequency, noise, interference and jamming. these techniques also enhance the security and quality of the link. using long spreading pseudo-noise codes provides further security for the link tho...
This article demonstrates the feasibility of a new computer technology, decision support systems (DSSs), to assist counselors with their clients in choosing a college major:
The influence of microwave oven interference on IEEE802.11 Wireless Local Area Network (WLAN) performance is a significant factor because they share common spectrum in the 2.400 2.4835 GHz Industry, Science, and Medicine (ISM) band. FCC regulations permit radiated power of up to 1 watt in this band provided spread spectrum techniques are employed. Spread spectrum methods facilitate multiple use...
In non-cooperative scenarios, the spreading sequences or waveforms of direct sequence spread spectrum (DSSS) signals is unknown to receiver. This paper focuses on addressing problem blind estimation waveform under multipath channels. scenario signal path transmission, can be directly obtained based estimated waveforms. However, in presence channels, becomes convolution and channel response, thu...
Globalization is influencing several agriculture aspects: market globalization has increased export from producing to consuming countries where different food safety or pesticide residue regulations apply, and has raised awareness of global problems linked to agriculture production (i.e., chemical pesticide pollution). Pests, diseases and weeds may cause significant damages to growers and the c...
OBJECTIVES This survey aims at highlighting the latest trends (2012-2014) on the development, use, and evaluation of Information and Communication Technologies (ICT) based decision support systems (DSSs) in medicine, with a particular focus on patient-centered and personalized care. METHODS We considered papers published on scientific journals, by querying PubMed and Web of ScienceTM. Include...
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