- direct sequence CDMA
- Техника: многостанционный доступ с кодовым разделением каналов и прямым расширением спектра
Универсальный англо-русский словарь. Академик.ру. 2011.
direct sequence CDMA
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Direct-sequence code division multiple access — (DS CDMA) is a multiple access scheme based on direct sequence spread spectrum, by spreading the signals from/to different users with different codes. It is the most widely used type of CDMA. Click here for a detailed explanation … Wikipedia
Direct Sequence Spread Spectrum — (DSSS) ist ein Frequenzspreizverfahren für die drahtlose Datenübertragung. Die Idee hierbei ist, ein Ausgangssignal mittels einer vorgegebenen Bitfolge zu spreizen. Diese Bitfolge wird auch Spreizcode oder Chipping Sequenz genannt. Allgemeines… … Deutsch Wikipedia
Direct-sequence spread spectrum — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Direct Sequence Spread Spectrum — Pile de protocoles 7. Application 6. Présentation 5. Session 4. T … Wikipédia en Français
W-CDMA — (Wideband Code Division Multiple Access) is a type of 3G cellular network. W CDMA is the higher speed transmission protocol used in the Japanese FOMA system and in the UMTS system, a third generation follow on to the 2G GSM networks deployed… … Wikipedia
Chip (CDMA) — In digital communications, a chip is a pulse of a direct sequence spread spectrum (DSSS) code, such as a pseudo noise code sequence used in direct sequence code division multiple access (CDMA) channel access techniques. In a binary direct… … Wikipedia
Chaotic digital CDMA — was invented by Tao Yang and Leon O. Chua of the University of California, Berkeley in 1997. This is a chaotic spread spectrum CDMA communication technology where the message signal is first scrambled by an RF chaotic carrier and then sent to the … Wikipedia
Code division multiple access — This article is about a channel access method. For the mobile phone technology referred to as CDMA, see IS 95 and CDMA2000. Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM … Wikipedia
Multi-carrier code division multiple access — (MC CDMA) is a multiple access scheme used in OFDM based telecommunication systems, allowing the system to support multiple users at the same time. MC CDMA spreads each user symbol in the frequency domain. That is, each user symbol is carried… … Wikipedia
Channel access method — In telecommunications and computer networks, a channel access method or multiple access method allows several terminals connected to the same multi point transmission medium to transmit over it and to share its capacity. Examples of shared… … Wikipedia
многостанционный доступ с кодовым разделением каналов и прямым расширением спектра — Метод широкополосной передачи сигналов в CDMA системах, основанный на использовании двухступенчатой модуляции кодированного потока данных. На первом шаге модуляции кодированный поток данных модулирует несущую (обычно методом BPSK или QPSK), а на… … Справочник технического переводчика
