美 英 un.直接序列扩谱通信 英汉 un. 1. 直接序列扩谱通信 例句 释义: 全部,直接序列扩谱通信
aDirect sequence spread spectrum transmissions (DS-SS) are now widely used for secure communications,as well as for multiple access. They have many interesting properties, including low probability of interception. Indeed, DS-SS transmitters use a[translate] ...
A direct sequence spread spectrum transceiver using a differentiation detection type and an integrated and short code is provided to reduce the influence of frequency error by employing differentiation detection method in a receiver by using short code word. A DSSS transmission unit(100) is comprised...
Direct sequence spread spectrum (DSSS) is a transmission technology used in local area wireless network transmissions. In this technology, a data signal at the sending station is combined with a high data rate bit sequence, which divides user data based on a spreading ratio. Advertisements The ...
Direct-Sequence Spread Spectrum Systems Let us consider the transmission of a binary information sequence by means of binary PSK. The information rate is R bits per second, and the bit interval is Tb = 1 / R seconds. The available channel bandwidth is Be hertz, where Be » R. At the ...
the processing gain and the coding gain can be used to enable many DS spread spectrum signals to occupy the same channel bandwidth, provided that each signal has its own pseudorandom (signature) sequence. Thus it is possible to have several users transmit ...
网络直接序列扩频;直接序列展频 网络释义
The objective of this lab experiment is tolearn the fundamentals of the directsequence spread spectrum and code division multiple address techniques.To get familiar with thedirectsequence spread spectrummodulator and demodulator. And thedirectsequence spread spectrumsystem can be shown as: Figure 1. Di...
The authors discuss the construction and evaluation of the performance of a direct-sequence spread spectrum (DSSS) system. The system uses a special type of injection-locked oscillator called a synchronous oscillator for code synchronization. The DSSS system was constructed in a manner that provides ...
1 扩频通信的论文翻译Frequency Hopping Spread Spectrum (FHSS) vs. Direct Sequence Spread Spectrum (DSSS)in Broadband Wireless Access (BWA)and Wireless LAN (WLAN) by Sorin M. SCHWARTZ Director, Training & Documentation Scope In 1997 IEEE defined the 802.11 Wireless LAN (WLAN) standard, intended to...