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網(wǎng)絡(luò)頻展; 展頻; 擴展頻譜; 擴頻技術(shù); 展頻技術(shù)
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It is emphasized how to select the spread spectrum access code, and how to realize synchronization and modulation etc. 著重介紹了擴頻地址碼的選擇及實現(xiàn)、同步方式和解調(diào)方法等。
Low complexity multipath elimination technology in a spread spectrum system 擴頻系統(tǒng)中低復(fù)雜度多徑消除技術(shù)研究
Through the ***ysis of the spread spectrum and power line carrier spectrum, the authors design a set of remote reading system. 通過對擴頻通信和電力線載波通信特點的分析,設(shè)計實現(xiàn)了一套遠(yuǎn)程抄表系統(tǒng)。
Direct-sequence spread spectrum ( DSSS) takes a signal and "spreads" it over several frequencies, essentially creating redundant signals. 直接順序擴頻(DSSS)取出信號,把它散布到幾個頻率上,實質(zhì)上形成了冗余的信號。
Research and Realization of an Algorithm for Narrowband Interference Suppression in Spread Spectrum System 擴頻通信系統(tǒng)中抑制窄帶干擾算法研究及實現(xiàn)
Spread Spectrum Modulation Technique and Application in Radar System 擴頻調(diào)制技術(shù)及其在雷達系統(tǒng)中的應(yīng)用
Design of a high-precision data acquisition system in spread spectrum communications 擴頻通信中高精度數(shù)據(jù)采集系統(tǒng)的設(shè)計
The difference between UWB and the traditional direct sequence spread spectrum technology was ***yzed, and the simulation models of TH-IR and DS-IR systems were installed. 首先分析了超寬帶技術(shù)與傳統(tǒng)的直接序列擴頻技術(shù)的區(qū)別,然后建立了TH-IR和DS-IR超寬帶系統(tǒng)的仿真模型,得到兩種IR系統(tǒng)在多種干擾條件下的誤碼率性能。
Deriving from direct sequence spread spectrum, efficient spread spectrum can solve the inconsistency in transmission bandwidth and process gain, and improve the anti-jamming ability of the system. 高效擴頻技術(shù)是直接序列擴頻衍生而來的,能有效解決傳輸帶寬與處理增益之間的矛盾,提高系統(tǒng)的抗干擾能力,受到了越來越多的重視。
There are two main alternatives, Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum. 重要有兩種選擇,直接序列擴頻和跳頻擴頻。
Under strong interference environment for the burst-mode direct sequence spread spectrum system, the basic principles of spread spectrum Communication are performance parameters were introduced. 針對強干擾環(huán)境下的短時突發(fā)擴頻發(fā)射系統(tǒng),介紹了擴頻通信的基本原理和性能參數(shù),并以處理增益為指標(biāo)分析了突發(fā)直擴系統(tǒng)的抗干擾能力。
The current ***ysis focuses on the performance of BPSK modulation on2-dimensional spread spectrum system with single-tone jamming. 針對二進制相移鍵控調(diào)制的二維擴頻系統(tǒng),分析了其抗單音干擾的性能。
Image Multi-watermark Technology Based on Turbo Code and Spread Spectrum 基于Turbo碼和擴頻的圖像多水印技術(shù)
The error rate model is one of the key indexes of underwater acoustic spread spectrum communications system. 誤碼率模型是水聲擴頻通信系統(tǒng)性能的關(guān)鍵指標(biāo)之一。
Multi-Carrier Spread Spectrum Communication and Its Multi-User Detection Technology Research 多載波擴頻通信及其多用戶檢測技術(shù)研究
Anti-noise Performance of Chirp Spread Spectrum System Chirp擴頻通信系統(tǒng)抗噪聲性能研究
It uses Chirp Spread Spectrum technique to communicate and range. 該方法利用線性調(diào)頻擴頻技術(shù)進行通信并實現(xiàn)測距;
Spread spectrum has two distinct flavors: direct sequence and frequency hopping. 該技術(shù)有兩個明顯的變型:直接順序與跳頻。
Detection and Estimation of the Spread Spectrum Signal Using Parallel filter banks and High-Order Cumulants 基于并行濾波器組和高階累積量的擴頻信號檢測與估計
The principle of direct sequence spread spectrum ranging is introduced and the echo model of near field ranging is discussed. 論述了直接序列擴頻測距的原理,研究了近距離測距的回波模型。
The paper introduces the theory of self-encoded spread spectrum and proposes an improved approach to its self-interference. 介紹了自編碼擴頻的原理,針對其自干擾現(xiàn)象提出了改進方法。
First, the basic principles of power line communication and spread spectrum are introduced. 論文首先介紹了電力線載波通信和擴頻技術(shù)的基本原理。
Spread spectrum, frequency-hopped, which generates many codes over a wide frequency band. 它在很寬的頻帶上產(chǎn)生許多代碼。
Research on Passive Optical Network and Code Division Multiplexing Optical Access with Chaotic Spread Spectrum Sequences 無源光網(wǎng)絡(luò)和混沌擴頻碼分多址光接入研究
This paper mainly deal with the sink of the spread spectrum communication on power line. 本文主要負(fù)責(zé)電力線擴頻通信系統(tǒng)的接收部分。
The anti-interference capability of feebleness spread spectrum communication has already been ***yzed in some reference books. 有關(guān)微弱擴頻通信系統(tǒng)的抗干擾性能分析及誤碼率分析在很多書中已給出詳細(xì)的推導(dǎo)。
Application of wireless spread spectrum communication in seismic data acquisition system 無線擴頻技術(shù)在地震勘探數(shù)據(jù)采集系統(tǒng)中的應(yīng)用
Research on Array Pairs Correlation Theory and Its Application in Spread Spectrum Communication System 陣列偶相關(guān)理論及其在擴頻通信系統(tǒng)中的應(yīng)用研究
At present, spread spectrum technology has been extensively applied in the field of tactical anti-jamming communication. 擴展頻譜技術(shù)是抗干擾通信中的主要應(yīng)用技術(shù)。
Performance Analysis on Direct Sequence Spread Spectrum Communication System over Rayleigh Fading Channels 瑞利衰落信道下的直序擴頻通信系統(tǒng)性能分析