spectrum n. (pl. -tra ) 1.【物理學】譜,光譜;波譜;能譜,質譜。 2.【無線電】射頻頻譜;無線電(信號)頻譜。 3.【心理學】(眼睛的)余像;殘像。 4.〔轉義〕范圍,幅度;(連續(xù)的)系列。 an absorption spectrum 吸收(光)譜。 a bright line spectrum 線狀光譜。 an optical spectrum 光譜。 a solar spectrum 太陽光譜。 a wide spectrum of opinion 意見的不同幅度甚大。
technology n. 1.技術,工程,工藝。 2.制造學,工藝學。 3.術語(匯編)。 science and technology 科學和技術。 the technology of sugar 制糖法。
Spread spectrum technology is used to improve the security of watermark sequences 采用擴頻技術提高水印序列的安全性。
This paper introduces the application of the spread spectrum technology in communications 論文介紹了擴頻技術在通信中的運用。
The application status of near infrared reflectance spectrum technology in analyze of roughage feed 近紅外光譜技術在粗飼料分析中的應用現狀
An application of spread spectrum technology in deep space tracking telemetering amp; amp; control tt amp; amp; c system 擴頻技術在深空測控通信中的應用
Analysis of volatile and semi-volatile components in cut tobacco by thermal desorption-gas chromatography-mass spectrum technology 氣質聯(lián)用技術分析煙絲中揮發(fā)及半揮發(fā)性成分
In order to solve the problem of interference of power line, the spread spectrum technology is used in the system 同時,ssc(擴頻載波)的引入較好地解決了電力線的干擾問題。
Now one of the mostly applications of spread spectrum technology is the popular cdma mobile communication system 目前,擴頻通信技術的主要應用之一就是流行的cdma移動通信系統(tǒng)。
At the same time, this algorithm takes good use of digital spread spectrum technology to embed the watermarking repeatedly 同時,在嵌入水印時利用了數字擴頻技術,對水印進行多重嵌入。
The application of spread spectrum technology can increase dimension of signal in order to improve signal power and achieve code gain 擴頻技術的應用可以增加信號維數以提高信號功率也可獲得編碼增益。
At present, ferrous spectrum technology is a kind of wear monitoring technology which is widely used in oil-hydraulic grain analysis 摘要目前,鐵譜技術是一種廣泛使用的一項油液磨粒分析的磨損監(jiān)控技術。