spread spectrum

基本解释

Moreover, many modern radio devices (such as mobile phones) rely on a technique called “spread spectrum” encoding.
而且，現在（使用的）無線電通訊裝置（比如手機）所依賴的主要是一種叫做“擴展頻譜”的通訊編碼方式。
It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
主要是數字調制系統、擴展頻譜通信原理和直接序列擴頻系統等內容。
Also, 802.11 maintained compatibility with the three most popular radio transmission types: direct sequence spread spectrum, frequency-hopping spread spectrum, and infrared.
11也保持了與三種最流行的無線電傳輸方式（直接順序擴頻、跳頻擴頻和紅外線）的兼容性。

Main.net uses a related technology called direct sequence spread spectrum, or DSSS, to send its signals down the power line.
FORBES: Technology
As you have said, in 1940 Hedy Lamar (Obituary, January 29th) and a film-score composer, George Antheil, developed the technology, then called spread spectrum.
ECONOMIST: Letters The

擴頻
Spread spectrum technology made it possible for greater spectrum sharing.
擴頻技術爲共享頻譜提供了可能。
擴譜
Spread spectrum communication systems often suffer strong narrowband interferences resulted from various factors.
在擴譜通信系統中,常常因爲各種原因而遭遇較強的窄帶乾擾。
展頻
擴展頻譜
擴散頻譜

擴頻
Spread spectrum technology is used to improve the security of watermark sequences.
採用擴頻技術提高水印序列的安全性。
擴展頻譜
A steganalysis algorithm that estimates the secret key used in sequential steganography of spread spectrum embedding is proposed.
論文提出了一種針對圖像擴展頻譜序列隱寫的密鈅估計算法。
擴譜
展頻
展開頻譜