practical spreading造句
例句與造句
- Based on software radio technology practical spread spectrum communication construction of system and principle analysis
基于軟件無線電技術(shù)的實(shí)用擴(kuò)頻系統(tǒng)結(jié)構(gòu)及原理分析 - However , due to nonorthogonality of practical spreading sequences , the conventional correlator suffers from the near - far problem
最后，針對(duì)隨當(dāng)前網(wǎng)絡(luò)信息系統(tǒng)的不斷拓展與延伸，信息保密與安全的重要性日漸突出的問題。 - Cdma has become the main technology of the third generation mobiletelecommunication . many users in cdma system are distinguished by differentspread sequences and have the same time chip and frequency unlike in theconventional tdma system or fdma system . but the practical spread sequences cannot reach the ideal condition , the correlation function equals zero , so that it will causethe multiple access interference ( mai ) when lots of people are communicating . multi - user detection ( mud ) makes joint detection on the received signals by makingfull use of the information of all users ’ , which relaxes mai and increases the capacityof system
Cdma技術(shù)已經(jīng)成為第三代移動(dòng)通信系統(tǒng)中的主流技術(shù),它與傳統(tǒng)的fdma 、 tdma不同,在cdma系統(tǒng)中多個(gè)用戶均占用同一時(shí)隙、同一頻隙,所不同的是選取的地址碼不同,而實(shí)際選用的地址碼間的互相關(guān)函數(shù)又不可能全部達(dá)到理想狀態(tài)的全為零,因而造成了多個(gè)用戶同時(shí)通信時(shí),必然要產(chǎn)生多址干擾。 - It's difficult to find practical spreading in a sentence. 用practical spreading造句挺難的