OFDM(正交頻分復用)技術實際上是MCM(Multi-Carrier Modulation，多載波調制)的一種。其主要思想是，將信道分成若干正交子信道，將高速數據信號轉換成并行的低速子數據流，調制到在每個子信道上進行傳輸。正交信號可以通過在接收端采用相關技術來分開，這樣可以減少子信道之間的相互干擾(ICI)。每個子信道上的信號帶寬小于信道的相關帶寬，因此每個子信道上的可以看成平坦性衰落，從而可以消除符號間干擾。而且由于每個子信道的帶寬僅僅是原信道帶寬的一小部分，信道均衡變得相對容
標簽： Multi-Carrier Modulation OFDM MCM
上傳時間： 2017-09-03
上傳用戶：skfreeman
ISO document for car diagnostics over k-line.
標簽： diagnostics document k-line over
上傳時間： 2017-09-15
上傳用戶：luke5347
the driver of 12864 and it includes line
標簽： includes driver 12864 line
上傳時間： 2017-09-16
上傳用戶：wl9454
schedule, threads & multi Matrix
標簽： schedule threads Matrix multi
上傳時間： 2013-12-21
上傳用戶：66666
communication, line coding
標簽： communication coding line
上傳時間： 2014-01-05
上傳用戶：weiwolkt
nice document about the fast manipulation of multi-dimensional arrays in matlab,with some examples to avoid loops and using indices
標簽： multi-dimensional manipulation document examples
上傳時間： 2014-01-23
上傳用戶：edisonfather
Lukas Kanade Multi resolution program in matlab language.
標簽： resolution language program Kanade
上傳時間： 2017-09-25
上傳用戶：athjac
擬合直線Fitting a straight line
上傳時間： 2014-08-23
上傳用戶：zhoujunzhen
Multi-carrier modulation? Orthogonal Frequency Division Multi- plexing (OFDM) particularly? has been successfully applied to a wide variety of digital communications applications over the past several years. Although OFDM has been chosen as the physical layer standard for a diversity of important systems? the theory? algorithms? and implementation techniques remain subjects of current interest. This is clear from the high volume of papers appearing in technical journals and conferences.
標簽： COMMUNICATIONS MULTI-CARRIER DIGITAL
上傳時間： 2020-05-31
上傳用戶：shancjb
Since the principle of multi-carrier code division multiple access (MC-CDMA) was simultaneously proposed by Khaled Fazel et al. and Nathan Yee et al. at the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) in the year 1993, multi-carrier spread spectrum (MC-SS) has rapidly become one of the most wide spread independent research topics on the field of mobile radio communications. Therefore, the International Workshop on Multi-Carrier Spread Spectrum (MC-SS) was initiated in the year 1997. Multi-carrier and spread spectrum systems with their generic air interface and adaptive technologies are considered as potential candidates to fulfill the requirements of next generation mobile communications systems.
標簽： Multi-Carrier Spectrum Spread 2007
上傳時間： 2020-05-31
上傳用戶：shancjb
