multiple adj. 1.多重的;復(fù)合的,復(fù)式的,多數(shù)的,多樣的。 2.倍數(shù)的,倍。 3.【電學(xué)】并聯(lián)的;多路的,復(fù)接的。 4.【植物;植物學(xué)】聚花的。 a man of multiple interests 興趣廣博的人。 n. 1.【數(shù)學(xué)】倍數(shù)。 2.【電學(xué)】并聯(lián);多路系統(tǒng)。 3.相聯(lián)成組。 4.成批生產(chǎn)的藝術(shù)品〔畫、雕塑、工藝品等〕。 common multiple 公倍數(shù)。 least common multiple 最小公倍數(shù)。
Space-time multiuser detection for ds-cdma communication in multiple input multiple output systems 直接序列碼分多址的多輸入多輸出系統(tǒng)中的空時(shí)多用戶檢測
Communicated with multi-antenna both at the transmitter and receiver, multiple input multiple output ( mimo ) could enlarge the channel capacity dramatically 多入多出(mimo)技術(shù)利用多天線發(fā)送和多天線接收,能夠成倍地提高通信系統(tǒng)的容量。
multiple input multiple output ( mimo ) technique can enhance the capacity and improve the performance of the wireless communication system [ 1 ] [ 2 ] [ 3 ] 多入多出(mimo)無線通信技術(shù)大大增加了無線通信系統(tǒng)的容量,改善了無線通信系統(tǒng)的性能[1][2][3]。
Proposes a novel algorithm of power allocation, called re-allocation of residual power ( rarp ), in the spatial multiplexing scheme of multiple input multiple output ( mimo ) system 摘要研究空間復(fù)用多輸入多輸出系統(tǒng)的功率分配問題,提出一種新的功率分配算法殘余功率再分配。
multiple input multiple output ( mimo ) technique, one of the most significant breakthroughs in communications field in recent years offers an effective diversity way to combat, even exploit fading mimo技術(shù)作為無線通信領(lǐng)域近年來最大的突破,利用信道多徑效應(yīng)為實(shí)現(xiàn)這一目標(biāo)提供了強(qiáng)有力的技術(shù)手段。
This paper established a mimo ( multiple input multiple output ) model of hydro-generator based on the multi-variable frequency control theory firstly, and then a decoupling design is proposed 本文采用多變量頻率域控制理論建立了水輪發(fā)電機(jī)組的mimo(multipleinputmultipleoutput)模型,并在此模型基礎(chǔ)上進(jìn)行解耦設(shè)計(jì)。
Some novel technologies are also proposed, such as two dimensional spread spectrum ( 2d-ss ), self-encoded spread spectrum ( sess ), multiple input multiple output ( mimo ), orthogonal frequency division multiplexing ( ofdm ) and so on 另外,對目前新興的一些抗干擾技術(shù),如二維擴(kuò)頻、超寬帶、多天線、自編碼擴(kuò)頻等技術(shù)也做了簡單分析。
multiple input multiple output ( mimo ) system is a great breakthrough in wireless communications, which can greatly increase the channel capacity and spectrum efficiency without occupying any more bandwidth 多輸入多輸出(mimo)系統(tǒng)是無線通信領(lǐng)域內(nèi)的重大突破。該技術(shù)能在不增加帶寬的情況下成倍地提高通信系統(tǒng)的容量和頻譜利用率,是新一代無線通信系統(tǒng)必須采用的關(guān)鍵技術(shù)。
In the severe interference environment of electronic warfare, it is important to suppress interference for reliability of information transmission . how to approach the capacity of distributed multiple input multiple output system is the key technique in beyond 3g 在電子戰(zhàn)的惡劣環(huán)境中,如何有效的抑制干擾是克敵制勝的前提;在分布式多輸入多輸出系統(tǒng)中,如何逼近其系統(tǒng)容量是下一代移動(dòng)通信系統(tǒng)的關(guān)鍵技術(shù)。
In next mobile communication system to suffice more and more high-speed data service and demand of qos ( quality of service ) many new wireless link layer transport technologies are going to be used such as mimo ( multiple input multiple output ), ofdm ( orthogonal frequency division multiplexing ), channel coding and acm ( adaptive coding modulation ) etc . low density parity check ( ldpc ) codes were first discovered in 1960 ’ s which belong to linear block codes with their parity matrix being sparse 下一代移動(dòng)通信系統(tǒng)為了滿足移動(dòng)用戶對高速、寬帶數(shù)據(jù)傳輸業(yè)務(wù)不斷增長和更高服務(wù)質(zhì)量的要求,采用了許多新的無線鏈路傳輸技術(shù),包括多天線發(fā)射和接收技術(shù)、正交頻分復(fù)用技術(shù)、信道糾錯(cuò)編碼技術(shù)和自適應(yīng)編碼調(diào)制技術(shù)等。上世紀(jì)60年代提出的低密度校驗(yàn)碼,是一種校驗(yàn)矩陣為稀疏矩陣的線性分組碼。