線性多路傳輸 的英文怎麼說
中文拼音 [xiànxìngduōlùzhuànshū]
線性多路傳輸
英文
linear multiplex- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 傳 : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
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A mesoscopic transmission line composed with periodic series of lc circuits is studied in this paper
摘要研究由多個單元電感電容迴路周期性連接而成的介觀傳輸線路。By the network, a optional nonlinear input - output mapping relationship can be realized. concrete mapping relationship materialize at the distributed linking weight values between neurons that build up the ann. due to the strong self - adaptability and self - learning - ability as well as excellent and robustness and tolerance ability, it can not only replace many traditional algorithm which is very complicated and timeconsuming, but also, because the processing to information is more close to person ' s thought activity habit, it provides a new way for solving the prediction of nonlinear system and unknown model
通過這種網路能夠實現任意的非線性輸入輸出映射關系,具體的映射關系體現在構成網路的神經元之間的分佈連接權上,由於網路具有很強的自適應和學習能力以及魯棒性和容錯能力,它不僅可以替代許多復雜耗時的傳統演算法,並且由於它對信息的處理更加接近於人的思維活動習慣,為解決非線性系統模擬和未知模型的預測提供了新途徑。In this paper, we first analyze each factor of influencing threshing performance, and deficiency of all traditional methods such as single factor, orthogonal experiment, variance analysis and regression analysis, which have been used to study the threshing performance. in the basis of above analysis, we propose a new method of threshing performance modeling - a bp neural network. by use the new ways of threshing performance modeling - a bp neural network, we can obtain the optimum model of threshing performance, which can better describe the seed - husking plant ' s feature of complex nonlinear, multi - input - output and indefinite
本文首先分析了影響脫粒裝置性能的各個因素以及傳統研究脫粒性能的各種方法如單因素法、正交試驗法、方差分析法以及回歸分析法的缺陷,在此基礎上提出了採用bp神經網路對脫粒裝置性能模型進行優化,採用這種方法優化脫粒裝置性能模型可以更好地刻劃脫粒裝置所具有的多輸入多輸出、復雜非線性以及不確定性等特徵。One of the most important events in the history of the development of tv technologies is the implementation of digital compression technology, which leads tv industry into a new rapidly developing stage. with satellite, cable and terrestrial transmission channels, dvb, of which the digital compression is the core technology, has such features as two - way channels, interactive functions, etc. in dvb system, the information of video, audio and text is digitalized and integrated to form a new kind of tv program. furthermore, through online digital information broadcasting, people can browse information of other programs while watching several programs just as they have done on the internet
電視技術發展史上最重要的里程碑是數字壓縮技術的廣泛應用,它將電視事業帶入一個新的高速發展時期,以數字壓縮為核心技術的數字電視廣播通過衛星有線和地面傳輸具有多功能雙向傳輸交互性等特點,不僅將圖像聲音和文字等信息數字化,而且將有關信息相互鏈接並有機地結合在一起形成了新的節目形態,特別是其採用了數字信息在線廣播方式,觀眾在收看到多套節目的同時還可以像訪問網際網路那樣瀏覽其它節目信息。Summaries are made concerning the typical network optimization problem. the paper independently puts forward several optimal methods to improve network traffic transmission, such as the maximum - flow problem over mpls, including the arc - based and path - based solution, which adopt the method of splitting and unsplitting traffic, the solution to the greatest reliability of transmission, the solution to concurrent maximum - flow for load balance via linear programming. on the basis of mpls path protection several protection methods over mpls are proposed, including n - to - 1, n - to - m protection solution in splitting and unsplitting cases and in diffserv cases, whose partial simulation results are provided as well
即: 1 ) mpls網路最大流傳輸問題,包括基於弧的最大流解決方案、基於路徑的最大流解決方案,分流與不分流的最大流處理方法以及多源多匯最大流解決方案; 2 )最大可靠性傳輸問摘要博士論文題: 3 )基於弧的求解流量負載平衡問題的線性規劃方法; 4 )基於路徑的流量負載平衡方法以及其他負載均衡問題; 5 )在mpls路徑保護的思想和方法的基礎上,提出了基於mpls的若干新的路徑保護方法,即n一t 。The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的,通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現,定向天線的應用,相比全向天線可明顯提高網路的總的吞吐量,減少通道干擾、多址干擾,提高信干噪比,且由於定向天線的高增益可實現較遠距離、較少跳數的通信,減少了路由發現時間,這樣大大減小了傳輸時延,網路的整體性能得到了不同程度的提高,同時部分地解決安全問題,通過功率控制還可較容易的實現節能的目的。The engine controller is in fact a multi - dimensional, complicated non - linear mapping device of the inputs and outputs. therefore with the ability of mapping non - linear and complex functions, the multi - layer forward neural network can be used to establish these relationships based on the experimental data
發動機控制器實際上就是一個多維的、復雜的傳感器輸入與控制量輸出的非線性映射裝置,因此,可以利用多層前向網路所具有的映射復雜非線性函數的性能,在大量數據的基礎上建立起該映射關系。A simulation and modeling mechanism is studied and proposed for multirate transmission protocol. based on the wlan that adopts ofdm transmission technique, we first assumed that the small - scall fading and multipath in ofdm sub - channel is rayleigh, and large - scale path loss could be described by bi - linearity model, and then we analyzed the rationality
基於採用ofdm傳輸技術的wlan ,我們假設ofdm子通道的小尺度衰落服從rayleigh分佈,路徑損耗可以用雙線性模型描述,並對假設的合理性進行了分析,將決定速率切換的誤幀率等物理層性能參數和媒質控制協議有機地結合在一起,對多速率傳輸建模進行了有意的探索。The unified power flow controller ( upfc ) is one of the most enterprising realizations of the idea of flexible ac transmission system ( facts ). having the ability of controlling most of the basic power system parameters, upfc can flexibly adjust the real and reactive power through the transmission line, damp the oscillation, and enhance the stability of power system and so on
統一潮流控制器( upfc )是靈活交流輸電系統中最有代表性的成員,具備控制多種電力系統參數的能力,因而可以靈活地調節線路有功和無功功率、阻尼系統振蕩、增強電力系統的穩定性和提高輸電線路的傳輸極限。Aiming at the control feature of large ship, the authors designed a 2 - rank derivative multi - step neural network predictive model and the algorithm of the large delay ship ' s course, and presented a fuzzy control autopilot scheme based on the model with rbf neural network and fcmac controller, it solved problems of model online identification and controller online design in traditional adaptive control, so that the high precision output follow - up control of large ship with large delay and uncertain nonlinear features can be realized
摘要針對大型船舶控制特性,設計了船舶航向的神經網路二階導數多步預測模型及其辨識和預測演算法,提出基於徑向基函數神經網路多步預測模型和模糊小腦模型關節神經網路控制器的大時滯船舶航向模糊控制自動舵方案,解決傳統自適應控制中模型的在線辨識和控制器的在線設計問題,以達到對具有大時滯、不確定非線性特性的大型船舶實現高精度輸出跟蹤控制。The technology of direct sequence spread spectrum / code division multipul access ( dsss / cdma ) are applied in the broadband code division multiplex wireless communication systems, which means transmitting data at the rate of 2. 048mbps using four e1 lines within the band of 20mhz. in this paper, the theory of the whole debice is first analysized specified for the system asic design and optimizing its performance
寬帶碼分復用無線傳輸系統是採用直接序列擴頻/碼分多址( dsss / cdma )技術,在20mhz頻帶內實現四路2 . 048mbps的e1鏈路數據速率的無線傳輸。本文首先分析了整個數傳設備實現原理,針對系統asic設計和優化整機集成性能出發,提出並實現了基於fpga控制pm4314e1晶元的介面模塊完成對e1鏈路信號的監控和告警功能的改進方案。We can use the messages exchanged between an external application module and the wavecom gsm mobile station, based on at commands to transport data in many field areas, such as mobile vehicle monitor system, lab monitor, remote maintenance system, mobile data query, data collection system, mobile pos machine, mobile charge system, mobile 1c card telephone, fixation wireless input application, mobile data and internet input. the wireless remote controller composed of gsm short message makers the control of remote facilities has come true
基於這種模塊,以gsm網路作為無線傳輸網路,可以開發出多種前景極其樂觀的各類應用,如: gps / gsm ( sms )移動車輛監控定位系統的應用;機房監控、基於gsm短消息業務的無線監控系統的開發設計遠程維護系統的應用;移動性數據查詢證券交易和信息查詢;數據採集系統的應用:移動叩s機,移動收費系統:移動ic卡電話、固定無線接入的應用:移動性數據和internet接入。The problem of noise is a chief block to restrict the popularity and developement of the plc because of the irregularity of power line network, the randomness of transmission distrance and load facility diversities
由於低壓范圍內電力線網路的非規則性、傳輸距離的隨意性、以及電力線上負載變化的多樣性,使得干擾問題成為制約低壓電力線載波通信發展和普及的主要障礙。In order to improve reliability and simplify the hardware design, many new i2c bus elements were used to realize binary input, logic output, clock functions and storing settings and reports. by simulating i2c bus data transfer, the mcu realized writing and reading data from each element the whole hardware system ' s structure is compact and reasonable, and the device has high reliability, stability and immunity to disturbance
從提高可靠性和簡化電路的角度出發,設計硬體電路板時使用了許多新型i ~ 2c串列介面器件, mcu用普通i / o口模擬i ~ 2c總線介面,由軟體模擬i ~ 2c總線數據傳輸過程,實現了開入開出、定值存儲、報告存儲和時鐘對時等功能。Specifically, for the first time all factors impairing tcp performance are identified based on network protocol hierarchy, i. e., lossy wireless channel at the physical layer ; excessive contention and unfair access at the mac layer ; frail routing protocol at the network layer, the mac layer and the network layer related mobile node ; unfit congestion window size at the transport layer and the transport layer related asymmetric path
Tcp是一種面向連接的可靠傳輸層協議,最初是針對有線網路設計的。由於有線網路鏈路可靠性高,傳統tcp認為丟包和亂序是由網路擁塞所導致。然而,在manets中,眾多非擁塞因素導致了丟包和亂序。Right now, axcen photonics corp can offer the optical transceivers including gbic, sfp single - mode and multiple - mode optical transceivers for optical data communication, telecommunication, cable tv systems. furthermore, the optical transceivers for long - distance 1000base - lhx and 1000base - zx applications are offered as well. in order to meet the needs of clients, the transmission speed of the optical transceivers ranges from 155mpbs oc - 3, 2. 488gbps oc - 48, fiber channel, gigabit ethernet, fast ethernet, 4x fiber channel, sfp copper
創威光電整合了光機電等專業人才,從半導體雷射的封裝製程,特性量測到整體光收發器的設計與製造皆已完成開發及量產的階段,目前可提供應用於數據通信,電信通訊,有線電視系統及光纖數據迴路等用途的多款光收發器,其產品包括:單模與多模gbic , sfp光收發器及長距離應用於1000base - lhx , 1000base - zx等光收器,就傳輸速率而言,目前創威光電可提供從155mbps oc - 3 , 2 . 488gbps oc - 48 , fiber channel , gigabit ethernet , fast ethernet , 4 x fiber channel , sfp copper等不同速率產品,以迎合顧客需求,另外,本公司亦可配合客戶要求,提供客制化產品設計及製造。In order to ensure the safety running of the key machine in the plant, to improve it ' s management level, and to share or remote - transmit the running information of the machine sets, the necessity and feasibility to develop an advanced machine condition online monitoring network system based on can bus has been discussed, on the basis of analyzing and comparing the specialities of various field bus
為了保障關鍵設備的安全可靠運行,提高企業的管理水平,實現機組運行信息企業內部共享和遠程傳輸,在分析比較了多種現場總線的技術特性的基礎上,論證了一種先進的基於can總線的設備狀態在線監測網路系統研究的必要性和可行性。Although adsl comes with new digital processing, coding, modulation and error correction technologies, it is also faced with various challenges out of subscriber lines, such as background noise, impulse noise, insertion loss, cross talk, wire size variations, bridge tap, line joints and line insulation, etc. all those factors tend to produce adverse impacts on the performance of high - speed transmission services. firstly, the insertion loss of copper lines increases in proportion to the length of lines
雖然adsl採用先進的數字信號處理技術、編碼調制技術和糾錯技術,但是在推廣adsl業務時,用戶線路的許多特性,包括線路上的背景噪聲、脈沖噪聲、線路的插入損耗、線路間的串擾、線徑的變化、線路的橋接抽頭、線路接頭和線路絕緣等因素將影響高速率傳輸業務的性能。The ncs is modelled as models of linear switched control systems under certain switching sequences
把多包傳輸網路控制系統建模為具有一定切換規則的線性切換系統模型。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
下一代移動通信系統為了滿足移動用戶對高速、寬帶數據傳輸業務不斷增長和更高服務質量的要求,採用了許多新的無線鏈路傳輸技術,包括多天線發射和接收技術、正交頻分復用技術、通道糾錯編碼技術和自適應編碼調制技術等。上世紀60年代提出的低密度校驗碼,是一種校驗矩陣為稀疏矩陣的線性分組碼。分享友人