propagation model 中文意思是什麼
propagation model
解釋
傳播模型- propagation : 持續培養
- model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
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In this paper, a multi - area diagnostic & predictive model are proposed for combustion process in gasoline engines. models are composed of thermodynamic model, turbulence flams propagation model & nitrogen oxides ( nox ) formation model
本文建立了汽油機燃燒過程的多區診斷及預測模型，其中包括氮氧化物生成模型和廢氣再循環降低氮氧化物生成的優化模型。 -
The text uses the method of ray tracing that is based on improved traditional mirror image principle of the radio wave forecast and two ray propagation model, which can be used in any complex propagation environment and found any propagation path from the sending set to receiving machine without redundancy computer
本文是基於無線電波預測中傳統的鏡像原理與雙射線傳播模型的結合而提出的改進了的射線跟蹤演算法，它能用於任何復雜的傳播環境中，能找到從發射機到接收機之間的所有傳播路徑而無須冗餘的計算。 -
In chapter 4, a simulation approach is presented, which combines the outdoor radio propagation model, the eigen - driven patterns of handset diversity antenna with two feed ports and combining schemes of receiving signals, to investigate the performance of a dual antenna handset under co - channel interference ( cci ) and multi - path fading environment
第四章首先用本徵激勵方向圖的概念來產生手機雙埠分集天線的接收信號矢量，然後將其與城市室外電波傳播模型、分集合併方式相結合，建立了分析在具有共道干擾和多徑衰落環境中手機雙天線系統的性能模型。 -
Analysis of signal energy transmission in blue - green laser uplink propagation model
藍綠激光上行傳輸通道的信號能量傳遞分析 -
Accordingly ray tracing model for microcells propagation prediction has become an important subject. this paper discussed the characteristic of propagation in symmetrical atmosphere on the earth, and introduced several kinds of traditional path loss propagation model in land mobile communication system, also pointed out the localization of these models based on experiential methods
本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。 -
The paper demonstrates the whole plan of the propagation model application software. with the delphi software, an application software including the function of the realtime calculating path loss value is compiled completely. the paper analyses the planning theory of the td - scdma network. its main aspects include the backbone of the network, the link budget report, the budget of the effective distance, the analyse of the link interference and the analyse of the system capacity
論證了td - scdma傳播模型應用軟體整體方案，利用delphi軟體編寫了具有校正功能和實時計算傳播衰耗值功能（與gps系統配合）的應用軟體。論文從理論的角度分析了td - scdma網路的規劃理論，主要從網路拓撲結構、上下行鏈路功率平衡預算報告、有效通信距離的估算、上下形鏈路干擾的分析和系統最大容量分析五個方面進行了論述。 -
Failure propagation model of complex system based on small world net
基於小世界網路的復雜系統故障傳播模型 -
To find the failure propagation mechanism from the inherent topological structure of the complex electromechanical system, the topological structure statistical properties of the system were analyzed with small world net theory, and a failure propagation model based on the small world clustering was proposed
摘要為了從復雜機電系統自身固有的網路拓撲結構出發來研究故障的傳播機制，採用小世界網路理論分析方法，對系統網路拓撲結構統計特性進行分析，建立了基於小世界聚類特性的故障傳播模型。 -
A mathematic model of basic ignition advance angel is built according to double - district burn model and the turbulent flame behavior propagation model. through the emulational calculation, we can get the initial ignition advance angel map graph of the motorcycle ’ s efi system, and the results also showed well consistent with the stand experimental results which adopted the domestic 125ml motorcycle gasoline engine
在結合汽油機雙區燃燒模型和湍流火焰傳播模型的基礎上，建立了基本點火提前角數學模型，運用在國產125ml摩托車發動機上，模擬得出此發動機電控噴射系統的初始點火map圖。 -
By making use of two - dimensional ( 2d ) ray tracing model results, a new propagation model was presented
摘要射線跟蹤是一種有效的無線通信電波傳播預測方法。 -
The analyzing result indicated that reflective crack ' s propagation model is decided by the stress at top of the crack, which often is a compound propagation model
分析計算結果表明，反射裂縫的擴展方式取決于裂縫尖端的受力情況，一般為復合型裂紋擴展。 -
Then, reflective crack ' s propagation model under traffic load coupled with temperature load was analyzed
而後對反射裂縫在行車荷載與溫度荷載耦合作用下的裂縫擴展模式進行了研究。 -
Modeling the acoustic field with proper sound propagation model is necessary for the research on sound propagation in the sea and is the basis of ocean acoustic tomography
研究海洋中的聲傳播需要選擇適當的傳播模型對海洋環境進行建模，精確的傳播模型也是海洋聲層析研究的基礎。 -
Ray model is one of the conventional sound propagation models, which is simple, intuitionistic and suitable for all kinds of signals and can work in range - dependent environments. so ray model which is used in modeling the acoustic field is an important sound propagation model of ocean acoustic tomography
射線聲學簡單、直觀，適用於各種信號，並且可以計算介質參數隨距離變化情況下的聲場，因此，射線聲學模型也是海洋聲層析研究中重要的聲場建模方法。 -
An acoustic wave propagation model in low frequency multi - layered media of shallow sea
淺海低頻多層介質中聲傳播損失的數學模型 -
Studies and empirical evidence of sars propagation model
傳染模型的研究及實證分析 -
Multibeam base - station smart antennas are discussed in this paper. we analyze the outage probability of mobile communication system suffering both fast fading and shadowing by means of statistical propagation model, and contrast the case that adopt multibeam smart antennas to the case that adopt omnicase. the results emulated by computer show that the outage probability of mobile communication system will diminish as the increasing of the number of beams using smart antennas no matter when suffering a single co - channel interfence or six ones
研究了移動通信環境下的多波束智能天線，並基於統計傳播的同通道干擾模型，分析了快衰落及慢衰落情況下未採用多波束智能天線與採用多波束智能天線時的中斷率，並進行了比較.計算機模擬結果表明：採用多波束智能天線，不論在單個同通道小區還是多個同通道小區情況下，系統的中斷率將隨著波束數的增大而降低 -
A quasi - three - dimensional propagation model has been presented for path - loss prediction in a typical urban site, based on ray tracing with quad - tree method of subarea. the model takes into account numerous rays that undergo reflections from ground and wall surfaces and diffraction from corners or rooftops of buildings
在總結前人工作的基礎上，本文採用四叉樹分區法建立了一種準三維電波傳播模型，並以vc + + 6 . 0作為編程平臺實現模擬。 -
A high - dimensional propagation model for a class of highly infectious latent diseases under safety measures
防護措施下一類高傳染性多潛伏期傳染病的高維動態模型 -
An propagation model of such epidemic disease as sars
為例的傳染病傳播模型
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