衰落分佈 的英文怎麼說

中文拼音 [shuāilàfēnbù]
衰落分佈 英文
fading distribution
  • 衰 : 衰動詞（衰弱） decline; wane
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 衰落 : decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode
  1. The researches start from the theory of radio scatter, highly generalized the communication terrain and other conditions in some parameters. the digital simulator frame has many distinct advantages such as programmable, various fading model and channel type that can be design freely by user

    模擬器方案具有通道可編程、衰落模型可變、通道類型可變以及可設計出用戶自定義的通道類型和衰落模型等優點，擺脫了以往模擬器設計中使用經驗分佈和經驗公式的作法。
  2. Mimo ; order statistics ; flat fading ; gamma distribution

    Mimo順序統計量平坦衰落gamma分佈
  3. 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。
  4. Based on the obtained lower bounds on mean squared channel estimation errors, the limits on bit error rate ( ber ) for maximal ratio combining ( mrc ) with gaussian distributed weighting errors on independent and identically distributed ( i. i. d ) fading channels are presented

    通過對不同衰落通道多普勒譜的積分，求出了相應的通道估計均方誤差下界的閉合表達式，並在此基礎上得到了分集系統在獨立同分佈的衰落通道中採用最大比合併時的誤碼率下界。
  5. Much reference of the algorithms and models can be got from the performance results for the practical design and layout. system - level simulation of hsupa builds the integrated platform and key models to describe and simulate the common structure and features of the radio network, including cell layout, path gain, traffic model, power control, handover, etc., also the special ones of hsupa, including mac - es / e, node b controlled scheduling, harq, shorter tti, etc.

    所謂hsupa系統級模擬就是要搭建系統級的模擬平臺，對無線網路的公共結構和特性（例如小區布局，傳播模型，衰落通道，天線模型，功率控制，切換， ue的分佈和移動，業務的建立終止和中斷等）和hsupa的專有結構和特性（ mac - es / e ， nodeb控制的調度， harq ，更短的tti ）進行描述和建模。
  6. The authors discuss the statistical distributions of multiple - input multiple - output mimo channels over flat rayleigh fading via the order statistics analysis. simplified expressions are derived for expectations of the vector energies when the column or row number is equal to 1 and 2, which is followed by the upper and lower bounds when the antenna number at one side approaches infinite

    以順序統計量分析rayleigh平坦衰落mimo通道矩陣各向量能量的分佈特徵，給出其各階矩公式以及列行數為1和2時行列向量的能量期望值的簡潔表達式，並由此推導出通道矩陣的單邊維數趨于無窮時行和列向量能量期望值的上下界。
  7. For power control of listening users, forward power control method are introduced based on full, multichannel, filtered report, and collision method etc. the full report method has redundancy report information, and its real - time performance is bad, multichannel report is introduced to improve the real - time performance, and filtered report is introduced to eliminate the redundancy information, finally the collision method introduced can not only get higher real - time performance but also diminish the redundancy information ; 2. in order to meet the requirements of making the dynamic simulation of trunking group system, the ms ’ s random move equation is brought forward, the simulation of ms ’ s distribution is done and the integrated channel model are presented ; 3. the smart predicative model of power control is introduced to overcome the delay and track the change of the complicated network, with this model, the power control ‘ s performance is greatly improved

    全匯報方法存在冗餘的匯報信息，而且實時性較差，為了改善實時性提出了多通道的匯報方式，為了改善冗餘匯報而提出了篩選法，最後介紹的碰撞法在減少冗餘信息的同時又提高了實時性;二、為了集群功率控制動態模擬的需要，提出了移動臺的隨機運動方程，進行了有關移動臺的分佈模擬，建立了綜合的通道模型;三、希望克服延時和跟蹤復雜網路環境變化，提出了功率控制的智能預測模型，通過智能預測模型可以改善功率控制的性能，著重介紹了採用神經網路的方法實現智能預測的通用模型，從而跟蹤復雜多變的無線環境，諸如慢衰落及快衰落（包括多徑衰落、多普勒效應所引起的衰落）等網路特徵，達到預測功率需求;四、採用二級正交碼和智能天線（空分多址）的方法進行組內用戶的識別，改進功率控制效果;五、話權用戶的前向和反向功率控制方法;六、對引入gota的cdma系統提出了復合容量表示方法，並作容量分析，探討有關gota系統的qos問題。
  8. So far, there is not much research on the signal detection of da - mimo system, and the general frequency selective channel is not taken into consideration. in chapter 3 of this dissertation, the coherent signal detection algorithms for da - mimo system under both flat fading and frequency selective fading channels are derived. and the analysis of the factors which affect the performance of the detection algorithms is also illustrated through computer simulations

    針對分佈mimo信號檢測目前研究較少，並且沒有考慮一般意義下的頻率選擇性通道的情況，本文在第三章分別推導了基於平坦衰落和頻率選擇性衰落通道環境的分佈mimo信號相干檢測演算法，並通過計算機模擬，對影響演算法檢測性能的因素進行了分析討論。
  9. In the final stage of the liangzhu culture, warm - humid climate, heavy precipitation and rising temperature led to sea - level rising, rivers running impeded, water areas large, in addition that the sites in the last stage of the liangzhu culture were mostly located in low - lying areas, which had liangzhu ancients suffered a unparalleledbig flood disaster resulting in the cultural decline

    良渚文化末期，氣候暖濕，溫度增加，導致海平面上升，入海河流宣洩不暢，水域面積擴大，加之良渚文化晚期遺址多分佈在地勢低洼地區，因此良渚先民遭受了一場大洪水災難，遂使良渚文化迅速衰落。
  10. Then, base on the determine channel modeling methods, we present a frequency - selective mimo fading channel with von mises probability density function, which is used to characterize non - uniform angle - of - arrival caused by non - isotropic scattering. then we analyze partial cross correlation function of proposed model and proved the model theoretically

    然後，通過對其它多入多出通道模型的分析和對比，並基於確定性通道建模方法，建立了一種通用的頻率選擇性多入多出衰落通道模型，藉助「 vonmises 」概率密度函數，以描述非均勻散射體導致的非均勻本地來波方向分佈。
  11. At the same time, analysis of effects of gaussian distributed and uniform distributed feedback error of the channel fading behavior on throughput performance of adaptive mqam reveals that the obvious throughput loss shall be observed as far as the error exceeds certain limit

    同時，高斯分佈和均勻分佈的通道衰落信息反饋誤差對自適應mqam吞吐量性能影響的研究表明，當誤差超過一定程度時，自適應系統吞吐量性能明顯下降。
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