diversity combining 中文意思是什麼
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Last, combining the three diversity indexes and the five chemical indexes, the major constitution component analysis and the clustering analysis were applied to make the evaluation of the water quality. at the same time, the nutrition type and the black and foetid rate were evaluated
最後，結合三項多樣性指數和五項化學指標，運用主成分分析和聚類分析評價內河的水質，並對內河進行營養型和黑臭率評價。 -
Combining with fragstats software, landscape diversity index ( h ), landscape dominance index ( d ), landscape evenness index ( e ), fractal dimension, landscape contagion index and landscape fragmentation index are calculated. they show : ? grassplot landscape is a primary landscape type in gansu. the numbers of big patch is much more
以甘肅省為例，基於景觀生態學基礎上，利用arcview和arc / info地理信息系統軟體對甘肅省景觀系統進行分類，結合景觀指標計算軟體fragstats計算出了甘肅省景觀多樣性指數（ h ） 、優勢度指數（ d ） 、均勻度指數（ e ） 、斑塊分維數、聚集度指數以及斑塊的破碎度指數。 -
Combining methods and diversity measures in multiple classifier systems for thematic classification of landsat tm images
影像分類領域多分類器線性組合方法及差異性度量研究 -
It has its own basic features in its approach, that is, giving full consideration to the diversity of its members and acknowledging their divergence at the level and stage of development as well as the consequent differing interests and needs ; laying emphasis on flexibility, step - by - step progress and openness ; adhering to such principles as equality and mutual benefit, consensus, seeking common ground while putting aside differences as well as voluntarism ; and combining individual with collective actions
它的運行方式具有自己的基本觀點，這就是：充分尊重各成員的多樣性；承認成員之間發展水平和發展階段上的差異及其帶來的不同利益與需求；強調靈活性、漸進性和開放性；遵循平等互利、協商一致、求同存異、自主自願的原則；實行單邊行動與集體行動相結合。 -
On " apec approach ", president jiang pointed out that apec has its own basic features in its approach, that is giving full consideration to the diversity of its members and acknowledging their divergence in the level and stage of development as well as the consequent differing interests and needs ; laying emphasis on flexibility, step - by - step progress and openness ; adhering to such principles as equality and mutual benefit, consensus, seeking common ground while putting aside differences as well as voluntarism ; and combining individual with collective actions
關于" apec方式" ，江主席指出， apec的運行方式具有自己的基本特點，這就是：充分尊重各成員的多樣性，承認成員之間的發展水平和發展階段上的差異及其帶來的不同利益與需求強調靈活性漸進性和開放性遵循平等互利協商一致求同存異自主自願的原則實行單邊行動與集體行動相結合。 -
The performance of a planar polarization diversity antenna on the handset with optimum combining and equal ratio combining is then studied
用montecarlo模擬研究了採用最優合併和等比合併的手機上平面雙埠極化天線系統的分集性能。 -
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。 -
Polarization diversity and maximum ratio combining ( mrc ) is used to restrain the sharp signal fading in the telemetry systems, in which the object is in flight at a high speed and rotating and in low elevation
在信號極化衰弱現象嚴重的環境中對快速飛行目標、低仰角運動目標以及旋轉運動目標等進行遙測接收時，極化分集最大比合成技術可以有效的改善接收性能。 -
Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
In this paper, we propose an improved evolutionary algorithm combining diversity maintaining mechanism and accelerating operators, which focuses on the contradiction between the maintenance of population diversity and search efficiency in solving multimodal function global optimization problem on a bounded area
摘要針對演化演算法求解有界區域上的多峰函數全局優化問題中，保持種群多樣性和搜索效率的矛盾，提出了一種結合了多樣性維持機制和加速運算元的改進演化演算法並對演算法作了收斂性分析。 -
In the traditional polarization diversity and combining scheme, differential mode loop and common mode loop is combined to lock in the phase and frequency of the diversity signals and remove the carrier frequency bias and doppler shift
傳統的極化分集接收方案是將差模環和共模環相結合完成兩路信號的同頻同相鎖定以及多普勒頻率偏移的去除。 -
The simulation in quartusii for the blocks with fpga is proposed at last. compare with the traditional polarization diversity and combining receiver, the stability of the scheme proposed in this paper is better, the parameter of it is reprogrammable, and upgrading of the system is also easily. then the diversity
與傳統的極化分集接收機相比，利用本文提出的系統設計方案設計的數字極化分集接收機具有工作更穩定，參數可編程以及便於系統升級等優點，這樣就使得在一個硬體平臺上實現不同參數分集接收成為可能。 -
Space time coding was proposed by combining transmit diversity and coding technology to improve the system performance, such as error bit rate, data rate, and system capacity. in particular, space - time block coding ( stbc ) schemes, proposed originally by alamouti were adopted by the 3g standardization committees as one key technique in 3g wireless systems
將發送分集與編碼調制技術相結合，進一步產生了空時編碼技術，由於空時編碼技術具有優異的抗衰落性能，並且能通過發送分集和接收分集提供高速率、高質量的數據傳輸，因此它已經成為第三代移動通信技術的重要組成部分，並將繼續在下一代移動通信技術的發展中發揮重要作用。 -
Because of the structure of the traditional polarization diversity and combining scheme is too complex, after researching the polarization diversity and diversity combining technology, a new structure of receiver is proposed. in this structure the uniform sampling second - order dpll is used to remove the frequency bias after frequency discrimination
該結構控制較為復雜，為此結合實際項目要求，在研究了極化分集接收關鍵技術的基礎上，提出了一種改進的極化分集接收機結構，即在鑒頻之後利用均勻采樣二階數字鎖相環誤差傳遞函數的高通特性去除各種頻偏分量。 -
This novel transmit diversity technique, which combines channel coding, modulation and signal processing at receive terminal, can make full use of the fading multi - path in the wireless communication systems so as to mitigate the signal attenuation. this technique is mainly designed to combat channel fading in downlink transmission by combining the technique of channel coding and that of array diversity, hence increasing the capacity of wireless communications systems and giving diversity gain and coding gain to them
基於多輸入輸出（ mimo ）的空時編碼技術是實現未來帶寬資源日益緊張的高速無線數據通信系統的重要技術，它結合了通道編碼、調制和接收端的信號處理，能夠充分利用無線通信通道中多散射體環境所造成的多徑，從而提供信號的抗衰落性能。 -
The hardware design based on fpga is proposed, including the designs of a / d block, d / a block and the polarization diversity and combining block based on fpga
最後給出了基於fpga的系統硬體設計，硬體系統設計包括a / d模塊設計， d / a模塊設計，以及基於fpga的分集合併模塊設計。 -
Among the non - coherent transmit diversity technologies, differential transmit diversity is a remarkable technique. in this thesis we consider the combining diversity of the differential transmit diversity and receive diversity. the potential of space diversity was discussed and the error performance of combining diversity system was investigated
本論文採用聯合分集的方式將差分發送分集技術與接收分集技術相結合，進一步探討了空間分集在抗衰落方面的潛力，並對基於聯合分集技術的多天線通信系統進行了研究。
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