比性能 的英文怎麼說

中文拼音 [bǐxìngnéng]
比性能 英文
specific performance
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 能 : 能名詞（姓氏） a surname
  1. The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions

    （ 2 ）根據不同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。
  2. In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements

    本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象，選擇對斷開點和節臂球銷的位置進行優化設計，在此基礎上建立了基於多體系統動力學的導向機構和轉向傳動機構的數學模型，運用該學科的運動學分析方法研究機構的運動規律，編制了通用優化設計軟體。由於考慮了更多的空間因素，取消許多影響準確性的假設，因此建立的數學模型與傳統的方法相比更能反映實際運動規律，得到的優化結果也更加精確實用。此外，本文還針對導向機構進行受力分析，在建立該機構的空間動力學模型后，運用多體動力學中的動力學分析方法研究各個桿件的受力，計算出上下球鉸的約束反力，並開發出了相應的通用計算程序。
  3. The realization of quick acquest under very low snr and big frequency shift is one of the key problems of lpi radar. we designed a new receiver which needs less computation spend without any decline of the performance of the radar

    如何在較低輸入信噪比和較大頻偏的條件下實現擴頻碼快速捕獲是碼同步的難點，本文在不損失系統性能的基礎上，設計了一種結構簡單的接收機實現方案。
  4. The method is given to solve the problem in adaptive demodulation that adjudgement will worsen when the snr is low. by using the error signals to reduce the demodulated signals, the bit error rate will be improved

    模擬中，針對dpsk信號的自適應解調中小信噪比下門限失效的問題，提出了利用誤差改進門限判決的方法，將誤碼性能提高了1 2db 。
  5. ( 2 ) in ( no3 ) 3 was dissolved in acetylacetone in the mol ratio of l : 3. they were mixed for about 3 hours to obtain acetylacetone salts. then glycol methyl aether was added in the ratio of 1 : 40 to obtain indium oxide sol. sncl4 was dissolved in glycol methyl aether and then added into the indium oxide sol to prepare transparent and stable ito sol

    （ 2 ）通過將銦的無機鹽硝酸銦與乙酰丙酮按摩爾比1 ： 3 ，混合攪拌3h左右得到銦的乙酰丙酮鹽，然後按一定摩爾比加入乙二醇獨甲醚溶液，混合攪拌制得氧化銦溶膠，再將一定量的sncl _ 4溶入乙二醇獨甲醚，摻入氧化銦溶膠制得透明穩定的摻錫氧化銦溶膠（ ito溶膠） ，該溶膠性能穩定，易於成膜。
  6. Because of its steady performance, much more sources of raw material and low cost, the study and development of zinc - air battery are always paid more attention

    鋅空氣電池因其具有性能穩定、比能量高、放電電流大、原材料來源廣泛、成本低廉等優點一直受到廣泛重視。
  7. Cracks control measures for masonry structure

    改善高層建築下部柱軸壓比性能的措施
  8. Because of their fine extinction ratio and high anti - light - damage threshold value, laser - polarizing prisms are popular among workers in science and technology field

    激光偏光棱鏡，以其優良的消光比性能和高抗光損傷閾值性能，倍受科技工作者歡迎。
  9. The low stream gas ratio characteristic and industrial application of fbd carbon monoxide hts catalyst

    高變催化劑低汽氣比性能及其工業應用
  10. The modern of ri is better than such methods that are to analyze different risks existing in the operation of bank separately or to require being support by amount of data. it is useful for banks to judge they degree of risk. the fourth part is advising part in which i give some proper suggestions on how to better the financial quality, to improve the capability of management, and to promote the competitive ability of our internal commercial banks in the international market

    由於該模型僅需要諸如資產收益率、權益乘數等一些銀行會計部自身便可獲取的財務指標，且該風險指數數據具有同業可比性，能夠反映出銀行財務風險狀況，因此，運用該模型進行風險程度的判定在銀行中運用具有優勢，對于銀行的經營管理有一定的實踐意義。
  11. Reference performance characteristice

    參比性能特性
  12. A major element of getting started on working with xml in python is sorting out the comparative capabilities of all the available modules

    開始在python中使用xml的一個主要要素是排列出所有可用模塊的可比性能力。
  13. But when clarity is more important than performance when, for example you want to be sure that your data is being crunched properly, cwmtx is a great option

    但是如果清晰比性能更重要（例如當您要確信您的數據被正確地處理） ，那麼cwmtx是很好的選擇。
  14. Secondly, comparing with the algorithm that was given by english scholars a. k. nandi and e. e. azzouz in 1995, this dissertation presents a modified automatic recognition algorithm of six kind of digital modulation types such as 2ask, 4ask, 2psk, 4psk, 2fsk and 4fsk, which only uses four key features, and has a very great exaltation in the rate of correct recognition and the performance of signal to noise, we puts forward the constitution of the best threshold which is applicable to the signal that changes within the scope of the signal to noise rate ( snr ) from 5db to 30db, and the overall success rate is not lower than 92 % when snr is over 7db

    其次，針對1995年英國學者a . k . nandi和e . e . azzouz提出的針對2ask 、 4ask 、 2psk 、 4psk 、 2fsk和4fsk這六種常用的數字調制信號識別的演算法，提出了一種數字信號調制方式識別演算法（ dmra ）的改進演算法。該演算法僅利用四個特徵參數，就可以識別這六種調制方式，而且在調制識別率和信噪比性能上都有了很大的提高，能夠在信噪比不低於7db時，對實際信號的識別正確率高於92 % 。並且提出了最佳門限的設置方法，設置的門限適用於信噪比在5db ~ 30db范圍內變化的信號。
  15. In this dissertation, ofdm which has been the hottest spot in communication field recently will be considered as my direction. the dissertation will study some key techniques in mc - cdma system, such as modulation technique, peak - average power ratio, detection technique and synchronization problem of the whole system. what ' s more, the results of calculation and simulation will be given

    本文以目前通信領域的熱點： ofdm （正交頻分復用）為研究方向，對于多載波cdma系統中的若干關鍵技術，即多載波cdma系統中的調制技術、峰平比性能、接收端檢測技術以及整個系統同步問題進行了研究，並給出相應的計算機模擬結果。
  16. The engineering sample of the on - board embedded computer was designed, which was made up of p1750a cpu made in china. and it is better than that on fy - 1 ( 02 ) meteorological satellite in the performance and reliability. the paper will provide useful suggestions to the reliability designs in other rigorous circumstances

    設計出以國產p1750acpu組成的星載嵌入式計算機系統工程樣機，與fy - 1 （ 02 ）號星載計算機相比，性能和可靠性都得到大幅度提高，可為空間惡劣環境下的星載計算機可靠性技術提供思路。
  17. The product is also listed on the energy star web site, which lets consumers compare products with otherwise roughly equivalent performance characteristics for energy efficiency

    該產品還可以列名在能源之星網站上，便於消費者對比性能大致相同的產品，進而選擇能效較高的產品。
  18. Improving traditional cross - subband method of morphology compression algorithm. implement an embedded image coder which is mcgsd having the functions of progressive transmission, arbitrary truncation etc

    其psnr值與流行的小波編碼器相比，性能相當，某些比特率時甚至超過許多流行的小波編碼器。
  19. One of the common characters between traditional algorithms based on dct image coding is that regardless of the content of the image, they use a fixed size block to process, for example, jpeg, mpeg - 1 / 2, h. 263 use constant 8 * 8 block mode. the main work of this article is to propose a sequence images compression algorithm that is based on adaptive block dividing and object to the disadvantages of the one based on fixed - size block dividing. the proposed algorithm is an image compression method, which can auto - adjust dct block size ( 8 * 8 or 4 * 4 ) according to the difference of corresponding blocks between two frames of the sequential image and doesn ’ t process any unnecessary data blocks in order to enhance coding efficiency

    傳統的基於dct的圖像編碼演算法的一個共同特點就是:不管圖像的具體內容，採用固定的塊尺寸進行統一的處理，例如jpeg ， mpeg - 1 / 2 ， h . 263均採用固定的8 8分塊方式，本文的重點工作是針對這些採用固定的塊尺寸進行統一處理的演算法的一些缺點，提出了一種基於自適應分塊的序列圖像壓縮演算法，該演算法是一種根據序列圖像兩幀間對應塊的差別自動調整dct變換尺寸（ 8 8或4 4 ） ，對不必要的數據塊不進行處理，以提高編碼效率的序列圖像壓縮編碼方法，具有較高的編碼效率和較好的壓縮效果，與傳統的採用8 8固定分塊方式的壓縮編碼演算法相比，性能有較大幅度的提高，在文中，作者對兩者的壓縮編碼性能進行了分析比較。
  20. Simulation shows that the implementation complexity is reduced significantly at negligible performance loss compared to the soft - in - soft - out decoding turbo equalization

    通過模擬表明，這三種演算法與使用軟入軟出譯碼的turbo均衡相比，性能相近，但是計算復雜度小了許多。
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