estimation sampling 中文意思是什麼

estimation sampling 解釋
推算抽樣法
  • estimation : n. 1. 估計，評價。2. 預算，預算額；概算。3. 尊重，尊敬。4. 意見，判斷。5. 【化學】估定；測定。
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  1. Third, this dissertation analyzes the complicacy of result size estimation problem for xml structure based query optimization compared to its counterpart in traditionally relational database, and proposes a full - featured result size estimation algorithm for xml query, sxm. for simple path expression query, this dissertation proposes a dynamic synopsis model for xml data based on the concept of f - stable and b - stable, xmap. for complicated path expression query, this dissertation adopts an improved bifocal sampling method for result size estimation

    第三，分析了xml結構化查詢優化中的查詢代價估計問題與傳統關系型數據庫中的查詢代價估計問題的區別，提出了一套完整的xml結構化查詢代價估計體系sxm ，包括對簡單路徑表達進行查詢代價估計的動態xml數據統計模型xmap ，對復雜路徑表達進行查詢代價估計的雙焦點例舉法，以及對值匹配條件進行查詢代價估計的基於小波的多維直方圖方法，並能將多種查詢表達的查詢代價估計結果結合在一起，以給出一個完整的xpath查詢的代價估計。
  2. The model - based parameter estimation ( mbpe ) is firstly applied to the near - field measurement in this thesis to deal with the near - field sampling data in space and spectrum domains respectively

    本文首次在天線近場測量中採用了基於模型的參數估計技術，在空域和頻域內分別對近場采樣的數據進行處理。
  3. Because hrv signal is unevenly sampled, direct spectrum estimation will cause wrong result. resample on hrv signal is necessary. in this chapter after comparing different evenly sampling methods, the best way - cubic spline interpolation is adopted in spectrum estimation

    由於心率變異信號是一種不等間隔采樣信號，不能直接採用傅立葉變換的方法進行頻譜分析，因此將心率變異信號等間隔化是必要的。
  4. Estimation on bers of digital fiber - optic communication links using importance sampling

    用重要性抽樣方法估計數字光纖通信鏈路的誤碼率
  5. The sampling period of the fusion center is defined as the lease common multiple of multi - sensors measurement period, so the same number of the local state estimation is transmitted to the fusion center every sampling period and the computation burden of the tracking filter is alleviated

    該演算法將融合中心的采樣周期設定為感測器測量周期的最小公倍數，使得傳輸到融合中心的局部狀態估計在每個周期內具有相同的數目，減少了跟蹤濾波的計算量。
  6. This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system

    本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。
  7. Therefore, the paper mainly discusses the pluses and minuses of the multifarious frequency estimation algorithms, and develops an adaptive method of evaluation on dft for power system frequency, which is based on the equal - angle sampling principle

    因此，本文著重論述了歷史上各種頻率測量演算法的優缺點，並在自適應調整采樣率的等角度采樣原則的基礎上，提出了一種基於dft的電網頻率測量的自適應估計演算法。
  8. Based on the analysis of solving ambiguity, the thesis presents several algorithms for estimating doa and an algorithm for estimating frequency by using methods of subspace parameter estimation under sub - nyquist spatio - temporal sampling condition

    論文在分析解模糊思想的基礎上，給出空時欠采樣下運用子空間類參數估計方法估計波達方向的幾種演算法和一種頻率估計演算法，並從性能上進行了比較和分析。
  9. This paper presented a ml estimator for the estimation of high - frequency sampling noise model to solve the problem that high - frequency sampling suffer from both additive noise and time jitter error estimation

    摘要針對高頻數字采樣中的附加噪聲和時間抖動誤差估計問題，給出了高頻數字采樣測量噪聲誤差的最大似然估計方法。
  10. Concentration of k and mg2 in vitreous humor taken by alternative micro - sampling method from both eyes of rabbits for the estimation of postmortem interval

    雙眼交替微量取樣檢測兔玻璃體液鉀鎂離子濃度推測死亡時間
  11. Standard guide for ranked set sampling : efficient estimation of a mean concentration in environmental sampling

    分等級抽樣的標準指南:環境抽樣中平均濃度的有效評估
  12. Based on the coherent reception theory of radio signals and the theory of digital signal processing, the effects of carrier frequency offset, sampling clock offset, and symbol timing offset on ofdm signals are exploited. a series of amendments and new algorithms is derived from the in being algorithms of guard interval based symbol timing and frequency offset estimation, frequency - domain frequency offset, sampling offset, and symbol timing offset estimation

    以無線信號的相干接收和數字信號處理理論為基礎，就載波頻偏、采樣鐘偏差和符號定時偏差對ofdm信號的影響進行了分析，對基於保護間隔的符號定時與載波頻偏估計演算法和多種現有頻偏、采樣鐘與符號定時偏差的頻域估計演算法進行了研究，提出了一系列改進措施與新演算法。
  13. Chapter three provides synchronization algorithms in dvb - t cofdm receiver, including symbol timing recovery, carrier frequency error estimation and sampling timing recovery. chapter four introduces some channel estimation algorithms based on interpolation in dvb - t receiver. five estimators are compared, in terms of mean - squared error both in rayleigh channel and ricean channel

    第三章首先討論了由於載波頻率偏差、符號定時偏差和采樣定時偏差對ofdm系統所造成的影響和干擾，然後針對dvb - t系統的cofdm接收機方案，分別給出了符號定時同步、頻率同步以及采樣鐘同步的實現演算法，並對它們的性能進行了分析模擬。
  14. This article summarizes the accuracy and coverage evaluation survey ( a. c. e. survey ) of the american census 2000. it includes sampling design, post - stratification, dual - system estimation and so on

    摘要本文概要地敘述了美國2000年人口普查后所進行的準確性和數字評估調查（ a . c . e .調查） 。它包括：抽樣設計、事後分層、雙系統估計等等。
  15. Digital down converting is one of the key technologies of software radio. it can improve the efficiency and reliability of communications. lt is also important to realize software radio receivers. the paper focuses on the technologies involved in digital down converting, such as integer sampling - rate conversion, non - integer sampling - rate conversion and carrier frequency offset estimation algorithm. on the base of these, the paper analyzes applications of digital down converting in the hsp50214b programmable downconverter. the hardware and sofeware of the application of digital down converting are also introduced

    數字下變頻技術是軟體無線電中的關鍵技術之一。該技術不僅有助於提高通信的有效性和可靠性，還對實現真正的軟體無線電臺有著重要的意義。本文對數字下變頻所涉及整數倍采樣率轉換、非整數倍采樣率轉換和載波初始頻差估計校正作了較深入的研究，並提出了一些實用高效的實現結構和演算法。
  16. The computational results indicate that parameters estimation by bayesian method and mcmc sampling has a high precision

    計算結果表明採用貝葉斯推理獲得的模型參數估計具有很高的精度。
  17. Quantitative model and fast estimation algorithm of sampling error for association rule mining

    關聯規則挖掘的取樣誤差量化模型和快速估計演算法
  18. According the above objectives, the topics of the course include the introduction of statistics, the data collection, sampling and distribution, estimation, and correlation & regression

    為達上述目標，本課程之主要上課單元有：統計學的定義與重要性、統計資料的?集與整理、機率與抽樣分配、估計、相關與?歸分析等。
  19. Estimation of process capability index and sampling design with non - normal distributions

    非正態過程能力指數估計及抽樣方案設計
  20. Based on the port and waterway superintendence units, we study and screen the detailed method for the sample survey of whole industry waterway transportation volume, including selecting detailed sampling method, determining the appropriate sampling size, designing the calculation formula of all target estimators and their variance estimation

    包括選定具體的抽樣方法，確定合適的樣本量，給出需估計目標量的估計公式及估計量的精度公式，制定詳細的樣本調查規定和編制科學合理的樣本調查表等。
分享友人
分享到 Line

分享到臉書