相合估計 的英文怎麼說

中文拼音 [xiānggěgūjì]
相合估計 英文
consistent estimate
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 估 : 估構詞成分。
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 相合 : aiau
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  1. Based on field research and the dynamic analysis of remote sensing data of different time ( 1987 tm, 1996 tm and 2000 china - brazil earth resource satellite ccd ), using multi - information of research area ( including data of geology, geography, hydrology, meteorology, economy, human culture and dem ) and existing research results, the dissertation discusses drive factors of desertification and the relationships between drive factors and desertification with the help of gis tool and some mathematical methods such as probability, statistics, curvilinear estimation, logical analysis and analytic hierarchy process

    論文在對研究區土地荒漠化現狀野外調研和不同時相（ 1987tm 、 1996tm和2000ccd ）遙感圖像土地荒漠化信息提取和演變分析的基礎上，結合研究區已有的多元信息基礎資料及研究成果（包括地質、地理、多時期的水文氣象、經濟、人文以及dem數據等） ，運用gis強大的空間分析功能和概率統計、曲線估計、邏輯分析、主成分分析、層次分析等數學方法綜合研究了土地荒漠化與各驅動因子之間的相關關系，揭示了研究區土地荒漠化的主要驅動因素，探討了荒漠化動態演化規律。
  2. It is reasonable to suppose that it contained many of the sources he used in his own writings, and they alone would make up a sizable collection.

    據合理估計，藏書中一定有許多供他本人寫作時用的參考書，而且佔了相當大的比例。
  3. Sequence and large sample quality are posed. in our country or allien there are many experts who discusses some quanlity of na variable in great. for example, in documentation 6, there is a discussion about the consistency of density kernel estimation and many results have been g ained, but the density estimation f ( x ) is limited to the arrange of x [ a, 6 ] which limits the arrange of application. thus in this passage we call off this limitation and further discuss the density kernel estimation under na sample. consequently the counterpart results have been gained and the condition of result has been weaked. in the same time we discuss the density kernel estimation under pa sample and the counterpart result has been gained

    序列密度函數估計及其大樣本性質的研究課題。國內外許多專家對na變量的各種性質進行了大量的討論，其中文獻[ 6 ]曾對na樣本下密度核估計的相合性進行了討論，並取得了一些結果，但該文將密度估計f （ x ）限制在x [ a ， b ]中進行討論，這局限了應用范圍。因此本文在取消這種限制條件下對na樣本的密度核估計進行了進一步的討論，得出了相應的結果，並使結論的條件得到弱化；同時對pa樣本下的密度估計也進行了相應的討論，取得了相應的結果。
  4. Several carrier frequency estimation algorithms including ekf and rls with opened loop are analyzed, which aim to settle the carrier phase estimation problem preferably under high dynamic circumstances. an improved phase and frequency esti - mation algorithm is proposed in the paper. simulation results show that the algorithm is faster and more precision than other algorithms

    為更好地解決高動態環境中的載波同步問題，本文進一步研究了存在動態多普勒頻移情況下的開環相干載波同步問題，包括基於擴展卡爾曼濾波、最小二乘演算法等的頻差、相差聯合估計方法。
  5. Analysis of ambiguity - function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal. 3. this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform

    包括基於多項相位變換的lfmcw雷達速度和加速度估計方法;基於修正多項相位變換的多目標lfmcw雷達速度和加速度估計方法;基於一般高斯噪聲環境下的lfmcw雷達速度和加速度聯合估計方法;另外提出了基於頻域增采樣內插方法以提高lfmcw雷達測距精度。
  6. In this paper, we use fft beam - - form technique to increase the number of beams and bearing deviation indicator ( bdi ) and sp1 it - - aperture corre1ation a1gorithms are used to estimate the time of arrival ( t0a ) and direction of arriva1 ( d0a )

    本文在分析借鑒國外資料的基礎上，研究了利用fft波束形成技術來增加波束形成數目，並應用bdi演算法和分裂孔徑相關法來完成對海底回波信號的時間和方向的聯合估計等相關技術對海試數據進行處理。
  7. The problem of doa ' s estimation of multiple source signals incident on a arbitrary array in the presence of both unknown spatially correlated noise and sensor errors is firstly considered. a modified ml estimation of doa ' s and sensor gain errors is presented. unlike previous work, the proposed method does not impose any structure constraints or parameterization of the signal and noise covariances. the algorithm can be carried out via the alternating projection approach. finally, the performance of the proposed method is shown with computer simulations as well as real array data

    在空間相關色噪聲環境及存在陣列模型誤差情況下，首先給出了基於最大似然的doa及陣列幅相誤差聯合估計演算法，該演算法對信號和噪聲無任何約束，且適用於任意陣列結構。演算法可以利用交替投影迭代搜索實現，計算機模擬實驗和外場實測數據表明，本章演算法能給出比傳統的最大似然方法更高的估計性能。
  8. Consistent kernal estimate of error distribution in linear model under dependent samples

    相依樣本下線性模型誤差分佈的相合估計
  9. Strong consistent estimation in semiparametric regression model for the longitudinal contaminated data

    縱向污染數據半參數回歸模型中的強相合估計
  10. Since there are a lot of periodic non - stationary stochastic processes, i combine the kalman filtering and multiresolution analysis methods, and propose the wavelet - kalman filtering hybrid estimating and forecasting method. this method has the real - time, recursion and multiresolution characteristics. in this paper, using this method, i realize the real - time tracking and dynamic multistep forecasting in one cycle

    針對自然、社會和經濟等環境中存在有大量周期性的非平穩隨機過程，我們將kf方法和多尺度分析方法相結合，提出了既具有實時性和遞歸性又具有多尺度分析能力的小波?卡爾曼濾波混合估計與預報方法，應用此方法可實現周期內對目標狀態的實時跟蹤估計和動態多步預報。
  11. Based on the information fusion estimation theory, various information fusion structures and their algorithms are summarized, including centralized, decentralized, fusion mode and all - information mode. various kalman filters in the case of correlative infonnation arc summarized, including those with the correlation of measuring noise and system noise, those with colored noise and those in the case of one filter stimulating another. mathematical simulation results, as shown in figures 4. 3 through 4. 5, testify the validity of solving the problem of one filter stimulating another by using the method of prolonging fusion period

    基於信息融合估計理論，研究和總結了多傳感器系統中的各種信息融合結構及其演算法，包括集中式、分散式、融合式和全信息融合方式；研究和總結了各種相關信息情況下的kalman濾波，包括量測噪聲與系統噪聲相關時的kalman濾波、有色噪聲條件下的kalman濾波和濾波激勵濾波條件下的kalman濾波。
  12. After analyzing the performance of the coherent tree - structured optimal joint detection ( tsojd ) for qpsk signals and deriving a non - coherent multi - user weight / phase estimator, the dissertation proposes a low complexity non - coherent multi - user weight / phase optimal joint detection algorithm. besides, the dissertation proposes a partial coherent multi - user / iv weight / phase optimal joint detection algorithm and some useful conclusions are obtained in comparison experiments. 4. in the research on the diversity techniques for fast fading multi - path channels, the dissertation proposes a time - scale rake receiver, and analyzes its performance with the conception of auto - wavelet - transform ( awt ) and time - - scale resolution

    提出了過飽和低復雜度qpsk信號的樹型最佳聯合檢測演算法，並分析了相應最佳接收機的性能及相位偏差對性能的影響等問題；考慮了載波相位和多用戶信碼的聯合檢測問題，通過理論推導給出了過飽和多址系統中多用戶信碼/相位聯合估計子，提出了低復雜度非相干多用戶信碼/相位最佳聯合檢測演算法，並分析了此非相干最佳接收機的誤碼性能及相位提取誤差等有關問題；提出了部分相干多用戶信碼/相位最佳聯合檢測演算法，通過計算機模擬分析了該接收機的誤碼性能及相位提取誤差等有關問題，並與相干、非相干解調兩種情況作了比較，得出了一些有益的結論。
  13. Based on robust filtering theory, this paper develops polytopic models of uncertain multisensor system and centralized robust fusion estimation by linear matrix inequality ( lmi ) method, and proves the exact transforming condition, by which robust centralized estimation can be transformed to the distributed fusion method with the same fusion estimation performance

    本文以魯棒濾波理論為基礎，給出了不確定多傳感器系統的多胞型描述模型，並利用lmi方法給出集中式魯棒狀態融合估計問題的解，證明了將集中式魯棒融合估計轉化為相同估計性能的分散式融合估計演算法的條件。
  14. A blind joint angle and delay estimation method based on trilinear alternating least square technique in uniform circular array ( tals - cjade ) is also presented in section 3, and a blind joint angle and delay estimation method based on complex parallel factor in uniform circular array ( comfac - cjade ) is given to improve the tals - cjade convergence performance

    傳統聯合角度和時延估計方法在過載情況下（用戶數大於陣元數）不能正確估計。與傳統聯合角度和時延估計方法相比， tals - ljade和tals - cjade演算法具有較好doa和時延的聯合估計性能，且在過載情況下仍有較好的性能。
  15. After that, based on the above discussion and technology comparison, an improved nda ( non - data - aided ) carrier offset estimation algorithm is proposed which has the advantages of improved carrier offset estimation performance and can be realized by high - speed dsp chips

    本文論述的方法無需以數據為輔助進行頻率和相位估計，特別適合於突發性通信。同時系統性能穩定，其低復雜度的設計易於高速dsp器件實現。
  16. The parallel computing ability of wave number domain algorithm is also being studied basically. the influence of the carrier movement errors on the sas image is analysed in chapter three firstly. based on studying those algorithms which have been successfully applied in sar, the limitations of these auto - focusing algorithms are discussed. hereafter an auto focusing algorithm based on time delay and phase error evaluation is raised, which can compensate big movement error effectively and so can be applied in sas

    第三章首先分析了孔徑上運動誤差對合成孔徑聲吶圖像的影響，在研究在sar領域里成功應用的演算法的基礎上，對其運動補償的局限性做了分析，提出一種基於時延相位估計的自聚焦演算法，它能夠有效地補償運動誤差帶來的影響，並且適用於sas運動誤差較大的情況。
  17. Phase compensation is presented. secondly we apply the rope algorithm to isar phase compensation and illustrate how to use it. finally, by combining with the isar real data, the performance of the rope is compared with the other methods

    第四章在闡述了現有的主要幾種相位補償方法的基礎上，把秩一相位估計（ rope ）演算法應用於isar相位補償，給出了具體的使用方法，並結合實測數據的處理結果，同其它方法的性能作了比較。
  18. Phase gradient auto - focus algorithm ( pga ) and rank one phase estimation auto - focus algorithm ( rope ) satisfying high - resolution air - borne sar image formation needs are analyzed. aimed at disadvantages of pga and rope algorithms, improved rank one phase estimation auto - focus algorithm ( irope ) is introduced. at last, combining fsa and irope algorithms, using air - borne sar actual flight data, the algorithms " feasibility and validity are validated

    第三，針對相位誤差對圖像質量的影響進行了定性分析，同時對多普勒參數估計的必要性及其幾種演算法進行了討論；接著系統研究了適合於高解析度機載sar成像要求的相位梯度自聚焦演算法（ pga ）和秩一相位估計自聚焦演算法（ rope ） ，並針對pga和rope演算法的不足之處，介紹了改進的秩一相位估計自聚焦演算法（ irope ） ；最後，結合fsa成像演算法和irope自聚焦演算法，以機載sar實際飛行數據為基礎，對演算法的可行性和有效性進行驗證。
  19. The details are as followings : the most usual problems related to navigation data fusion are studied ( the local navigation sensors export directly navigation parameters and their accuracies without feedbacks and cross data communications ) ; a novel conservative optimal fusion method of non - feedback multi - source correlated estimators is presented, and this method is extended to the case of more than two data sources ; some new theorems are supplied or proved so that our methods are naturally connected to the achievements up to present, and the integrated theory basis of non - feedback multi - source correlated estimators fusion is founded

    具體內容如下：研究了最一般的導航數據融合問題（局部導航儀直接輸出導航參數及精度，且無反饋、無局部導航儀之間的交叉數據通訊） ；提出了一種新的無反饋多源相關估計向量的保守最優融合演算法，並將該演算法由兩個數據源推廣到了多個數據源；補充證明了一系列定理，從而將本文方法和前人研究成果有機地融為一體，建立了完整的無反饋多源相關估計向量融合的理論體系。
  20. Using the idea of multiscale analysis and by combining the model - based analysis method for dynamic systems with the multiscale signal transformation method, we put forward a new algorithm of multiscale distributed information fusion estimation. for multi - model dynamic systems having different description for target state at different scales, at the finest scale we can obtain the optimal fusion estimates based on global information, which give a primary solution to the information fusion estimation of multiscale dynamic systems. this work enriches and develops the information fusion theory

    利用多尺度分析的思想，將基於模型的動態系統分析方法與基於統計特性的多尺度信號變換方法相結合，在不同尺度上擁有對目標狀態進行不同描述的多模型動態系統，提出多尺度分散式信息融合估計新演算法，在最細尺度上獲得目標狀態基於全局信息的融合估計值，初步解決了多尺度動態模型信息融合問題，這些工作豐富和發展了信息融合理論
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