組內變差 的英文怎麼說

中文拼音 [nèibiànchā]
組內變差 英文
within variation
  • : Ⅰ名詞1 (由不多的人員組成的單位) group 2 (姓氏) a surname Ⅱ動詞(組織) organize; form Ⅲ量詞(...
  • : 名詞1. (內部; 里頭; 里邊) inner; inside; within 2. (妻子或妻子的親屬) one's wife or her relatives 3. (姓氏) a surname
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及異規律,進一步明確了掌握地物光譜特徵和異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度化引起的反射率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相較大的兩類地物,通過引入均值和方圖像參與分類得到解決;研究還表明在植被「紅邊」范圍的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  2. It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中,木耳屬2個種的2個菌株在its區域表現出較高的保守性, 4種限制型切酶的酶切圖譜沒有顯示出多態性;增加切酶種類及供試菌株數量,有可能獲得具有多態性的限制性切酶酶切圖譜; 9本實驗中, its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大異,擴增片段長度均為650bp左右; 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析,紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法,兩者的關系是相輔相成,互為驗證
  3. Section two the evaluation of biocompatibility of the acellular dermal matrix by the method of cell culture. the new born rat ' s epdermic cells were cultured with the acellular dermal matrix together as experiment group, while the epdermic cell were cultured simply as control. 24 hours later, under the invert microscope, the epidermic cells anchored well and transparent flat cells were observed in both groups. 7 days later, both cultured cells were taked out and fixed in 95 % ethanol, stained with hematoxylin and were observed under light microscope. many cleaved cells were observed in both groups. during cell culture, no pathogenic microganism was observed. so we considered the acellular dermal matrix was aseptic and had good biocompatibility. section three subdermal implantation of the acellular dermal matrix. 24 rats were used in the experiments. a piece of acellular dermal matrix ( 1. 5 x 1. 5cm2 ) was implanted beneath the dorsum skin flaps of each rat, 1 week, 2 weeks, 3 weeks and 4 weeks after implantation, 6 pieces of acellular dermal matrix were harvested and the size of implanted acellular dermal matrix were measured, the sections were used for he staining and observed under light microscope. the result were as folio wing : 1 - 2 weeks after implantation, the acellular dermal matrix began to adhere to the tissue around and turned red gradually ; 3 - 4weeks after implantation, the acellular dermal matrix adhered closely to the tissue around and could be recognized easily, 1 - 3 weeks after implantation, the size of implanted acellular dermal matrix had no statistical difference ( p > 0. 05 ). 4 weeks after implantation implanted acellular dermal matrix contracted ( p < 0. 05 ). under light microscope, l - 2weeks after implantation, the fibroblast cells infiltrated the acellular dermal matrix and a small amount endothelial cells of vessel and lympho - histiocytic cells infiltrated the acellular dermal matrix. 3 - 4 weeks after implantation, infiltrating blood vessels were evident. so we think that the acellular dermal matrix had low immunological reactions and could induce the infiltration of fibroblast macrophage cell and the endothelial cells of vessel

    結果如下:皮下包埋卜周者,無細胞真皮基質漸與周圍織粘附,顏色由蒼白轉紅;皮下包埋3周者,無細胞真皮基質與周圍織緊密枯附,盾晰葉辯;術后卜周,包埋的基質面積化較包埋前無統計學異o川0引,術后4周包埋的無細胞真皮基質面積較包埋前縮小j刃刀5 ) 。光鏡下術后卜周,宿主的淋巳織細胞、成纖維細胞浸入生長,釉附在膠原纖維上,少量血管皮細胞浸入基質;術后34周,無細胞真皮基質較多的血管形成,故可認為無細胞真皮基質免疫原性低,能誘導宿主的成纖維細胞、巨噬細胞浸入生長,為一種新型的真皮替代物。第四部分無細胞真皮基質與自體斷層皮片復合移棺的研究, sd大鼠10隻,在其背部卜方造成全厚皮膚缺損的創面
  4. Crank of internal combustion engine after every process and hot surface treatment will produce fairly deformation, that is jumping overproof. so alignment without destroy for its tissue and property is important factor which ensure operation of crank safely

    燃機曲軸在各加工工序及表面熱處理后會產生一定的形即跳動超,對其織和性能無破壞的校直是保證曲軸安全運行的重要因素。
  5. The subject for different process technology and surface treatment of crank takes tracking checkout for its internal stress, analyses relation of jumping measurement, deformation measurement, recovery measurement and stress change, finds the reason and usual law of jumping overproof of crank. through cold pressure alignment, hot pressure alignment, support aged alignment and so on methods for 42crmo steel crank, the subject checks change of stress in the process of alignment and change of tissue and property after alignment for crank, and gives comprehensive evaluation for every alignment technology, then give safe and feasible technology parameter

    本課題主要是對不同加工工藝及不同表面處理過程的曲軸,對其應力進行跟蹤檢測,分析各工藝過程中跳動量、形量、恢復量與應力改的關系,找出曲軸跳動量超的原因和一般規律。通過對42crmo鋼曲軸進行「常溫壓力校直」 、 「熱壓力校直」 、 「支撐時效校直」等方法的校直,檢測校直過程中曲軸應力的化及校直后織和性能的改,進而對各校直工藝進行綜合評價,給出安全可行的工藝參數。
  6. The great drive served by the rural educational system reform to the development of rural community education, and the existing problems of rural education as well as both the opportunities and challenges faced with the rural community education. chapterlv. this chapter offers a comprehensive analysis of the current situation and existing problems of china ' s rural community education

    首先,闡述了農村教育理念的革、現代農村社區教育思想的發展以及農村社區教育的興起與發展;其次,從教育目標與容、類型與特點、織機構與管理保障等方面,對目前農村社區教育的發展現狀進行了比較全面的分析,同時分析了農村社區教育的區域異及基本經驗;最後,指出了農村社區教育面臨的問題,並對農村社區教育發展走向進行了分析。
  7. In views of hebei province ' s existing situation of rural economy, and with reference to the civil and abroad achievements in scientific research on the field, this thesis choose two sample groups - 11 cities and 138 counties of hebei province in light of division into districts and analyses the rural economy difference of hebei by using total and mean index, the social product gross of rural, rural labor productivity, the mean net income of rural, and methods of variation coefficient, comprehensive index and so on.

    針對河北省農村經濟發展的現狀,本文借鑒國外區域經濟異的有關研究成果,以現行行政區域為基礎,通過截取河北省11個地市和138個縣(市)兩不同的樣本,選取總量指標農村社會總產值,人均指標農村人均社會總產值、農村勞動生產率、農民人均純收入,運用異系數、綜合指數等方法對河北省農村經濟的異進行分析。
  8. The first step is to build up the mind to satisfy the customers, nail down the direction of development and the mission of the enterprise, formulate the object which is composed of market, innovation, profit and society, and determine the direction of development. the following step is to analyze comprehensively the opportunities and threats from the external environment, and also the advantages and disadvantages in the internal environment, as to construct and foster the core competence of the flour manufacturers. the third step is to exert comprehensively the strategy of cost - leading strategy, difference strategy integrate strategy target - focus strategy and diversification strategy to foster and maintain the core competence

    麵粉製造企業的核心競爭力管理的過程包括: ( 1 )樹立顧客滿意的戰略思想,明確企業的發展方向和企業使命,並制定由市場目標、創新目標、盈利目標和社會目標成的戰略目標,決定麵粉製造企業核心競爭力的發展方向; ( 2 )對麵粉製造企業外部環境的機會和威脅、部環境的優勢和劣勢進行綜合的戰略分析,構建和培育麵粉製造企業核心競爭力; ( 3 )綜合運用成本領先戰略、別化戰略、集中目標戰略、一體化戰略和多樣化戰略來培育和維護麵粉製造企業核心競爭力; ( 4 )制定職能戰略、進行以企業核心競爭力為載體和顧客滿意為最終奮斗目標的織結構革,提高企業領導人的核心競爭力意識,維廣東工業大學管理學碩士學位論文護和發展麵粉製造企業核心競爭力: ( 5 )發展和再造麵粉製造企業核心競爭力等五個步驟。
  9. This results showed the program can be used to simulate the variation of sewage qulity validly and exactly in a sewer which has the same characteristic with that sewer. analysing the real data and simulation data ss and xs decreased apparently ; xbh increased apparently ; snh, snd, and xnd have little variation

    對西安市某污水管道進行水質測定和模擬,各分實測值與模擬值的相對誤均小於5 . 0說明兩者較為吻合,應用模擬程序可以對具有上述管道特徵的排水管道水質化進行有效和較為準確的模擬。
  10. Firstly, the paper retrospects the development of eso and tries to probe into the theoretical field : the explanation of it ' s definition, the conclusion of it ' s characters, the comparison of eso and other stock inspiration system, followed by the analysis of it ' s theoretical basis and incentive effect ; meanwhile, the paper probes into the realistic situations of eso in usa and china in order to seek the regulation and draw the advantages and disadvantages ; to this part, the paper takes the following four items as the main barriers to eso ' s implementation in china : the over restriction of current law system, the low efficiency of the market, the poor corporate governance structure and a lack of a reasonable performance index system, and elaborately analyze the impacts of the obstacles on eso ; after the analysis made above, the paper gets down to taking some methods to solve the problems in accordance with the characteristic of the barriers. as far as the internal defects of the mechanism are concerned, the paper begins with the scientifically design of the key components, studying the aspects of bestowal, change, loss, the executive method and the executive time. then the paper focuses on designing a performance index system which is an essential part of eso, introducing the bsc to improve the present performance index system, under the reasonable guidelines resigning it at both the levels of company ' s and employee ' s levels. finally, as regards how to perfect the outside surrounding of eso, the thesis makes some suggestion

    本文首先回顧了股票期權制在國外的發展及較為詳盡的分析了股票期權制度的相關理論:闡述了其涵義,特徵,理論基礎,激勵效應並於其他幾個較易混淆的股權激勵機製作逐一的比較,以進一步澄清人們對其的錯誤認識;同時,對股票期權制在美國和我國的現狀進行深入的實證研究,探求其在規律,在肯定其成果時指出其不足;至此,筆者認為,我國上市公司要推行股票期權制度將主要面臨以下四類障礙:公司治理結構不完善、市場有效性、現行法規體系不完善及缺乏客觀的業績考評指標體系,並詳細分析了各類障礙的現狀及對股票期權制的負面影響;在此基礎上,針對各類障礙的不同性質,著手探討消除這些障礙的措施:對于股票期權制部的缺陷,本文先對各個關鍵要素進行科學設計,系統的剖析了贈與、更、喪失、執行方式、股票來源等技術性問題,再以大量篇幅研究了如何構建出一套與實施股票期權制相配套的業績考核指標體系,引進平衡計分卡的思想對國現有的指標體系加以改進,以一合理的評價原則為指導,從公司及員工個人業績考評兩個層面上來設計該指標體系。
  11. Our results provided direct evidence that pf40 gene play a role in the tissue development, with knockout this gene the lateral buds were not visible. the plant hormones auxin and cytokinin appear to play a major role in controlling this process, therefore, the concertrition of auxin and cytokinin was measured, however, the concentration of the two hormone was variation a little in transgenic plants, but the ratio of the two was more than 5 fold in the pf40 gained function plant than that in wild type. furthermore the pf40 gene effected differentiation of the vascular bundles in different transgenic plants, results showed the pf40 could change both xylary fibers and vessel

    進一步的實驗發現pf40基因會影響植物側芽發育的早期,即pf40基因作用在側芽形成與發育的早期。對轉基因穀子的織切片的分析還表明pf40基因引起不同形式的轉基因穀子的維管織的發育的異,轉化正義載體穀子的木質部多,維管系統增多,而反義或干擾的轉基因穀子的木質部數量少,木質部分化異常。從轉基因的結果可見pf40基因可以減弱植物的頂端優勢,這種作用是通過改植物體激素的含量實現的。
  12. Under the direction of chinese soil taxonomy, part purple soils developed on the purplish standstones of j2 # j3 in sichuan basin were systematically studiedaccording to natural landscape, profile modality and quick - test, applying to methods statistic analysis and system integration, main affecting factors, indexs of soil series taxonomy and retrieval orders were systematically discussed. the results showed : 1 ) organic substance, total nityogen, total phosphate, total potassium and particle size composition were distinctly related with many soil characters. organic substance, calcium carbonate, available phosphate # size composition were much different in all swatches. besides, soil structure and the depth had profound affection to it. 2 ) affecting factors : soil structure, texture style and organic substance phosphorous

    本文以土壤系統分類理論為指導,以四川盆地侏羅系蓬萊鎮、沙溪廟和遂寧紫色巖上發育形成的部分紫色土為研究對象,利用spss統計軟體相關功能,結合供試土壤的自然景觀、剖面形態和室測定的理化性質,對土系分化的影響因子、土系劃分指標和檢索順序進行了系統的探討,結論如下: ( 1 ) 、供試紫色土中有機質、全氮、全磷、全鉀和顆粒成與多個土壤性質均呈顯著或極顯著相關;有機質、碳酸鈣、有效磷、顆粒成等性質在供試土壤方分析中異系數均較大;土體構型及土體的深度對土壤性質也有深刻影響。
  13. As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv

    由於傳統的導航系統很難滿足遠程水下航行器精確導航、定位的要求,本文在充分考慮使用特殊性的情況下,結合國、外導航技術發展的實際狀況和發展方向,研究了水下航行器合導航系統的誤,重點解決了因多普勒輸出數據周期長和周期時而給導航計算和濾波器設計帶來的問題,並進行了模擬和實物測試,模擬和實物測試結果表明本文所研究的設計方案合理,可以達到某型水下航行器導航、定位需要的精度。
  14. Total of 14 dumbbell cfst columns were tested under eccentric loading, those with 6 specimens which concrete filled into the web space and those with 8 specimens which concrete not filled into it. experimental results indicate that, the portrait strain on the middle section of two type specimens keep on the plane with each loading. the maximum load of columns which concrete not filled into the web space is lower than those filled into it

    試驗結果分析表明,兩試件的中截面縱向應分佈在不同的受荷階段基本能保持平面;腹腔不填充混凝土的啞鈴形柱的極限承載力比腹腔填充混凝土的啞鈴形柱的極限承載力略小,但值不大,且這種值隨著偏心率的增大而減小。
  15. The article has researched the intention of agricultural industrialization which is guided by market and mainstay enterprises, based on agricultural product base organized by a lot of families, and characterized by joint management and mutual benefit. it also realized production specialization, product commercialization, service socialization and etc. the article has also researched the existing conditions of agricultural industrialization both at home and abroad. although it is different in national conditions and actual practice, the developed countries follows the market economic law and naturally steps on the road of agricultural industrialization. as the continuous reforming and opening up, china actively explores and enhances the management level of agricultural industrialization. the writer uses system changing theory, scale management theory, trade expense theory. market system theory and industrial economics theory, to put forward the main type of mainstay enterprises, which is divided by ownership, organization form, contact form and product. the writer thinks that development of mainstay enterprises can promote effective joining between small production and big market, the developing of high - benefit agriculture, establishing trade / industry / agriculture operation system, region economics and joining process between urban area and rural area. the existing conditions in strengthening the mainstay enterprises in zhaoyuan embodies continuous expanding in scale. continuous widening in fields, continuous enhancing in benefits, continuous improving in techology and quality. by finding the problem and shortage in product quality, developing ability and scale strength, the article has put forward the following views : face to market and enhance quality and techological content of agricultural products ; enforce flexible policy and investments ; establish fair and reasonable benefits joining system. the article has also put forward the countermeasures and suggestions on enhancing the enterprises ' management level

    文章研究了農業產業化經營的涵,明確其以市場為導向、以龍頭企業為依託、以一大批農戶成的農產品生產基地為基礎,形成農工商有機結合、風險共擔、利益均沾的本質特點,表現出生產專業化、經營一體化、企業規模化、產品商品化、服務社會化等特徵。分析了國外產業化經營的現狀,認為盡管各國的國情不同,具體的做法和叫法不盡相同,但是經濟發達國家都遵循市場經濟規律,很自然走上了農業產業化經營的道路,發展中國家紛紛仿效,中國也隨著改革開放不斷深入,積極探索發展提高農業產業化經營水平。作者運用制度遷理論、規模經營理論、交易費用理論、市場機制理論和產業經濟學理論,提出了龍頭企業從所有制形式、從織形式、從聯系方式及從產品上劃分的主要類型;認為發展龍頭企業有促進小生產與大市場的有效對接、推動優質高效農業縱深發展、建立貿工農一體化運行機制、振興區域經濟、加速城鄉一體化進程等作用;考察了招遠市壯大龍頭企業推進農業產業化的現狀,表現在規模不斷擴大、領域不斷拓寬、效益不斷提高、技術不斷改進、質量不斷提高等方面;找出了龍頭企業產品質量上、開發能力上、規模實力上和行業自律上的問題和距,提出了要面向市場,努力提高農產品的質量和科技含量,多策並舉,搞活投入機制,建立公平合理的利益聯結機制,加強行業自律,提高企業經營管理水平等對策和建議。
  16. The results showed that the in - situ formed tibi particles which had a size of about 50nm, exhibited a homogenous dispersion in the copper matrix. moreover, the interface between the nanoscale particles and the copper matrix was clean, and there was no certain location relationship. due to their reinforcement, the tensile strength and hardness of the in - situ cu - tib _ 2 nanocomposite significantly improved

    通過光學顯微鏡、 tem 、 xrd等對cu - tib2原位復合材料進行了金相織、微結構分析,原位復合材料的鑄態金相織中彌散分佈著團簇狀的tib2顆粒;形態金相織中tib2顆粒呈纖維狀排列; tem觀察表明:在基體存在著尺寸約為50nm 、彌散分佈的tib2顆粒,且tib2顆粒與基體之間界面清晰,但由於tib2結構與銅晶體結構的別較大, tib2顆粒與基體之間無固定的位向關系;納米tib對銅基體有良好的增強作用。
  17. On the basis of all these, the paper researches that the soil moisture content reduces slowly after 7 days , so establishes a main criterion of evaluating watering feature - the increment of average soil water content in 7 15 days. according to these theories, we draw an conclusion - water is injected at the position away from seed zone 3. 5 ( cm ), 6 ( cm ) deep with vertical flat nozzle, the effect of watering is better at the operation speed of 0. 9m / s

    得出7天後土壤含水量呈緩慢化的趨勢,進而提出了以7 15天平均土壤含水量與初始含水量的值作為評價坐水性能的指標,以此為依據得出在機作業速度由0 . 5m / s增加到0 . 9m / s的情況下,採用豎扁(不帶翅)施水管將所需的水施到種子帶橫斷面3 . 5cm ,深6cm的位置,坐水效果較為理想。
  18. At first reviewing the history of strategy management ; on the basis of analyzing the external environment and industry competition situation of this enterprise and analyzing its advantages and disadvantages. internal abilities, the paper points out the suitable development strategy for this enterprise - - the single - crop farming strategy concentrating its attention on piston ' s research and development producing and selling ; it should take advantage of established market network and good reputation on brand and select the style of initiative attack market leader strategy as its basic strategy ; meanwhile, it suggests that the enterprise should cultivate its own new core competence in the field of the piston ' s researching & designing rely on japanese and german technique ; according to the specific product ' s marketing status, it should acquire and maintain competitive advantages by adopting the low cost strategy and differentia strategy on the different products ; quicken the product configuration adjustment, enlarge the productivity of diesel oil piston ; it should establish strategy cooperation partnership with those strong domestic and foreign main engine manufacture enterprises. finally, the paper gives suggestions on organization structure system innovation, human resource management and exploitation, market management, quality management, information construction in the course of the enterprise strategy being implemented

    首先回顧了戰略管理理論的發展演歷程;然後通過對該公司的宏觀環境、行業競爭態勢以及企業的優劣勢、部能力等方面的分析,在此基礎上提出了適合該企業發展的戰略? ?專注于活塞產品的研製、開發、生產、銷售的單一經營戰略;充分發揮企業現有的在營銷、品牌方面的優勢,選擇積極進攻類型的市場領先者戰略作為其基礎戰略;並且提出了依託來自日本和德國的先進技術,培育企業在活塞產品設計、開發方面的新的核心競爭力的思路;根據產品市場的具體狀況在不同的產品線上分別採取成本領先及異化戰略獲取和保持競爭優勢;加快產品結構調整,擴張柴油機活塞的生產能力;與實力強大的國外主機企業建立戰略協作夥伴關系;最後對企業戰略實施中的織機構、制度創新、人力資源管理與開發、市場營銷管理、質量管理、信息化建設等重要問題提出了自己的見解和建議。
  19. System design means that the professional technologists conduct structure design on products of some kind according to their professional knowledge. the parameter design aims that the steady design scheme which is not disturbed by inside and outside factors could be found by studying general fluctuation produced by inside and outside interference, when controllable factors disturbing quality speciality of products change greatly, acceptance to lerance design is to make sure the calculation method of acceptance tolerance after confirming the central value of each parameter

    系統設計是指對某種性能的產品,專業技術人員利用專業知識進行的結構設計,參數設計的目的在於,當影響產品質量特性的可控因素大幅度,化研究、外干擾的綜合波動究竟有多大化,從而找出盡可能不受外干擾影響、穩定性好的設計方案(參數合) ;容設計的目的是在確定了各參數的中心值后,進一步確定容的計算方法。
  20. 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,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。
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