statistic frequency 中文意思是什麼
statistic frequency
解釋
統計頻率-
It is difficult point of the design of the new system that directly generated statistic data from the data sources. because that the ability of monitoring of each enterprise of petrochina is different. especially they lack of some monitoring point, and the monitoring frequency is inconformity
從數據源直接生成統計匯總數據是新系統的設計難點和突破口由於股份公司各企業監測能力和具體情況懸殊很大，存在監測頻率不一致、監測點位不足等問題，使得監測點類別劃分上很困難。 -
Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath
在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。 -
The whole thesis consists of three parts. firstly, we establish the meteorological disaster database of jilin province and deduce the statistic frequency of the main meteorological disaster on the base of choosed meteorological disaster index. the spatial distribution law and time variation of drought, flood and low temperature cold damage are concluded with the gis technology
全文主要由三部分組成：首先，在選擇氣象災害指標的基礎上，建立了吉林省氣象災害數據庫，統計主要農業氣象災害的發生頻率，然後利用gis技術得到吉林省旱澇、低溫冷害的空間分佈規律和時間變化。 -
The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )
軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。 -
Data processing software is designed for tbs - 2000 strain measuring system in the classical virtual instruments engineering workbench ; it is applied to process the data which are acquired in the way of dynamic stress analysis, statistic stress analysis and proper frequency analysis
利用虛擬儀器的典型開發平臺labview針對tbs ? 2000應變測試系統開發了數據處理軟體；利用該數據處理軟體對測試所得的數據進行了動、靜應力分析和固有頻率分析。 -
In this paper, the word segmentation technology of chinese text classification is debated emphatically. and the method of word segmentation based on the phrase labeling of 2 - gram syntax is put forward combining the method of setting separate - signs and the method based on the statistic of word - frequency, which can recognize the vocabularies which the method based on the dictionary can not manage
對于基於信息過濾的自動分類問題，使用字典分詞並不是一個必須的過程，因而本文提出了基於2元語法短語標引的分詞方法，它將設立切分標志法與基於詞頻統計的方法相結合，可以識別基於詞典方法處理不了的詞匯，如：人名、地名、專業術語等。 -
In this thesis we firstly made all kinds of statistics on chinese character stroke information of chinese national standard code for information interchange ( gb2312 - 80 ), such as the average strokes of each chinese character and each character which uses utility frequency as its weight, the average strokes of each character been added weight or not that can be differed from the other characters, the number of chinese characters which begin with each stroke, the times of each stroke in the chinese character set, the chinese characters which have same strokes in the chinese character set, and the frequency of adjacent stroke, etc. according to the statistic, we have devised a new chinese character keyboard input method named " stroke code " by adopting the stroke sequence of hand - written chinese character as its input codes and designed a kind of key arrangement for the method
論文首先統計了國標二級字庫中漢字筆畫信息的各種數據，這些數據主要包括：漢字的平均筆畫數及按使用頻度加權的平均筆畫數、能與其它字區分開的漢字前若干筆畫的平均數與加權平均數、以各種筆畫起筆的漢字數、各種筆畫在漢字字庫中的出現次數、漢字字庫中筆畫相同的漢字以及漢字字庫中相鄰筆畫的頻度等。根據這些統計數據，我們採用書寫漢字時的筆畫順序作為漢字輸入碼，設計了筆畫碼漢字輸入法和實現該輸入方法的鍵盤。 -
Secondly, we bring statistic coding, prediction coding, transform coding and analysis & synthesis coding into radar area. according to the properties of radar data, we take 4 methods, which are huffman coding ; prediction error model and lzw coding ; fft, uniform quantization in each frequency bank and huffman coding ; wavelet transform, uniform quantization in each frequency bank and lzw coding, to compress the genuine ground clutter radar data and give the corresponding results
根據雷達回波的特性，分別採用了huffman編碼法，預測誤差模型和lzw編碼法， fft 、分頻帶均勻量化和huffman編碼的壓縮演算法，小波變換、子帶均勻量化和lzw編碼的壓縮演算法等四種演算法，並給出了用這些演算法對真實的地雜波雷達回波數據進行壓縮的實驗結果。 -
Based on the statistic analysis of the natural language and inter - language data, we have given an error - analysis of the overseas students ' usages and the general learning stages as well as the usage frequency of the native speakers
在此基礎上，對自然語料和中介語語料進行了統計和分析，對留學生的正誤使用情況做了系統的分析和歸納，並統計出留學生習得中動句式的大致順序及本族人的使用頻率。 -
On base of studying domestic and foreign theories and methods for evaluations of st achievements, this thesis analyze 10 methods for evaluations of st achievements, such as application frequency statistics, delphi, literature research and application relevance analysis, etc. by studying and analyzing the work of technology planning bureau, transport ministry between 1991 and 2000, and the evaluation items for the achievement identification, acceptance and check - up which were taken by transportation technology department, the author come up with some methods, which are scientific, standard and quantified, for evaluating transportation st, that is, in accordance with the transportation st achievement management and achievement precise database within eighth five and ninth five, and with the statistic analysis such as research contents, professional classification, intensity input, achievement characteristics, field distribution, characteristics of department undertaken, st talents characteristics, award inf ormation, characteristics and regularity of transportation st achievements, problems that are still existed and countermeasure are forwarded ; according to the requirement of evaluations system of the transportation st achievement, the principle and methods for the system designation are given, and the constitution of the system are provided ; in order to improving the scientific organization and management of our national transportation st achievements, many subjects are under discussion, including institution for evaluation of st achievement, valuation organization, standard for evaluation technology, database for consulting transportation experts and how to simplify the procedure of transportation st achievement, etc.
本論文在對國內外科技成果評價理論、方法廣泛調查基礎上，研究分析了諸如應用頻次統計法、德爾菲（ delphi ）法、文獻調研法、應用相關分析法等10種科技成果評價的方法，通過對1991至2000年交通部科技計劃所實施情況，由交通科技主管部門組織進行了成果鑒定、驗收和評審等成果評價的項目的分析，提出了本人對交通行業對科技成果進行科學、規范和定量地評價的方法，即：在建立「八五」 、 「九五」交通科技成果管理及成果簡要數據庫的基礎上，通過對研究內容、專業分類、投入強度、成果屬性、地域分佈、承擔單位屬性、科研人員屬性和獲獎情況等諸多方面進行統計分析，研究了交通科技成果的特點和規律，提出了存在的問題和對策；從建立交通科技成果評價指標體系的要求上，具體提出了交通科技成果評價指標體系設計原則與方法探討了交通行業科技成果評價指標體系的構成及權重確立等問題；從加強我國交通行業科技成果評價的科學化組織與管理出發，探討了如何建立科技成果評價制度、評價機構、統一的評價技術標準和交通行業專家咨詢數據庫以及如何簡化交通科技成果評審形式等問題。 -
The research of reservoir design flood is one of basic works in this subject. it is based on the reasons, and the actual conditions of baipenzhu reservoir are combined, the following contents are researched in this paper : 1. according to the actual conditions of baipenzhu reservoir and through the compare of parameters estimation methods, a objective and having fine statistic characteristics p - iii frequency curve distribution parameters estimation method of proximate baipenzhu reservoir is putted
正是基於這種考慮，本論文結合白盆珠水庫的實際情況，本著理論性與實用性相結合的原則，重點研究以下內容： 1 、根據白盆珠水庫的實際情況，對各種參數估計方法進行比較，提出一種客觀、有良好統計特性、適用於白盆珠水庫的p ?型分佈參數估計方法； 2 、利用實測流量資料推求設計洪水過程； 3 、分析計算可能最大洪水（ pmf ） ； 4 、對兩種方法計算的設計洪水過程進行調洪演算，推求水庫特徵水位。 -
Texture is an important image feature that is hard to describe. the analysis methods mostly include statistic method, structure method and frequency method
紋理是圖像中一個重要而又難于描述的特徵，通常採用統計方法、結構方法以及頻譜方法進行分析。 -
Statistic stress dangerous positions of bump on different working situations are got by generally analyzing all of the data. the working frequencies on different working situations are gained during the course of dynamic stress analysis, at the same time they are compared with the results of the bump hydraulic system measuring experiment, they are quietly consistent with each other. the main aim at analysis of the bump inherent frequency is to get its first frequency, which is used to find out the reason why the bump vibrates so serious
在進行靜應力分析中，計算出該型泵車所測工況所有測點的靜應力，通過對所有數據綜合分析之後，得出該型泵車在工作時不同工況的靜應力危險部位；在進行動應力分析過程中，分別求出不同工況的工作頻率，並與該泵車液壓系統測試實驗分析結果進行比較，二者結果比較吻合；對泵車進行固有頻率分析的主要目的是求得該型泵車的一階固有頻率，以尋求該泵車振動較大的原因。 -
In this paper, a pump auto piping concrete made by some company is used as an object of study, and tbs - 2000 strain measuring system is used to measure the pump in the way of dynamic stress, statistic stress and proper frequency
本論文以某公司生產的水泥混凝土泵車為研究對象，採用tbs ? 2000應變測試系統對該泵車進行了動、靜態應力測試及固有頻率測試。 -
In the leakage characteristic test, the problem of small leakage flow automatic test is solved with the method of usage of an ellipse gear flow meter and a self - made interface circuit. in the dynamic state characteristic test, frequency sweeping and statistic methods are used and their results are compared with 1250 frequency response analyzer
在電液伺服閥動態測試實驗中，採用了掃頻法和統計法這兩種不同的方法進行測試，並對實驗結果與1250頻響分析儀所測的結果作了對比，發現二者基本一致。 -
The c / s pattern can be used in the limited - ranged operations which are characterized by high security, high frequency of data processing, heavy transmission of data, good mutual - communication and fixed - places, such as the input and maintenance of graduate information, the management of code table, data backup and recovery. whereas, the b / s pattern can be used in the wide - ranged operations, which are characterized by low security requirement and mutual - communication, and flexible places, such as the release of requirement, the query of graduate information, on - line registration of graduate data and all kinds of query and statistic
在安全性要求高、數據處理頻繁、數據傳輸量大，交互性強、地點固定的小范圍內的業務，如畢業生信息錄入及維護、代碼表管理、數據備份和恢復等模塊採用c s模式實現；而在安全性和交互性要求不高、地點靈活的廣域范圍內的業務，如需求信息發布、生源信息查詢、畢業生詳細資料在線登記和各種查詢、統計等模塊採用b s模式。 -
A time - frequency analysis method is presented to solve paper machine press section bearing vibration signals of unstable and complication, applying wavelet function to the unstable signals for faulty bearing according to paper machine press section roll bearing characteristic, and process the vibration signals by means of decomposition and reconstruction, obtaining the vibration signals in different frequency bands, the statistic in frequency domain of relevant frequency bands is served as monitoring feature
摘要針對紙機壓榨部滾動軸承尺寸大響應弱、運轉速度低、低頻信號容易淹沒、調制源多、振動信號非平穩性等特點而導致常規的傅立葉分析診斷故障效果不佳的情況，提出了一種應用小波變換的時頻分析方法，對振動信號進行分解和重構處理，獲得了振動信號在不同的頻段的分量，提取相應特徵頻段重構分量的功率譜的頻域統計值作為特徵參數，從而實現對軸承故障診斷。 -
3 ) find out the project post - evaluation index system of the highway sustainable development through the study on the research achievements of our predecessor, the extensive exploration, the use of the frequency statistic law and the main factors analysis method to analysis, distinguish and select the factors which can affect the
3 ）結合前人的研究成果，通過廣泛的調查研究，運用頻度統計法，主成分分析法對影響高速公路建設項目可持續發展的因素進行分析、識別和篩選，得出影響高速公路建設項目可持續發展后評價的指標體系。 -
2. some phenomena of price complexity are discovered in csm, which are the complicated structure of returns frequency distribution and its evolution ; persistence and evolution of the market ; stable cycles in long - term, and persistence and reversion in short - term, using these methods, such as statistical test, rescaled range analysis, ljung - box test, bds test, v - statistic, spectral analysis, time - frequency analysis and so on
2 .利用統計檢驗、重標極差分析、 ljung - box檢驗、 bds檢驗、 v統計量、譜分析及時頻分析等方法發現了中國股票市場價格復雜性的三種現象，即收益率分佈的復雜結構及其演化現象、市場的持續性及其演化現象、市場長期穩定非周期循環和短期持續與反轉現象。
分享友人