距離變率 的英文怎麼說
中文拼音 [jùlíbiànlǜ]
距離變率
英文
range rate-
Charted with them, and guangzhou time units was preliminarily analyzed as well. secondly, the author introduced the way and the signification of temporal position analyse with examples. thirdly, taking on - the - spot survey method as a practical tool, the author obtained data of temporal distance between each time unit at the verge of different urban districts and the central time unit of the city
論文以廣州市為實證研究的對象，對廣州的市區范圍進行了時間單元的劃分並繪制出了時間單元圖，同時對廣州的時間單元滿意率進行了簡單的分析；接著以實例介紹了時間區位分析的方法和意義；然後利用實際測量法，在不同時間段測得廣州市時間中心到城建連片區各邊界點的時間距離，繪制出時間廓線，得出廣州市城建連片區的時間形態現狀及時間形態的日變化規律。On the base of researching the theory of the scheme and analyzing the signal feature, it is obtained that the existence manners and character of distance information in the differential frequency signal. at the same time, a new conclusion is gained that the technology of frequency agility can decrease the constant error of system. it is also to say that frequency agility and frequency modulation fixed - distance fuze has the similar feature to random period frequency modulation fixed - distance fuze. according to the theory of address coding in the hopping - frequency communication, the paper presents the principle of selecting the frequency agility sequence which fit to the radio fuze and constructs the frequency agility sequence family based on the rs codes
在深入研究方案原理和分析信號特徵的基礎上，獲得了該體制引信差頻信號中，距離信息的存在形式和特點，得出了頻率捷變技術的引入降低了系統定距固定誤差這一新的結論，即頻率捷變調頻定距引信在定距性能上具有類似隨機周期調頻定距的特徵。本文引入跳頻通信地址編碼理論，結合無線電引信的具體特徵，提出了適用於無線電引信的頻率捷變序列的選擇原則，並構造了基於rs碼的寬間隔頻率捷變序列族。The optical near - field distribution and propagation properties of solid immersion lens system are analyzed in detail when illuminated by linearly polarized focusing gauss beam. the change of the optical intensity and beam dimension at the bottom of solid immersion lens with different refractive index and different distance are discussed. the simulated results reveal that the higher the refractive index is, the stronger the optical intensity and the smaller the beam dimension at the bottom of the solid immersion lens will be
編制了對固體浸沒透鏡近場超高密度光存儲系統進行模擬的二維時域有限差分程序，實現了對固體浸沒透鏡光存儲系統的數值模擬；著重研究了線偏振的高斯光束通過固體浸沒透鏡的光傳輸和近場光場分佈特性；分析了固體浸沒透鏡底面出射光強、光斑直徑隨固體浸沒透鏡折射率的變化、光透過固體浸沒透鏡后的強度、光斑直徑隨離開固體浸沒透鏡底面距離的變化。For short wavelengths, approaching the intermolecular distance, the velocity can vary with wavelength
而對于波長短到接近分子間距離的波，其速度則會隨頻率而改變。Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar
高頻雷達工作在擁擠的短波波段，由於絕對占優的一階海浪回波的存在，必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波，以提取目標信息。Eric li, convenor of the breakfast group in the legco, remarked that although singapore, one of hong kong s biggest competitors, offered a bunch of tax concessions to foreign investors, there was still a gap between hong kong s tax rates and those in singapore. therefore, slight increases in certain taxes would not drive foreign investors away. he added that as long as the government did not change the profits tax and the salaries tax into complicated taxes such as level - by - level progressive taxes, hong kong s edge of simple taxation would not be jeopardized
立法會議員、早餐派召集人李家祥則表示，即使香港最大競爭對手，如新加坡等均會向外商提供多種稅務優惠，但香港與新加坡的稅率仍有一定距離，所提高若干稅率，亦不會導致外商撤離；他補充，只要政府沒有將利得稅或薪俸稅改變為分段式的累進稅等復雜稅項，就不會破壞香港簡單稅制的優點。Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。The new ways that solve multiple objectives decision making under risk into probability permanent type : decision making diagram method, matrix analysis method, multiple objectives markov method, the shortest distance method, successive type variation multiple objectives decision making under risk method and fuzzy analysis decision making method. 3. the new modes that solve multiple objectives decision making under risk into probability interval type and uncharted type : weighted method and sorting method 4 the new repent average value criterion that handle multiple objectives decision making under risk into probability uncharted type and generalizing the criterions that have been used into one objective decision making under probability into uncharted type to multiple objectives decision making under probability into uncharted type. 5. giving the error analyses method and decision result regulating method that been used into multiple objectives decision making under risk
2 、探討了『決策圖法』 、 『矩陣法』 、 『多目標馬爾科夫法』 、 『最小距離法』 、 『連續型變量的多目標風險型決策法』和『模糊分析決策法』等解決概率固定型的多目標風險型決策的新方法。 3 、探討了『加權法』 、 『排序法』兩種解決概率區間型和未知型的多目標風險型決策的方法； 4 、在概率未知型的多目標風險型決策中改進了『後悔值準則』 ，提出了『後悔均值準則』 ；並將單目標概率未知型風險型決策的準則推廣運用到多目標概率未知型的風險型決策中去； 5 、探討了多目標風險型決策方法誤差分析及決策結果值調整的方法。In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam
同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。The simulation on synthetic data is made and the result is discussed. 5 ) by using borland c + + builder and matlab, a semi system, i _ miner, is developed to mine association rule. it can realize other functions just as data cleaning, data transform, etc. furthermore, i _ miner is applied to an actual industry database
提出用趨勢變換序列dtw距離做篩選的搜索方法，有效提高整個搜索效率，並在模擬數據庫上進行模擬實驗，並對實驗結果進行分析和討論； 5 ）以borlandc + + builder和matlab為開發平臺，設計一個進行關聯規則挖掘的準系統i _ miner ，可以實現數據預處理，數據變換和關聯規則挖掘等工作。Several results were concluded : firstly, the population of t. jackii was decreasing sharply and its living area was contracting, so the percentage of genetic variance among t. jackii populations was lower than that within its population ; secondly, its genetic diversity index was relatively high ; thirdly, according to its gene flow index, the population disintegration of the species could be prevented by genetic communication among populations of the species ; finally, the similar index between the populations from jiangshi nature reserve and from xufan reservoir was higher than that between the populations from jiangshi nature reserve and from xufanggeng, corresponding with the fact that it is nearer between jiangshi nature reserve and xufan reservoir than that between jiangshi nature reserve and xufanggeng
2 、長葉榧的遺傳多樣性分析，分析了多態位點百分率（ percentageofpolymorphicsites ） 、 nei氏基因多樣性指數（ nei 』 sgenediversityindex ） 、 shannon信息指數（ shannon 』 sinformationindex ） 、居群間的相似系數（ geneticsimilarityindex ）和遺傳距離（ geneticdistance ） 、遺傳變異在居群間和居群內的分佈（ thepercentageofvarianceamongandwithinpopulation ）及基因流（ geneflow ） 。結論是：分佈在群體間的遺傳變異較分佈在群體內的遺傳變異小，說明該生物的分佈范圍越來越狹小。The algorithm can be applied to connection routing in pcbs with various pad geometry and pad sizes, with different wire widths and variable distances between wires. the basic element in routing is the search line with a given destination. the main features of the router are the target orientation of the search lines, the routing efficiency is guaranteed by rationally designed data structures and by the ability of searching around obstacles, the small amount of working storage and the reasonably short routing time
該布線演算法適用於焊盤外形尺寸不一，線寬及線間距離可變的印刷電路板布線，其基本要素是帶有預定終點的探索線，特點是線探索具有目標針對性，設計合理的數據結構及靈活的繞障探索方式可大大提高搜索效率，所需存儲量小，布線速度快。By responding to changes in distance, you can maintain an almost constant ratio between texels in the impostor image - ideally this ratio would be 1 : 1
對距離變化的回應是，你可維持視點替用特效紋理的紋素之間的一個幾乎恆定的比率?比率的最佳理想值應該是1 : 1 。The emulational calculating theories of traction power supply system ' s operating charts combine with actual things of engineering design at present in chapter three, to set up traction web current distributing mathematical model, integral distributing mathematical model, locomotive distribution and obtaining current model at every moment, and on which making use of mathematical planning methods to set up mathematical models is based at every moment in every instance interval of the railroads. for instance, instantaneous current, instantaneous voltage descent and effective current, main changing capacity and so on, in addition, there are the minimum power shortage model, the optimal transformer substation location, the least engineering expenditure, the optimal mathematical model of traction power supply system. optimize design ' s algorithm of traction power supply system is introduced in detail in chapter four, where programming idea and realizing method of the computer software are given an explanation
本研究主要進行了以下工作：結合牽引供電系統運行圖的模擬原理和現行工程設計的實際情況，建立了牽引網電流分佈、積分分佈、任一時刻機車分佈和取流的數學模型；應用數學規劃方法建立了任一距離區間、任一時刻的瞬時電流、瞬時電壓降數學模型和有效電流、主變容量和主變壓降、最小功率損失、最佳變電所容量、最佳變電所位置、最少工程費用、最少運營維護費用和牽引供電系統方案最優等方面的數學模型；闡明了牽引供電系統優化設計的演算法和計算機軟體編程思想及實現方法；進行了工程實例計算；最後，對牽引供電系統優化設計技術應用進行了總結。In this thesis a high precision frequency ( range ) estimation technique based on the phase of the fft of the beat - note signal is presented. the phase of the fft of the beat - note signal changes with the range between the radar and the liquid surface
差拍信號的fft幅度最大處的相位隨距離變化，因此可以利用fft相位在一個頻率（距離）分辨單元范圍內估計差拍信號的頻率（距離）的位置，從而提高頻率（距離）估計精度。Abstract : based on two order approximation of the variation of refraction index produced by self - action while optical pulses are traveling in kerr - medium, the propagation equation has been solved. furthermore, the strict analytical expressions of the amplitude, width and chirp parameter of chirped gaussian pulse, relative to the propagation distance, are deduced. the solitary wave traveling conditions of fundamental mode gaussian pulse have been discussed
文摘:將光脈沖在克爾介質中自作用產生的折射率變化作二階近似，求解所得到的傳播方程，得到啁啾高斯脈沖幅度，脈沖寬度和周啾參數隨傳播距離變化的嚴格解析解，討論了基模高斯脈沖孤波傳播的條件。Range - rate data
距離變率資料Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上，提出了因血細胞中存在多種熒光團，且這些熒光團的電子能級上又存在大量的不同的振動能級，從而導致被激發的熒光團發出較寬的熒光光譜；血細胞濃度的增大，熒光團以及其他大分子之間的距離變小，造成它們之間因碰撞的能量轉移概率加大，因而易產生熒光猝滅，結果導致熒光強度的變小；血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射，以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因；進而研究了led光誘導血細胞產生熒光光譜的機理。To improve efficiency of reconstruction, the method of image collection that collected objects on the revolving flat roof is pegged and transform angle and distance is designed, and relation in sampling images. yawp of images is removed by dealing with intensity correlation and smoothness
為了提高重建效率，本文採用將重建對象固定在旋轉平臺上，通過角度和距離變換進行圖像采樣的方法，加強了采樣圖像之間的聯系;通過灰度處理、平滑化等預處理來消除噪聲，為后續的特徵提取和特徵匹配打下了良好的基礎。But the phase changes many times of in while the range changes within a range - bin, thus ambiguity will occur in the phase measurement. to avoid the ambiguity in measuring the phase of the fft, the sampled data are divided into two segments, then apply fft on each segment of data separately
，因此可以用來估計距離（頻率x但是由於兩個fft的相位差隨距離的變化比fft的相位本身隨距離的變化慢很多，因此利用分段fft相位差估計距離要求fft相位測量誤差很小，為此本文又提出了利用分段fft的相位差消除相位測量模糊而用其中一段fft的相位估計距離的方法。分享友人