瑞利分佈 的英文怎麼說
中文拼音 [ruìlìfēnbù]
瑞利分佈
英文
rayleigh distribution-
2 rayleigy and weibull distribution ground clutter for airborne phased array radar ( apar ) general pulse signal was simulate with method of zero memory nonlinear transform
二、利用零記憶非線性變換法實現機載相控陣雷達常規脈沖情況下的瑞利分佈、韋伯爾分佈的地面雜波模擬。By applying the theory and method of geological anomaly, it is focused on the analysis of the characters of major geological anomalies and their effect of mineralization in daye - jiurui region. the analysis result shows that the basement fault anomalies control a few major large hidden batholiths and their associated orefields ; that the anomalies of cover structure confine most cu - au deposits and fe - cu deposits within their scope ; that the geochemical anomalies and lithofacies - paleogeographical anomalies are major geological factors leading to trataboundness of some cu - au deposits ; that the anomalies of rock operties provide the favorable chemical and physical conditions for the ore - forming process, including the seepage, circulation, convergence and deposit of ore - bearing hydrothermal solution ; that the anomalous ctive stage of mesozoic magmatite is almost consistent with the major mineralization epoch of the fe, cu deposits, and the structure of multi - levels, and the zoning in magmatic system determine the spatial distribution of the mineralization system. then, based on the above analysis, a comprehensive variate, geological combination entropy, is brought forward for reflecting the complex degree of the combination of geological ore - controlling factors. after circumscribing the anomalies of geological combination entropy, the relations between the anomalies and ore deposits are determined
從地質異常的角度，重點分析了大冶九瑞地區主要地質異常的特徵及其對成礦的影響.由分析可知：基底斷裂異常控制了本區若干重要規模較大的隱伏巖基及伴生礦田，而蓋層構造異常控制銅金礦床和鐵銅礦床的空間位置；地層的地球化學異常和巖相古地理異常是造成一些銅金礦床層控性的主要地質因素；蓋層的巖性異常為含礦熱液的滲流、循環、聚集和礦質沉澱等一系列成礦作用提供了有利的物理和化學條件；中生代巖漿巖的異常活動期也是本區主要的鐵銅成礦期，巖漿巖系統的多層分枝和分帶性結構控制了本區成礦系統的三維空間分佈.在上述分析的基礎上，構置了地質組合熵作為反映控礦地質因素組合系統結構復雜程度的綜合變量，並圈定出組合熵異常，由此確定了綜合地質異常與礦床的關系Abstract : it is essential to research radar clutter with non - gaussian spectrum and non - r ayleigh distribution in modern radar design. based on spherically invariant rando m process ( sirp ), this paper applies a new algorithm to model the clutter with k d istribution in amplitude and any power density spectrum. at last it is proved tha t thi s method is correct and applicable with real simulative clutter and statistical detection result
文摘:研究並模擬具有非瑞利幅度分佈和非高斯功率譜的雷達雜波是現代雷達信號處理中的一個重要的研究課題.文中基於球不變隨機過程（ sirp ）的建模方法，針對實地採集的幅度滿足k分佈並具有有理功率譜的高解析度雷達雜波，運用現代譜估計演算法對其進行建模和模擬，並以模擬雜波與實際雜波的數據對比和統計檢驗的結果對該方法進行了驗證This paper comprises two parts : radar clutter simulation and adaptive moving target indication. in the former part, we analyse the generation mechanism of single - channel radar correlated clutter and illuminate the simulated modeling way of rayleigh, log - norm, wei bull, k - distributed clutter with special power spetrum. all these models are used into the practical simulation of ground clutter, cloud - rain clutter and chaff jammer according to their features
在雷達雜波模擬部分分析雜波的產生尤其是單通道相關雷達雜波產生的機理，具體闡明了在指定雜波功率譜情況下，幅度服從瑞利分佈、對數正態分佈、韋伯分佈和k -分佈的雜波的建模與模擬方法，並根據不同分佈的特點，將其應用到地雜波、氣象雜波和箔條干擾的模擬中。Through the i 、 q component of ipix radar sea clutter data " s histogram analyses and by skewness and kurtosis computed, it is been shown that sea clutter amplitude is not rayleigh distribution ; through the comparison of amplitude histogram and distributed models with the same parameters, it is been shown that hh polarization clutter is lognormal distribution, whereas vv polarization is k - distribution ; at the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound k - distribution stochastic sequences whose covariance matrix is been given are been generated through sirp algorithm
文中先介紹了海雜波幅度的有關模型，通過對ipix雷達海雜波數據的i 、 q分量的直方圖以及傾斜度和峰度進行了分析和計算，證明了海雜波幅度不服從瑞利分佈;使用幅度直方圖和相同參數下的各種分佈模型進行比較，得出hh極化符合對數正態分佈，而vv極化服從k -分佈的結論;同時對海雜波的相關函數和功率譜進行了分析，最後使用sirp演算法產生了給定協方差矩陣的相關復合k -分佈隨機序列。During this process electrons will not only lose energy for self - radiation, but also gain energy from induced absorption. on the basis of analyses, the radiation with low frequency by relativistic electrons will form rayleigh - jeans spectrum in optically thick medium
由等離子體中輻射譜計算公式得到，在光學厚的介質中麥克斯韋分佈的極端相對論性電子產生的同步加速輻射譜為瑞利?金斯譜。The paper deals with the load distribution law and the development of side resistance and end resistance of single bored pile in loess under vertical load through a great number of tests in field on single pile employing some advanced equipments such as sliding micrometers. some examples are given to demonstrate the application of these laws into optimization design of piles
本文通過大量的單樁現場試驗，利用瑞士滑動測微等先進測試手段，分析和研究了黃土地基中鉆孔灌注樁單樁在豎向荷載作用下側阻力和端阻力的發揮特徵及荷載分佈規律，並用實例說明了如何利用這些規律進行工程優化設計。Abstract : the secular equations of rayleigh waves in a poroelastic half - space soil are developed by analyzing dynamic equation and continuous equation of poroelastic soil. ravleigh surface wave dispersion characteristics and its displacement as well as liquid pressure distributions in saturated half - space soil are discussed
文摘:通過對飽和土中波的運動方程及連續方程分析，推導了飽和土中瑞利波特徵方程，討論了半空間飽和土中瑞利波波速度的彌散特性，以及位移和孔壓分佈情況分享友人