隨機序列 的英文怎麼說
中文拼音 [suíjīxùliè]
隨機序列
英文
random sequence-
This paper reviews the history of research of long - range dependence and self - similarity in data network traffic, introduces the related concepts and discusses the physical interpretation of long - range dependence and self - similarity along with fractional brownian motion. finally, a method for generating fractional brownian motion random series is analyzed
本文將介紹長程依賴和自相似在計算機網路研究中的歷史狀況，相關數學概念，給出了基於分數布朗運動的計算機網路業務流呈現長程依賴和自相似屬性的數學和物理解釋，討論分析分數布朗運動隨機序列生成方法。In this paper, two questions on exetreme value theory are investigated as follows : i. the asymptotic properties of the large quantile and endpoint of a distribution : let { xi } be an i. i. d random sequence with common distribution f ( x ) which is unknown. denote mn ( k ) as the k - th maxima of x1 … xn
本文對極值理論的兩個問題進行了探討：一、大分位數與尾端點的漸近性質設{ x _ i }是來自未知分佈f （ x ）的i . i . d的隨機序列。Properties for the birth - death process s just hitting time interval sequence in a random environment
隨機環境中生滅過程首擊間隔隨機序列的性質The method generates a random sequence to identify the original recipient of the document by user register. then it uses the crc error coding technique to form a watermark sequence
即通過用戶信息注冊，產生與文本對應的一個偽隨機序列號，加入crc糾錯碼后，形成水印序列。If the visual effect is the same, this scale will not be changed because it is a whole characteristic
檢測浮水印時先進行同步操作，再對偽隨機序列解擴進而得到浮水印存在與否的一種可信度結果。A class of strong limit theorems for arbitrary stochastic sequence in random selection system
任意隨機序列關于隨機選擇系統的一類強極限定理In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為，色度dc系數是魯棒性非常好的參數，因而選擇色度dc系數作為水印信息載體，同時，採用可變的步長選擇部分系數，保證了水印的隱形性；在嵌入水印時，本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案，由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中，即使某一圖組收到一定破壞，也能夠恢復水印信息，使水印的健壯性得到提高；此外，為了提高水印信息的安全性，在嵌入水印信息時，根據用戶輸入的id號和密碼，利用本文構造的混沌系統產生的混沌序列對水印信息進行變換，同時，對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整，這樣，未授權用戶不能提取水印信息，也難以擦除其中的水印信息，因為嵌入的位置是未知的。A strong limit theorem on random selection for independent identical distribution random variables
獨立同分佈隨機序列隨機選擇的強極限定理的證明Narrowband watermarking information is spread into wideband pseudo - random code before being embedded by modifying the scale of the distance between vertexes in two - dimensional engineering graphics
該方案先將待嵌入的窄頻帶的浮水印信號擴頻為寬頻帶的偽隨機序列，然後再以偽隨機序列為依據對二維工程圖中直線實體的長度作相應的修改。By making use of the characteristics of pseudorandom spread spectrum sequence in time - domain, this thesis has studied the time - domain correlation detection method of the dsss / bpsk signal and proposed the time - domain difference - accumulation detection method of the dsss / bpsk signal
利用擴頻偽隨機序列在時域上的特點，本文研究了dsss / bpsk信號的時域相關檢測方法，並提出了dsss / bpsk信號的時域累差檢測方法。Statistical analysis of the orthogonality between images and pseudo - random sequences
基於統計數學的偽隨機序列與圖像正交性分析Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice
接著，分三今方向對markowitz模型進行了拓展研究：第一個方向是運用markowitz模型時如何減少計算量，本文利用無風險資產來改進markowitz模型的有效邊界，利用單因子或多因子模型來減少收益率協方差的計算量等等；第二個方向是增加考慮因素，諸如交易費用、資金限制、最小交易單位限制，風險測度和國際組合證券的匯率風險，使markowitz模型更貼近我國的實際；第三個方向是對markowitz模型進行動態拓展研究，提出了將證券收益率看成是隨機序列時的投資決策模型，深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移，並用解析方法和幾何圖形描述了漂移的軌跡和方向。After that, a new method based on the noise to generate a random number sequence is put forward
然後，提出了利用小波（包）進行信號分解的方式產生隨機序列。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。Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest. the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function. and the mismatch - phase sequence is corresponding with the frequency sequence one by one
而頻率編碼為不均勻分佈，由所觀測目標的頻譜信息提取出概率密度函數決定頻率編碼序列的分佈；相位編碼為二元的偽隨機序列，採取均勻的二相編碼，消減同頻脈沖帶來的過高的相關函數的旁瓣；而失配相位為與頻率編碼相一一對應于各子脈沖中。Evaluation for uniformity of pseudo - random sequences
偽隨機序列的均勻性評價On some strong laws of large numbers
關于隨機序列的若干強大數定律Investigation and realigation of pseudo - random sequence generator
偽隨機序列發生器的研究與實現On almost sure max - limit theorems for the independent random variables
獨立隨機序列最大值的幾乎處處極限定理Some strong limit theorems of random sequence based on exponential distribution
隨機序列基於指數分佈的若干強極限定理分享友人