階乘積 的英文怎麼說
中文拼音 [jiēchéngjī]
階乘積
英文
factorail-
It is shown that the horizontal and vertical factorial moments are equivalent only when they are used in combination with the cumulant variables
發現：在一般情況下，只有在引入累積變量后，縱向階乘矩才與橫向階乘矩相等。Therefore, in the study nonlinear phenomena in high energy collisions the hfm can be used only in combination with the cumulant variables
因此，在高能碰撞非線性現象（間歇和分形）的研究中，只有採用了累積變量時，才能使用橫向階乘矩進行計算。In the aspect of blind - identification, the mutual power spectrumx time - frequency distribution product of two delay signals are used as the features of classification. the cluster analysis and cumulant invariants of mpsk signals are used to automatically classify communication signals
在信號識別中，選取信號的互功率譜、時頻分佈、 mpsk信號的延遲相乘信號作為分類特徵，利用模式識別中的聚類分析以及mpsk信號的基於高階累積量構成的分類特徵不變量實現了信號調制類型的自動分類。As a result of the require of cagd in airplane, automobile shipping and electrical appliance etc, fairing of curves and surfaces has become the hot subject in all over the world. this paper presents a new method for fairing of curves based on fitting the derivative of second order of curves. several practicality examples has been given to show the advantage of this arithmetic
本文針對目前曲線光順演算法存在的問題，提出了一種採用最小二乘法來擬合曲線型值點列的二階導數曲線，然後通過兩次積分來反求光順曲線思想的曲線光順演算法，並給出了實際的算例來說明本文演算法的優越性。For the issue of blind parameter estimation of dsss / bpsk signal damaged by strong additive white gaussian noise ( awgn ), this dissertation mainly researches on carrier doubler method ( cdm ), auto - correlation method ( acm ), delay - and - multiply ( dm ) method and fourth - order cumulant 2 - d slice method
針對受強高斯噪聲污染的dsss / bpsk信號對抗技術中的盲參數估計問題，本文著重研究了平方倍頻法、時域自相關法、延遲相乘法三種常規的單參數估計法以及四階累積量2 - d切片多參數估計法。Abstract : this paper discusses the conditional problem of the higher order derivatives depending on more than one function, sovles conditional problem of variation of definite integral constraint by using lagrange ' s method of multipliers, and studies the conditional problem of variation of more than one definite integral constrains
文摘:討論依賴于多個函數的高階導函數的泛函的變分問題，並且利用拉格朗日乘子法討論此類泛函的一種書有定積分約束的條件變分問題的解法.最後討論有多個定積分約束的條件變分問題This paper discusses the conditional problem of the higher order derivatives depending on more than one function, sovles conditional problem of variation of definite integral constraint by using lagranges method of multipliers, and studies the conditional problem of variation of more than one definite integral constrains
討論依賴于多個函數的高階導函數的泛函的變分問題，並且利用拉格朗日乘子法討論此類泛函的一種書有定積分約束的條件變分問題的解法.最後討論有多個定積分約束的條件變分問題So we adopt an radial basic function neural network and a three - order volterra series filter to construct two prediction model which are used to predict the eeg signal. in this paper, we improve the radial basic function neural network and breach the two - order limited by using product - coupling to realize the three - order volterra series filter. wavelet transform is an analytical method that unites the time and frequency domain
因此，本文採用徑向基函數神經網路和三階volterra級數濾波器分別構造腦電信號的兩個預測模型；對通常的徑向基函數預測網路作了改進，並且採用乘積耦合近似實現三階volterra級數濾波器，突破了常規上只能用二階volterra級數濾波器的限制。分享友人