cosine distribution 中文意思是什麼
cosine distribution
解釋
餘弦曲線分佈- cosine : n. 【數學】餘弦。
- distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
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On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained
推導了最佳陣元分佈方程，分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析，推導了天線方向圖旁瓣包絡、波束寬度，干凈掃描區寬度的估計公式，給出了近軸旁瓣電平與陣列參數的關系。 -
Fractional fourier transform of two - dimensional cosine - gaussian beams based on the wigner distribution function
二維餘弦高斯光束基於魏格納分佈函數的分數傅里葉變換 -
Taking beam with rectangular section as an example, the corresponding analytical solution of beam subjected to cosine distribution pressure is given through constructing the stress function satisfying all boundary conditions and biharmonic equation, which is a base of beam subjected to arbitrary distribution pressure
摘要以矩形截面簡支梁為例，通過構造一個滿足所有邊界條件和雙調和方程的應力函數，給出了梁受餘弦分佈力作用情況下相應的解析解，這為求解梁受任意分佈壓力作用下解的問題打下了基礎。 -
Quasi - distribution cosine functions
擬分佈餘弦函數 -
By applying generalized gaussian distribution to statistically model the alternating current coefficient of discrete cosine transform, the technology of the blind image watermark is studied and the performance of the new detector is analyzed
摘要根據數字圖像離散餘弦變換域交流系數的廣義高斯分佈模型，對盲圖像水印技術進行研究，並給出了水印檢測器檢測性能的理論分析結果。 -
Applying generalized gaussian distribution to statistical model of the alternating current coefficient of discrete cosine transform, an adaptive blind watermark detection algorithm is presented on the basis of sign detector and linear correlate detector and its probability efficiency is deduced
摘要根據數字圖像離散餘弦變換域交流系數的廣義高斯分佈模型，在符號檢測器和線性相關檢測器的基礎上，提出一種盲水印自調節的檢測演算法，並推導出該檢測器有較高的檢測效率。 -
According to the nyquist first criterion, the usual way is to use raising cosine shaping filter in real communication system. by choosing appropriate rolling off factor and determining the distribution of its characteristics between the transmitter and the receiver, the shaping, filter will minimize the nonlinear distortion, of channel
根據奈奎斯特第一準則，在實際的通信系統中，通常的途徑是採用升餘弦滾降成形濾波器，選擇適當的滾降系數，並確定其特性在收、發兩端的分配問題，以便將通道非線性的影響最小化。
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