random phases造句
例句與造句
- as a result, the random phase changes mentioned above occur much less frequently .
因此，上述的無規(guī)相位變化就很少出現(xiàn)。 - analysis of non-adjacent channel crosstalk level of awg device induced by random phase errors
波分復用器非相鄰通道串擾影響的分析 - among them, double random phase encoding techniques have received increasing attention at home and abroad for its high security
在這些研究中,雙隨機相位加密技術因其較高的安全性能而得到國內(nèi)外學者的廣泛關注。 - then, chapter 2 shows how to generate the stationary random excitation of the road roughness from the given spectrum amplitude of the road roughness with the random phase
基于隨機相位生成平穩(wěn)隨機路面激勵,證明了車輛變速工況下的隨機路面激勵譜為均勻調(diào)制演變功率譜。 - the formula of the new algorithm to solve random phase shift is induced in this paper in detail . the validity of this algorithm has been demonstrated by means of compute simulation
本文推導了新算法的計算公式，詳細說明了隨機相移誤差的求解過程，給出了計算機模擬實驗的結果。 - It's difficult to find random phases in a sentence. 用random phases造句挺難的
- based on analyzing the features o f low frequency phase noise of laser beam, rms of phase gradient was introduced to characterize it and the corresponding wavefront model was constructed by usin g random phase screen
在分析強激光束低頻位相噪聲特點的基礎上，采用位相均方根梯度表征激光束的低頻位相噪聲并結合隨機位相屏構建相應的畸變波前模型。 - however, the optimal results being a statistical average, the antenna pattern of random phasing is unsteady with the scanning angle and scanning period, so it is not easy to form the actually needed codes for control of the antenna scanning
應用遺傳算法對隨機饋相方案進行優(yōu)化，能有效抑制寄生副瓣的出現(xiàn)，形成掃描空域確定的波控代碼，實現(xiàn)相控陣波束無慣性的精確指向。 - in order to encode the parameters of sinusoidal model, the vector quantization techniques for amplitude parameters and the differential quantization for frequency parameters are proposed and discussed . at the same time, the frequency bin model, the random phase model and the zero phase model are also discussed
針對正弦模型參數(shù)的量化編碼，提出了幅度參數(shù)矢量量化、頻率參數(shù)差分量化等方法，并探討了頻率盒量化模型以及隨機相位和零相位模型等。 - 5 . encrypted opticalstorage with wavelength-key and random phase codes . this paragraph presents a novel encrypted holographic storage system in combination of wavelength based on double phase codes . lt is not only inquired into in theory in detail, but also proved to be validate by computer simulation
本節(jié)介紹了在雙隨機相位編碼加密光存儲方法基礎上結合波長加密的一種新的雙重加密光存儲系統(tǒng)，不僅在理論上給予了詳細的推導，而且通過模擬證明了該方法的可行性。 - two illustrative examples, a duffing oscillator subject to a harmonic parametric control and a driven murali-lakshmanan-chua ( mlc ) circuit imposed with a weak harmonic control, are presented here to show that the random phase plays a decisive role for control function . the method for computing the top lyapunov exponent is based on khasminskii's formulation for linearized systems . then, the obtained results are further verified by the poincare map analysis on dynamical behavior of the system, such as stability, bifurcation and chaos
通過兩個實例，即一類參激激勵作用下的duffing系統(tǒng)和一類murali-lakshmanan-chua(mlc)電路，考察隨機相位在非反饋混沌控制中的影響與作用，利用最大lyapunov指數(shù)和poincare截面分析法證實了隨機相位確實可以用來調(diào)節(jié)系統(tǒng)的混沌行為，即一個小的隨機相位的擾動可能導致系統(tǒng)從有序轉(zhuǎn)變?yōu)闊o序，也可能使得系統(tǒng)從無序轉(zhuǎn)變?yōu)橛行颉?/li> - this method assumes that each inteferogram has an identical phase shift that can be found out by least-suqares fitting . this algorithm determines any errors of phase shifts deviating from their i ntended values and also suppresses the errors by substituting actual values in subsequent computation . the algorithm can solve the problem of random phase-shifting very accurately, but the algorithm needs a great of iteration number and considerable calculation
in-bokkong等人從同一干涉圖中諸象素相移量相等這一認識出發(fā)，提出求解各干涉圖的相移量的方法，in-bokkong的算法是通過交替求解相位分布和相移量來進行的一種迭代算法，這種方法可以解決隨機相移誤差問題，且有很高的精度，但迭代次數(shù)較多，計算量較大。 - abstract : in this paper, a variety of encryption methods for optical image security are comparatively studied . according to the different method, the encrypted image can be transformed into white or color noise . the encryption phase can be the random phase or the chaotic sequence as well as the calculated result by used of the phase retrieval algorithm . the image quality and the correlative recognition ability of decrypted image are affected by the different part of the decryption phase and the amount of high frequency or low frequency used in the process of decryption
文摘:本文分析比較了多種實現(xiàn)光學圖象相位加密的方法，發(fā)現(xiàn)不同方法獲得的加密圖象有不同類型的噪音分布.無論加密相位是隨機相位模板、渾沌序列的相位列陣，還是用相位重構迭代算法計算的結果，它們都能起到加密圖象的功能.解密圖象的質(zhì)量或被相關識別的能力與解密過程中所使用正確解密相位的不同部分以及高低頻分量多少有關，且其依賴程度是由不同的加密方法自身決定 - abstract : the far-field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot . by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經(jīng)隨機位相板變換后在遠場的光斑特性(包括光斑的形狀、大小、旋轉(zhuǎn)對稱性、衍射效率以及旁瓣分布)，通過比較三種形狀位相元(等邊三角形、正方形和正六邊形)的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合于激光聚變中的束勻化。 - abstract : the far-field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot . by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經(jīng)隨機位相板變換后在遠場的光斑特性(包括光斑的形狀、大小、旋轉(zhuǎn)對稱性、衍射效率以及旁瓣分布)，通過比較三種形狀位相元(等邊三角形、正方形和正六邊形)的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合于激光聚變中的束勻化。
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