波高計 的英文怎麼說
中文拼音 [bōgāojì]
波高計
英文
wave gauge-
Rotating - beam ceilometer
旋轉波束雲高計The physical models for those sound synthesis methods can exactly describe musical instruments ' s fundamental and harmonious and inharmonious frequencyies, as well as their nautral sounding process. they can be played like real musical instruments, representing players ' s strength, velocity and pattern, as well as emotion. so, the methods are playing very important roles within the sound synthesis domain currently, with mpeg4 published and improvement of computer ' s computational efficiency
由於它可以精確地描述物體的發聲及其發聲過程,精確地再現樂器的基波、高次諧波、非諧波以及asdr過程,象真實樂器一樣可以表達演奏者的演奏力度、速度、風格和情感,隨著計算機處理速度的提高,尤其是mpeg4技術的公布,這種方法日趨活躍,成為目前樂器模擬、聲音合成的研究熱點。The research indicates that the random sectionalized linearization methodology introduced by the author is more simple and efficient than stochastic equivalent linearization method, so it is convenient for generalizing
研究表明,作者提出的隨機分段線性濾波器較等效線性濾波器計算程序簡單得多,便於推廣應用、而且效率高。By sheer coincidence, a trio of earth - monitoring satellites gave modelers the pristine, undistorted wave heights they needed for the indian ocean tsunami
十分巧合的是,有一組地球觀測衛星提供了最原始且如實的海嘯波高值,這是模型設計師模擬印度洋海嘯時不可或缺的。This dissertation depicts how to design an instrument to measure wave height of ocean wave based on the principle of ultrasonic detection
本文敘述的是如何根據超聲測距原理來設計測量海浪波高儀器。We have developed a high precision wavemeter with an accuracy of 2 10 ^ ( - 8 ) in measuring vacuum wavelength, and a frequency measurement instrument by femtosecond modelocked laser with an accuracy of commercial cs standard
為了適應研究工作的需要,研製了高精度激光波長計,測量真空波長的準確度可達2 10 ^ ( - 8 )的量級,同時研製了飛秒鎖模激光的測頻裝置,目前的測量精度可與小銫鐘的精度相同。Based on data collected from east china sea, the waves are calculated and analysed statistically, therefore as obtained the relation between wave height and significant period as well as average period
摘要根據實測數據對我國主要漁區(東、黃海)的波浪進行了統計分析,得出適用於該海區的有效波高與有效周期及有效波高與平均周期的統計關系式。Through the physical model experiment, the wave forces over submerged dyke and transmission coefficient are analyzed under the action of regular wave. in the test of wave forces, the rectangle - type submerged dyke is used as research object, and when analyzing the total wave forces, the effect of water depth before the dyke and that of the wave parameters is considered. based on the test, through the methods of multi - element linear regression, experimental formulae are given to calculate maximum total wave forces in horizontal direction, its relative vertical wave forces and maximum wave forces before and after the dyke, which are compared with the present formulae
在潛堤波力的研究中,選取矩型潛堤作為研究對象,在分析各個影響因素對潛堤波力影響的基礎上,選取兩個最主要的影響因素,即相對波高和相對水深作為研究重點,在物理模型試驗結果的基礎上,定性地研究分析了潛堤所受的總波力隨相對波高和相對水深的變化規律,並在此基礎上,利用多元線性回歸的方法,分別給出了在本文試驗條件下計算潛堤最大水平總波力及其相對應的垂向總波力的經驗公式以及計算堤前堤后最大總波力的經驗公式,並與已存在的計算公式進行了對比。The localization of mobile object is accomplished by nonlinear kalman filter. based on the formulae of localization errors, the rules are analyzed, which describe the relationship between the localization precision and the constellation factors, such as constellation shape, the height of satellite. the method to design the constellation is presented with the help of these rules
論文利用非線性kalman濾波設計了三星時差定位星座對運動目標的定位定速演算法;根據定位誤差的解析公式,利用模擬方法分析了三星時差定位星座的星座構型和衛星高度等因素對定位精度的影響規律,並依據定位精度影響規律,研究了三星時差定位星座的星座設計問題。In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples
第二章在聲波動理論基礎上,詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式;根據fredholm積分理論,對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明;改進了chief法以提高其克服解的非唯一性的有效性和可靠性;對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究;開發了三次樣條改進chief法計算軟體,並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。For the problems arising from the absence of exact dynamics models, the gauss - markov process is used to approximate the un - model acceleration term in the circling orbit dynamics
利用高斯-馬爾科夫過程近似繞月探測器的無模型加速度,並利用基於unscented卡爾曼濾波估計了探測器的位置、速度及無模型加速度。The extrapolation was used in this method for improving efficiency and accuracy, and the quasi shannon interval wavelet collocation method was constructed based on the concept of interpolation wavelet transform. this method can handle the problems of complex boundary conditions and improve computation accuracy greatly
在此基礎上,根據區間插值小波的概念,構造了擬shannon區間小波配置法,數值算例表明該方法不但可以消除邊界效應,而且可大幅度提高計算精度。In this thesis, a multicarrier modulation high bit - rate underwater acoustic communication system was designed and constructed after analyzing those effects
本論文在分析這些因素的影響之後,設計並製作完成了一個多載波高速水聲通信系統。In this thesis, the characteristics of underwater acoustic channel were analyzed, the mcm technique and the lfm signal which were used in the multicarrier modulation high bit - rate underwater acoustic communication system was discussed in detail, the important parts in system designing were examined
論文對水聲通道特性進行了分析,就多載波高速水聲通信系統中用到的多載波調制技術、線性調頻信號進行了詳細論述,論述了系統設計中的重要環節。At first, the generating mechanisms of four kinds of wake features are studied in the thesis. we have simulated the features of ocean surface waves, kelvin wake, narrow v wake, turbulent wake, vortex wake, and internal wake. the kinetic equation of kelvin wake have been analyzed and improved, which can be used to calculate the kelvin wake of a submerged moving body
論文首先研究了四種常見尾跡特徵的產生機理,模擬得到了海面、 kelvin尾跡、窄v尾跡、湍流和渦流尾跡以及內波尾跡特徵;改進了kelvin尾跡的動力學模型,使之能夠計算運動物體下潛后的kelvin尾跡波高分佈。On the basis of this analysis the radiation and diffraction forces of the ship are calculated using these three methods and compared. at the same time vertical ship motions in regular wave are solved by these three methods. the results are compared to test each method ' s availability and suitability, thus the theoretical basis of optimize design of sea - keeping performance is provided
分別介紹了二維切片法、高速細長體理論和三維理論的基本原理,分析了三種不同方法各自的適用性,在此基礎上分別計算了船舶的輻射力和繞射力,比較了這三種方法的計算結果,為不同營運目的的船舶耐波性計算提供陜速有效而實用的計算方法;同時應用三種方法計算了船舶在規則波中的垂向穩態運動響應,比較三種方法的計算結果,測試各種方法的有效性和適用性,為船舶耐波性的優化設計提供原始的理論基礎; 2To detect target signal with strong sea clutter, to increase the clutter visibility of sea radar and enable higher resolution and reliable monitoring performance of sea radar, three kinds of key clutter modeling technology for sea radar are studied in detail, which are clutter scattering mechanism modeling, clutter statistics modeling and clutter nonlinear modeling on basis of elaborating sea clutter characteristics
摘要為了能在強烈的海雜波背景下檢測到目標信號,從而提高海面雷達的雜波可見度,使海面雷達具有更高的解析度和可靠的監測性能,在精確的描述海雜波特性的基礎上,詳細研究了雜波散射機理建模、雜波統計建模和雜波非線性建模3種海面雷達雜波建模關鍵技術。The investigation in this dissertation shows the capabilities of ausm + scheme, such as the exact resolution of shock, low numerical dissipation, simple and requiring less computational effort. the successful applications on supercritical airfoils and wings show that the present flow solvers based on ausm + scheme are of valuable and promising in practical application
通過本文的研究工作,展示了ausm +格式的激波高解析度、數值耗散小、編程簡潔、計算量較小等特性,同時,將其成功地應用於跨音速超臨界翼型、機翼的定常或非定常氣動特性的數值模擬和顫振研究中,具有一定的工程應用價值和良好的發展前景。( 2 ) a continuous measurement method based on brightness temperature is proposed by processing the measured data of the multiwavelength pyrometer at two different times, the true temperatures and spectral emissivities at two different times can be calculated simultaneously. the experimental results show that this method improves the measurement precision of true temperature and spectral emissivity
( 2 )提出了基於亮度溫度模型的連續測量法,通過處理多波長溫度計兩個不同溫度處的測量數據,可以同時求得兩個不同溫度處被測目標的真溫及光譜發射率,試驗表明:該方法可以提高計算精度。Rotating - beam cloud height meter
旋轉波整束雲高計分享友人