波數計 的英文怎麼說

中文拼音 [bōshǔjì]
波數計 英文
ondometer
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  1. In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis

    論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。
  2. In this paper, the design of a practical sort of high performance biquadrates elliptic active band - pass filters is emphasized, and then the design techniques and how to calculate the resistors and capacitances, how to make computer simulation and tolerance analysis with computer are described in detail

    摘要本文我們重點介紹了一種實用的雙二次型高性能橢圓函數有源帶通濾波器的設計方法，詳細介紹了該濾波器的設計步驟及阻容元件的參數計算，並對設計出的電路用計算機進行模擬模擬和容差分析。
  3. As an example, the oscillation of a rectangular harbour due to the incident waves with different directions and wave numbers was investigated

    作為算例，就一矩形港灣在不同方向、不同波數入射波情況下的港內水波振動問題進行了計算分析。
  4. Calculation of thickness wave drag coefficient for hypervelocity sweepback space debris

    超高速后掠飛片的厚度波阻系數計算
  5. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  6. For the purpose of ensuring the quality of our products, our company has invested 4 million rmb in building multi - purpose lab, and introducing almighty experiment machine, impulsion testing machine, ultrasonic digital thickness - testing device, full - automatic ultrasonic thickness - testing device, sclerometer, ultrasonic flaw detector, x - ray machine, magnetic particle flaw detector and other advanced quality inspecting devices

    為了確保產品的質量，公司投資400多萬元建起了多功能實驗室，配備了機械式萬能試驗機沖擊試驗機超聲波數字測厚儀全自動超聲測厚儀里氏硬度計超聲波探傷儀x射線機磁粉探傷儀等先進的質量檢測設備。
  7. The distributing design reduce effectively spending of cpu. through following experiments in practice, the outcome indicate that this nav system can accomplish the reckoning on data information of vehicle and has the supernal precision

    這樣有效的減少主處理器的開銷，集中進行卡爾曼濾波數據融合運算。測試結果表明該設計能夠實時完成對車輛的實時經緯度的測算，具有較高的精度。
  8. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  9. Millions of people saw apollo 10 being counted down, on television

    許許多多的人在電視上看到宇宙火箭「阿波羅」 10號發射時倒數計時的情景。
  10. Present a modified particle filter ( pf ) algorithm based on the los / nlos binary state information of propagation environment using the numerical method of the probability density function ( pdf ) about the hybrid noise. the key idea is using numerical method to calculate the hybrid noise pdf, and integrating binary environment information to get filtering result

    2 .給出了應用粒子濾波器改進直達波與非直達波混合環境中移動終端跟蹤性能的新演算法，特色是利用數值方法計算混合噪聲密度函數，結合二元環境信息完成濾波估計。
  11. Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered

    文摘:根據縫隙口面切向場的連續條件，採用解析數值法矩量法，對扇面波導寬壁上窄的斜縫進行了計算，解得了磁流系數及其分佈，並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸，在x波段計算了散射參量和歸一化等效串聯阻抗，給出計算結果，為縫隙天線和縫隙陣列設計提供了依據
  12. Firstly, the airborne electromechanical system, the development of bus protocol, power line channel and power system are described in the dissertation ; secondly, the algorithm of qpsk and root raised cosin are discussed ; thirdly, the designation of the hardware and software of the modem board, based on qpsk, built up with dsp and cpld are given. the high - speed data transporting card of airborne electromechanical communication system, which is based on plc, are put forward in our country

    本文介紹了飛機電力線載波數據通信系統的結構，並對低壓電力線的通道特性進行了分析；對qpsk調制演算法及均方根升餘弦低通濾波演算法進行了詳細論證；設計出基於qpsk的調制解調模塊，並在此基礎上，研製出以dsp和cpld為最小系統的調制解調硬體電路板，開發了調制解調模塊電路板的應用軟體程序。
  13. The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )

    軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。
  14. This project based on the research of pd radar simulator, give the mathematic model of the ground clutter and target, generate the data of them. then the data has been translated to the memory of the simulator by a pci card

    本課題以某機載相控陣雷達模擬器的研製為背景，對雷達雜波和目標回波進行數學建模，產生相應的目標數據和雜波數據，並通過計算機pci總線，將生成的數據文件加載到雷達模擬器的存儲器中。
  15. So, optimization of breakwater planning is of great practical value and should be resolved immediately. at first, the paper narrates the development of numerical modeling, which includes shallow water dynamics theory and method, and compares the boussinesq model and mild - slope equation model. the purpose is to select one model that best fit for wave calculation in harbor engineering

    本文首先綜述了波浪數值模擬的發展概況，其中包括淺水動力學的常用理論和方法，並詳細比較了目前使用較多的boussinesq模型和緩坡方程模型，其目的是選擇其中較為適合港區工程波浪計算的模式，並將其作為優化模型的驗證或用於適應度計算。
  16. Point in the number of times of a repetition in period, or each of cycle number. calculate the unit to hz hertz, such as the frequency is 1000 hzs 1 khz signal 1000 every second then contain the cycle of the sine wave

    指在一個周期內的重復次數，或每秒的周波數。計量單位為hz hertz ，如頻率為1000hz 1khz的音頻信號每秒便有1000個正弦波的周波。
  17. The fourth chapter " reseach on fractai structure of stock price " anaiyzed the fractai structure of stock price, deduced the investment function, caiculated the hurst exponent, 3 correlation dimension, and max lyaponov exponent, analyzed the self - similarity, long range dependence, circulation period of stock price and sensitivity of stock price to the initial value, suggested took the exponent characterize fractal instead of variance as instrument to measure risk

    第四章分析並檢驗了股票市場的分形混沌特徵，推導了投資函數，計算了表徵股票市場分形特徵的hurst指數，關聯維和最大lyapunov指數，分析了股票價格的自相似性、長期記憶和循環周期，分析了股票價格的波動對初始條件的敏感性，提出中國股票市場具有混沌分形的特性，用傳統的方差法度量股票風險是無效的，必須使用混沌分析能夠理論來刻畫股票收益的風險，建立收益模型。
  18. The basic technologic scheme on microwave transmission, currently maturate and advanced microwave transfer technology and equipment, efficiency slot gap antenna, character quality filter, mixer, exact crystalloid concussion apparatus, power backspacing technology, pre - distortion adjustment. furthermore, the technologic schemes practicing using multilevel microwave transfer technology in some areas such as lengshuijiang is introduced in the paper

    採用了當前比較成熟、先進的微波傳輸技術和設備，如高效的縫隙天線、高品質濾波器、混合器、高精密的晶體震蕩器、功率回退技術、預失真校正技術，結合工程實際，設計了湖南電廣網路33家合資公司的mmds無線微波數字電視覆蓋的基本技術方案，和個別地區（冷水江市數字微波工程）的多級微波傳輸的具體技術方案。
  19. As follow : 1. two solutions of estimating the doppler centroid are put forward. we processe the doppler centroid estimation in the frequency domain and time domain. also this chapter discusses principle of the doppler centroid estimation

    本文主要研究了多普勒參數估計及波數域演算法，主要有以下幾個方面: 1 .闡述了多普勒質心估計的兩種方法:頻域估計法和時域估計法。
  20. Several problems must pay attention in the application of digital oscilloscope measurement and calibration

    數字示波器計量校準與應用中須注意的若干問題
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