衰減因子 的英文怎麼說
中文拼音 [shuāijiǎnyīnzi]
衰減因子
英文
attenuation factor-
Dilution of precision dop
精度衰減因子Finally, convergent geometry had an important effect on the perturbance coupling between the interfaces of the finite fluid. the attenuation factor of perturbance coupling from the outer interface in was greater than the one from the inner out
本文研究表明：收縮幾何效應對有限厚度流體的界面之間的擾動耦合有重要影響，柱和球幾何中擾動耦合從外界面到內界面的衰減因子大於從內界面到外界面的情況。According to the minimum detectable power required by the spaceborne laser altimeter for 200km maximum range and the analysis result of the effect between the maximum range and the equation ' s each parameter, the specifications for noncooperative regulable attenuation setting were fixed on
根據月球探測激光高度計實現200km所需的最小可探測功率，各影響因子與最大測程關系的分析，確定非合作目標可調衰減法裝置的技術指標。So in fact, if they senesce just a tiny tiny bit over time - - that is, if their half - life gets shorter, very very slowly - - we wouldn ' t actually be able to tell that this was happening in the time that we took our measurements, because the acceleration in the rate of atoms decaying ( relative, of course, to the number that had not decayed already, which is always decreasing ) would be too tiny to be statistically detectable
所以在事實上，如果它們隨時間衰老得只那麼一點點， ?就是說，如果它們的半衰期縮短得非常慢?那麼我們實際上不可能知道，在我們測量期間發生過衰減，因為原子衰減的速率加速得太小，統計學上檢測不出（當然，是相對于不曾衰減的數目而言，不曾衰減的原子數目總是在減少） 。Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。Even with the attenuation factor blending into our lighting equation, still, the maximum amount of light a surface receives is ( n. l )
雖然我們已在光照方程式中加入了混合衰減因子，但是還需要表面的最大值光照數量。Gdop - geometric dilution of precision
幾何精度衰減因子Vdop - vertical dilution of precision
高程精度衰減因子Pdop - position dilution of precision
位置精度衰減因子Computation of the noise attenuation factor in optimal associative mappings
最優聯想映射噪聲衰減因子的計算Tdop - time dilution of precision
時間精度衰減因子Dilution of precision
精度衰減因子The compensator was h ( s ) = 2370s. the results of simulation showed that attenuation factor of the first order of the third control system was as much as ten times of the value of the system without controller
通過模擬表明，採用速率傳感器，在前三塊帆板上布置壓電驅動器時，一階最大衰減因子為無控時的10倍，可以使脈沖衰減時間縮短15倍。Then the behavior of the free joint when we bring the periodic perturbation through controlling the actuated joint is analysed, we can find in the result that the behavior of the free joint in the phase plane follows an ordered closed trajectory with the center equilibrium point + 2 in the case where the amplitude of the input is small, we can define a weakening factor to make the position of the free joint reach the center equilibrium point + 2
通過相平面分析的方法分析了當驅動臂施加周期擾動對非驅動臂運動的影響，其結論為通過調整驅動臂周期擾動的幅度及極性，可以使非驅動臂沿著圍繞平衡點2的極限環軌跡運動。在此基礎上，提出衰減因子的概念，通過衰減因子調整驅動臂擾動的幅度和周期，使非驅動臂能夠穩定在平衡點2 。The platform implements the signal processing dataflow of range - doppler algorithm such as range compression, clutter lock, azimuth preprocessing and azimuth processing. this paper derives that multiplying 1 / 2 factor can avoid fixed - point overflow
該平臺能完成r - d演算法中的距離向脈沖壓縮、雜波鎖定、方位向預處理及方位處理功能本文針對定點分裂基fft演算法，推導出加入1 2衰減因子可以避免定點運算時產生的溢出。With these three calculated parameters, the attenuation factor value of the radio wave propagation in the earth ' s crust is calculated by the ways of plane wave method and communication formula method, and the value of the leakage on the ground is also calculated by the inhomogeneous medium ' s field analysis method
據此三種參數，利用平面波法和通信公式法計算出電波在地殼中傳播的衰減因子值，以及利用非均勻介質的場分析法計算出地面場強泄露衰減因子值。The optimum decoding algorithm - map algorithm and its improved algorithm in logarithm domain used in turbo codes were derived, combining them with the stop criteria of iteration hi realization of decoding, an improved algorithm using fading factor was introduced
推導了turbo碼的最優譯碼演算法? ? map演算法及其在對數域中的相關改進演算法，並結合譯碼實現的迭代停止準則，提出了一種應用了衰減因子的改進譯碼演算法。The thesis mainly deals with the third part of across : " sompi " cepstrum methods. the principle and system structure of across a re first introduced. the propagation of wave in media is simply studied and its transfer function in frequency domain is modeled as superimposed damped exponential sinusoids, each damped exponential sinusoid is called as a wave element and its exponential index part consists of two factors : group velocity travel time and decayed factor
為此，首先介紹了across的原理與組成和通過簡單地討論地震波在介質中的傳播情況建立起介質的傳遞函數模型，指出：在一個狹窄的頻率窗口裡，介質的傳遞函數可以用有限個阻尼正弦項的疊加的形式表示，每個阻尼正弦項代表一個波成分，其指數部分包括兩個因子：波成分在介質中的傳播時間和衰減因子。The accurately controlled signal source generates sinusoidal elastic wave accurately controlled in frequency and stable in phase to " illustrate " underground media. time signal stacker receive signal by stacking and doing fft to measure the transfer function of media. " sompi " cepstrum method retrieve group velocity travel times and decayed factors of wave element from observational data of transfer function in a limited frequency window
精密可控震源用於產生頻率精確相位穩定的正弦彈性波以照射地層內部，信號疊加器通過對接收信號進行疊加和進行傅立葉變換的方式實現對介質傳遞函數的精密測量， 「存否」倒譜方法能夠根據一段窄帶頻域傳遞函數數據獲得時域上各個波成分的群速度傳播時間和介質衰減因子。On the ground of mpda algorithm and the conclusion of its steady - state performance evaluation, the choice of the detection threshold becomes a matter of optimization under the condition of properly chosen detection model and hypothesis. and the analytic expression of auto - adjusted detection threshold can be deduced via approximate fitting attenuation factor derived from the conclusion of performance estimation. it presents a novel approach for the optimization of detection - tracking system
基於mpda演算法及其穩態性能估計的結論，在適當選擇檢測模型和一定假設條件下，將自適應檢測門限的選擇歸結為一個最優化問題，通過近似擬合性能估計結論中的衰減因子，得到了最佳檢測門限自適應調整的解析表達式，為檢測?跟蹤系統的聯合優化設計提供了一種新思路。分享友人