衰減精度 的英文怎麼說
中文拼音 [shuāijiǎnjīngdù]
衰減精度
英文
attenuation accuracy- 衰 : 衰動詞(衰弱) decline; wane
- 精 : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
- 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
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Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性:在深度方向上衰減較慢,傳播較深,波動性大.提出了在道路結構動力響應計算中,利用面波來模擬水平向傳播波,利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性,並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性Dilution of precision dop
精度衰減因子The analysis of data and uncertainty of the test upon different simulant target properties and atmospheric condition has proved that noncooperative regulable attenuation method and setting described in the paper can achieve a quantitative output
不同目標特性、不同大氣條件下的地面性能驗證實驗數據和精度理論分析結果均表明,非合作目標可調衰減法可以實現對激光高度計最大測程的定量化驗證。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。In the paper, prescale technology, interpolate method, averaging method and multiple period synchronization method are used to measure the frequency accurately. diode demodulating technology, and power attenuated method or probe coupling & water load technology are employed to measure the power of high power microwave. isothermal technology is used to improve the stability of demodulator and to expend the range of square linear region
本文採用預分頻法、內插法、多周期同步法、平均法實現了頻率的精確測量;利用二極體檢波技術,結合衰減法或探針耦合+水負載技術實現了大功率微波功率的測量;採用恆溫技術提高了二極體檢波器穩定度;完成了單片機串口通信協議設計和系統電磁兼容的分析和設計。Electro - optical curves for lc cells have been analyzed and it has been shown mat a large attenuation range and a shallow attenuation slope can be achieved simultaneously for a variable optical attenuator based on a parallel - aligned lc cell with an appropriate surface anchoring strength. as compared with the existing liquid crystal - based voa structure ( using two cascaded lc cells with a particular material ), the present structure is simple and has no special requirement for the lc materials
提出了基於弱錨定平行排列液晶盒的可變光衰減器(衰減范圍大、衰減曲線下降平緩以保證調節精度) ,與己有液晶型可變光衰減器結構(選用特定液晶材料、兩個液晶盒級聯結構)相比較,本論文提出的基於弱錨定平行排列液晶盒的可變光衰減器結構簡單,同時對于液晶材料無特殊要求。Revolutionary longwave image quality longwave 8 to 9m performance provides superb high definition image quality, ultra precise
圖像性能提供極其精確的測量精度,低的大氣衰減率和高解析度的Vertical dilution of precision vdop
精度垂直衰減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Tdop - time dilution of precision
時間精度衰減因子Dilution of precision
精度衰減因子After introducing the correlative theory of phaselet algorithm and analyzing fourier algorithm and improved fourier algorithm, the ability of eliminating harmonic current and decaying direct current component of these algorithms are analyzed and compared, and conclusions are given
對傅里葉演算法及其改進演算法進行了分析,並介紹了小矢量演算法的相關理論,對各種演算法的濾除諧波和衰減直流分量的能力進行了分析和比較,最後給出了結論:當故障電流信號中存在衰減直流分量時,採用並聯補償傅氏演算法能夠兼顧速度和精度。Avm is essentially a precision array film attenuator, which has a big diameter, high power load, continuous adjustment. the gain of each beam of the main amplifiers is controlled independently by the adjusting the angle of each cell of avm
Avm實質上是大口徑、高功率負載、透過率連續可調的組合式精密薄膜衰減器,通過調節avm各單元偏轉角度大小來獨立控制住放大器各路的增益。One position detented rotary control precision input attenuator per channel
一立場遭到拘禁旋轉控制精度衰減每投入渠道One 22 position detented rotary control precision input attenuator per channel
其中22位拘禁旋轉控制精度衰減每投入渠道High speed, high damping factor, with reduce / gain, full protect system, special heat radiator, excellent components. it can work at 2, 4, 8
本機其特性為高速度、高阻尼系數、帶衰減/增益切換等等功能、完整的保護系統,獨特的散熱設計,精良的元件,可輕松承受2 4 6 8負載。Time dilution of precision tdop
精度時間衰減The resonant box effect is the most important. in chapter five, we use the experimental setup constructed and the cavity decay time method to measure the total loss of a passive resonant cavity, and analyse the experimental data in very detail. we conclude that, in present experimental conditions it is the uniformity and stability of laser mirror to confine the precision and repeatability of experimental results
第五章在建立起了連續光波時間衰減法測量裝置的基礎上,進行了無源諧振腔總損耗的測量,仔細分析了實驗過程中的誤差因素,並指出在目前的實驗條件下限制測量精度和重復性的主要原因是激光鏡片的均勻性和穩定性不理想。分享友人