相位項 的英文怎麼說
中文拼音 [xiāngwèixiàng]
相位項
英文
phase term-
To provide strategic vision and vigorous academic leadership for all matters relating to undergraduate bgs degree
對所有和bgs學位項目相關的事宜提供長遠的戰略性的領導。For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”
本文主要開展了以下三項研究工作: （ 1 ） .用自定義編碼方案，將數字和字母（ ascii碼）轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換，得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗，證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率，對於20次列印-掃描實驗，誤碼率不大於0 . 0026 。Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward
文摘:在傅里葉變換輪廓術中，由於ccd探測器光電響應的非線性，將在測量中引入高次項，從而對相位的求解造成較大誤差，通過理論的推導定性地解釋了誤差的來由，並用計算機進行了模擬計算，最後提出了減小誤差的方法。The term to be added are the multiplicand multiplied by each of the bits of the multiplier.
各相加項等於乘數的各位乘以被乘數。In order to obtain a high - quality speech codec, the phase information of speech should be included in codec. in this thesis, a method for quantizing the phase of sew ( slowly evolving waveform ) and reconstructing sew ’ s phase with cubic polynomial interpolation is given based on the perceptual weighting analysis - by - synthesis ( a - b - s ) vector quantizer for the phase spectrum in wi coder
本文基於感覺加權相位譜分析合成（ abs - analysis - by - synthesis ）矢量量化方法，給出了一種wi編碼器中慢漸變波形（ sew - slowlyevolvingwaveform ）的相位信息量化及合成端相位的三次多項式插值重建方法。This paper is based on the reality of maritime affairs game of shanghai. it defines the content of project appropriation budget of unit of maritime affairs according to the relevant policies and regulations, makes five major principles while projects are arranged in an order, and structures the mode of two delphi to appraise the project appropriation budget. the mode of two delphi is that the unit of maritime affairs designs respectively the appraisal index system according to the classification of appropriation budget of the project ; uses delphi at the first time to define the weight of every appraisal index ; then uses delphi twice to appraise the appropriation budget of the project
本文結合上海海事局的實際情況，根據相關政策法規，界定了海事單位項目支出預算的內容，明確項目排序的五大原則，構建了兩次專家調查法模式進行項目評價，即海事單位按照項目支出預算類別分類設計評價指標體系；運用專家調查法確定各分指標的權重；再次運用專家調查法對項目支出預算進行評價，試圖為海事單位項目支出預算評價找到一條可行的途徑。With linear time - invariant modeling of phase noise and definition of “ effective resistor ”, we analyze the critical parameters of the circuit and calculate the value of phase noise at the 1 / f ~ 2 region
引入「有效電阻」的概念對電路的各項關鍵參數在線性時不變模型下進行理論分析和推導，得到相位噪聲在1f2區域的理論值。Moreover a example makes know, it can calculate lesser even harmonics exactly. especially it is more obvious to improve the pricision for calculating their phases. the paper designs a data gather circuit aimed at the require of power system harmonic measure
文中給出了計算實例，實例表明該演算法具有很高的計算精度，即使對于幅值較小的偶次諧波也能準確地求出其各項參數，尤其是對于提高相位計算的精度更為明顯。Outside company to north downtown melon a starshine on the harm the barium wrings the for making outside the company invests the item can obtain the result as soon as possible, the north downtown government synthesizes the area an advantage between characteristics and north downtown that consideration protect settles, programing and guide related item and business enterprises to some a the district comes together, hoping effort that through several years, can become to have the north downtown gradually characteristic three produce to develop the area, industry develops the area, high - tech demonstration park area. 1, the superhighway leads the way, 107 country way two outside wreath in sides, easts road district of " three produce to develop the area ", release a batch of amusement parks
外商對北市區投資除了全部享受國家省市給予的優惠政策外，還享受北市區政府「照章納稅，財政返還」等方式給予的格外優惠和獎勵。為了使外商投資項目能夠盡快取得成效，北市區政府綜合考慮保定的特點及北市區的區位優勢，規劃引導相關項目及企業向某一區域聚集，希望經過幾年的努力，能夠逐步形成具有北市區特色的三產開發區工業開發區高科技示範園區。Analysis of ambiguity - function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal. 3. this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform
包括基於多項相位變換的lfmcw雷達速度和加速度估計方法;基於修正多項相位變換的多目標lfmcw雷達速度和加速度估計方法;基於一般高斯噪聲環境下的lfmcw雷達速度和加速度聯合估計方法;另外提出了基於頻域增采樣內插方法以提高lfmcw雷達測距精度。Through analyzing the spinning echo, the arithmetic of " estimation of signal with polynomial phase " is adopted to estimate parameter of echo ' s phase. then the influence of high step phase pro duced by spin is removed. the one - dimension range - profile can be renewed by this arithmetic and the good effect is showed by the result of simulation in chapter v, the main works of this dissertation are summarized and the future researched areas are pointed out
通過對自旋目標回波的分析，本章採用了「多項式相位信號系數估計」演算法對回波相位進行參數估計，可以去掉旋轉產生的相位高次項影響，從而恢復給出目標的一維距離像，模擬實驗表明本演算法取得了好的效果。The proposed jtc greatly reduces the intensity and width of the strong dc component, sharpens the correlation peak, eliminates cross - correlations among each input target, and the conjugate cross - correlation between the reference and input targets at the same time. in order to calculate the discriminant probability of the objects, a simple but self - explainable statistic function was presented to show where the true object and false object occurred in the unknown input image sequence
在此基礎上，論文提出了基於位相編碼振幅調制的畸變不變多目標識別聯合變換相關技術，即通過改變隨機位相模板的調制因子的大小來改善相關輸出的性能，一步消除了共軛相關項、輸入待識別圖像之間的互相關項，並大大降低了零級相關峰的能量和寬度。Based on the convergence criterion of root - mean - square ( rms ) of phase and output power, the actual intensity on reflectors are solved with fox - li iteration so that the deformations of mirrors and one - way phaseshifts are calculated. by simulating one - way phaseshifts with zernike polynomial, the laser modes are studied with method of iteration and geometriy. the evaluation factors of components influences on beam quality is discussed
根據相位均方根值迭代收斂準則和輸出功率，用fox - li迭代法求出反射鏡上實際的光強分佈和熱源，得到鏡面的位移變形和單程附加相移，以zernike多項式擬合單程附加相移，分別用迭代法和幾何法計算了腔鏡變形時的腔模光場，建立了光學元件對光束質量影響的評價因子，研究腔鏡冷卻效果和冷卻方式，對輸出耦合鏡的變形進行了分析。Measurements include frequency, frequency ratio, time interval, rise fall time, phase, duty cycle,
量測項目包括頻率頻率比時間間隔上升下降時間相位信號周期The output power of the one - seven power divider was accorded with the coefficient of the chebyshev polynomial. the output phase of the divider was almost the same
七路不等分功分器輸出的電流幅度按7次切比雪夫多項式系數分佈，各口輸出相位基本一致。( 2 ) develop an urban microscopic traffic simulation system, which involves vehicle generation model, network model, traffic regulation model, signal control model, vehicle action model, route choice model and intersection turning model. ( 3 ) realize and research the method that signal cycle and phases are assigned by the traffic need. when vehicles od is known, this method can be used to decide the maximum traffic capacity of signal - controlled intersection and the evaluation reference of current control method
模型中充分考慮了鄰道車輛對駕駛行為的影響及駕駛員的反應延遲，使模型更符合真實情況； （ 2 ）開發了城市微觀交通模擬系統：該系統包括車輛產生模型、路網模型、交通規則模型、信號燈控制模型、車輛行為模型、路徑選擇模型、路口轉向描述模型； （ 3 ）在模擬應用中實現並研究了信號燈周期及其相位按交通需求動態分配的方案，提出該項模擬可用於確定在已知od下，信號燈控制路口的最大通行能力，並可作為現有控制方案的評估依據。The jamming of multiple noise and the polynomial phase modulation caused by non - uniform relative motion are the main problems in mmw doppler guidance radar signal processing
乘性噪聲的干擾和非勻速相對運動所引起的多項式相位調制是毫米波多卜勒制導雷達信號處理中所面臨的主要問題。We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation
其一，僅有阻尼相互作用和勢能相互作用，此時利用位移算符的性質和相干態的性質很方便地推導了量子動力學模型的相干項（約化密度矩陣的非對角元） ；其二，考慮的是既有單光子相互作用又有雙光子相互作用，這時利用相干態、壓縮算符及正則變換等的性質推導出相干項。Angle measuring precision phase sum / difference mono - pulse radar receiver is not only related to accurate strike to target, but also the base of successful penetration of interceptor missile for tbm anti - guidance system using two point sources of correlation, which is one of radar angle fraud technologies. thus, research on technical criteria influencing angle measuring precision of receiver is meaningful
相位和差單脈沖雷達接收機的測角精度，不僅關繫到是否能精確地打擊目標，而且是tbm反制導系統利用相干兩點源雷達角欺騙技術，成功突防攔截導彈的基礎，所以對影響測角精度的接收機各項技術指標進行研究具有重要意義。Although the work is based on the nonstationary signal of quadratic phase, the methods can also be extended to higher - order polynomial phase signal
論文的研究雖然是基於不高於二次相位項的非平穩信號，但是其思想方法也可以推廣到更高階的多項式相位信號。分享友人