步測器 的英文怎麼說
中文拼音 [bùcèqì]
步測器
英文
pacer-
An initial measurement is carried out and the result shows that the bolometer is still sensitive to the infrared signal even the intensity of the signal source is very weak, if the bolometer is in a proper temperature
初步的測量表明，在最佳工作溫度點附近，器件對信號具有靈敏的響應。這就為器件的進一步測量和製作奠定了基礎，也為熱探測、熱成像等工作的進行提供了可能。According to the lms criterion, steps for calculation implement is proposed., and simulations on convergency and ber properties blind algorithm has been done. in addition, as a introduction of blind algorithm, subspace decomposition, minimum output energy ( moe )
針對該檢測器，將最小均方演算法（ lms ）應用於該檢測器，給出了演算法實現的計算步驟，模擬了演算法收斂特性及課碼性能，分析了自適應能力。After an elementary study with lunar orbiting satellite, it is necessary to make exploration devices land on the moon and carry out detailed exploration with lunar rover in a rather large area
在利用環月衛星對月球進行初步的探測之後，需要使探測器在月球表面軟著陸，並由月球車執行較大范圍的詳細探測任務，為載人登月和建立月球基地做好準備。The detectors of the emitted radiation are synchronized to their specific element's source.
發射輻射的探測器與它們的特定元素的激發源是同步的。Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core. the speech codec optimizes g. 729a codes and added voice activity detection of g. 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information. but only get the frequency information is not enough in cpt detector, this thesis introduces a method
其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求，並在此基礎上加入g . 729b的靜音檢測模塊，以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法，通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計，信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號，信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計，除了類似雙音多頻的信號發生及頻率檢測設計外，還需要檢測信號持續時間，作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。Because a conventional quantum well is needed to add in the novel structure, many experiments were made on conventional gaas / algaas qwips. the experiment results based on various test methods were well analyzed. the detectivity of conventional gaas / algaas qwips can be comparable to the current level gradually
由於改進結構中需要加入一常規量子阱，因此針對常規結構做了部分實驗，由多種測試方法得到大量實驗數據，並對其進行了全面的分析，常規gaas algaas量子阱紅外探測器的研製已經逐步趨向正常化。And the working principle and circuit makeup of the optical transceiver are analyzed in detail. secondly, according to the actual requirements, optical transmitter and optical receiver were designed into a small module to carry out low - rate optical transceiver. finally, fundamental parameters of the optical transceiver are tested under existing conditions
本文在簡述光纖通信原理的基礎上，從最基礎的光有源器件工作原理、特性入手，重點闡述了光收發一體模塊電路結構以及工作原理，在此基礎上根據實際情況設計了光發送、接收電路，實現了低速率光收發一體模塊，並在現有條件下對該模塊進行了初步測試。It ' s a more accurate method in determining the isotopic abundance of uranium. the paper describes the measurement principles that allow accurate measurements to be taken on samples of arbitrary size, shape, and measurement geometry - and of arbitrary physical and chemical composition - through the use of know nuclear decay data ( half - lives and branching intensities ). this method relies on internal gamma - ray peaks from the spectrum under analysis to self - calibrate the unknown spectrum for energy and peak shape
本工作首次分析了pc fram軟體的演算法並使用高純鍺探測器探測歐共體低濃鈾標準樣品，使用pc fram軟體的預設參數並不能得到準確的富集度值，通過大量的實驗，本工作對鈾富集度測量中的關鍵問題進行了初步的研究並給出了本實驗室條件下準確分析鈾富集度的修正參數和條件。Preliminary results indicate that the standard and low electromagnetic interaction packages in geant4 give almost identical simulation on emc, the detector performance, such as energy / position resolution, satisfies requirements of physics design. different behaviors of hadrons and electrons in emc will be helpful for particle discrimination, such as e / discrimination. the complete and perfect offline simulation software will play an important role in physics study at bes
初步結果顯示:標準和低能兩種電磁相互作用模擬軟體包在bes能區給出了相同的模擬結果;探測器的運行指標，如能量解析度和位置解析度，滿足物理設計指標;強子和電子在emc中的不同行為將會給進一步的粒子鑒別（如e /鑒別）提供幫助;完整而完善的離線模擬軟體將在今後bes上的物理研究發揮重要作用。An instrument that gauges the approximate distance traveled on foot by registering the number of steps taken
計步器，步程器一種通過記錄所行步數來估測步行近似距離的儀器The output module can set the interval of the laser pulse to change from 50ns to < wp = 5 > 3. 2ms in steps of 50ns, and the frequency from 500hz to 100khz in steps of 1hz. it can control well the spcm and the input module
輸出系統能控制單光子發射時間在50ns到3 . 2ms之間步進50ns可調，發射頻率在500hz到100khz之間步進1hz可調，並能很好地控制單光子探測器和數據採集系統的工作。Authorised hikers through the park will be given transponders that tell the detectors who they are, as with the “ identification friend - or - foe ” systems on military aircraft
批準可進入林區的徒步旅行者將被佩戴上異頻雷達收發機，這樣探測器就能識別出他們的身份，這是通過軍用飛機上的「敵友身份識別」系統來完成的。Architectural support for programming languages and operating systems, cambridge, massachusetts, oct. 1996, pp. 138 - 147. 8 wang k, franklin m. highly accurate data value prediction using hybrid predictors. in proc
混合值預測器預測時首先訪問二級值預測器，當二級值預測器不能預測時，則利用步長值預測器的預測結果。After measuring dark current, photocurrent and response to x pulse of gaas detector before and after 1. 7 mev electronic radiation, the response tune, fall time of trailing edge, full width of half maximum ( fwhm ), sensitivity, carrier life, mobility are researched and contrasted. the result shows that the response speed of detector, time resolution ratio and nonlinear of back edge of output signal have been improved greatly after electronic radiation. though sensitivity of the detector reduces, its measuring range can be widened
為了使探測器的性能得到進一步的提高，我們對其進行了電子輻照改性，並測量了本徵砷化鎵探測器和經過1 . 7mev電子輻照的探測器的暗電流、光電流及對x射線的脈沖響應，並對其響應時間，后沿下降時間，半高寬（ fwhm ） ，載流子壽命，靈敏度進行對比，研究，結果顯示經電子輻照后的探測器的性能得到了改善，使響應速度，分辯率進一步提高，並消除了探測器輸出信號后沿的非線性，雖靈敏度有所降低，反而使其測量范圍得以拓寬。Sliding mode observer for sensorless vector control of pmsm
基於滑模觀測器的無傳感器永磁同步電機矢量控制系統Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。Efforts are concentrated on how to improve the performances of the synchronous and velocity sensor of high speed rotating mirror camera, creative ideas in this paper are displayed as follows. ( 1 ) high speed rotating mirror camera signal is processed by means of opto - electronic system. the advantages of the opto - electronic system, such as good emi resistance and fast processing ability, are employed to optimize the design
本文的工作就是圍繞如何提高高速轉鏡相機同步與轉速傳感器的性能開展的，主要工作內容和創新點如下: （ 1 ）利用光電系統對高速轉鏡相機同步與速度傳感信號進行處理本文利用光電傳感系統的抗電磁干擾及可高速處理的特性，把高速旋轉狀態下反射鏡的時間參量轉換為光信號，再經過光探測器轉換為電信號。The newest mars satellite, the mars reconnaissance orbiter, pointed its cameras toward the global surveyor monday, but preliminary analysis of the images, shows no sightings
最新的一顆名為火星勘察人造衛星的火星探測衛星，在本周一將它的攝象機指向了環球探測器，但是對圖象的初步分析卻沒有什麼發現。The prediction control problem for discrete time - delay system and continuous time - delay system with sinusoidal disturbance is concerned in this paper. chapter 3 is to remove the time - delay from a discrete system with control time - delay by predictive control. the state predictive observer and optimal predictive controller for the discrete delay system based on a state space model are presented
對于離散時滯系統，本文第三章通過構造預測模型所得的系統輸出預測向量和系統的控制向量，為系統設計了全維狀態預測觀測器（ spo ） ，並將該狀態預測觀測器應用於多步預測控制，根據最優控制理論，構建了全維模型預測控制器。We have obtained some achivements in this work, and our work is one of the important progress in the field of the cdse room temperature nuclear detector research
若進一步改善晶體的質量和u器的制備工藝， cdsekil核輻射探測器將會有廣闊的應用前景。分享友人