調處變數 的英文怎麼說
中文拼音 [diàochǔbiànshǔ]
調處變數
英文
manipulated variable-
Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理( chirp - fourier變換)在應用到制導雷達信號處理中所存在的缺陷。Research show that wavelet varied - grid feature vector is characterized by high - stable and high - distinguish. based on this vector the apery cognitron has solved the harmony of single - classifier and multi - classifier and the harmony of multi - feature. the data shows that the recognition rate and reliability has been effective improve
實驗數據表明,小波變網格特徵向量具有穩定性高、區分性強的特點,基於此的智能字元識別機解決了單、多分類器協調和特徵協調問題,在應用快速二值化方法加強處理實時性的同時有效地提高了車牌字元的識別率和識別可靠性。This text summarises several control forms of gushing out oil pump test platform simply, and mainly proposes analog and digital control schemes of close ring adjusting speed, at the same time, gives the principles and implementation methods used in parameters control and measuring, this text introduces the asynchronous electromotor " s control process, in which, fuzzy control arithmetic is used, and the control commands are passed on by means of communication between mcu and frequency converter. there are two parts in this system. one is superior computer that is ordinary pc, the other is hypogynous at89c52. the functions of superior pc are control and display information through screen, and the functions of ats9c52 includes control, collecting, display, treatment, uploading of all parameters
詳細介紹了應用模糊控制演算法,以變頻器通訊方式進行異步電機調速的控制過程。系統由上位機和下位機兩部分組成。上位機為普通pc機,主要實現系統控制、數據顯示等功能,另外還有數據庫瀏覽、數據列印等功能;下位機以at89c52為核心,負責所有參數的採集、處理、顯示、上傳、控制等。In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage
我們對兩種正交調制方式( 16qam和4 - qpsk )進行了模擬工作並給出了模擬結果,同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試;然後在基於軟體無線電思想的數字處理平臺(該數字處理平臺實現了中頻數字化)上用dsp軟體完成了載波的相位跟蹤。In this paper, starting from the basic law of fluid me chanics, a mathematical model equation for describing the tran sient flow of the wet gas in the pipeline under peak shaving op eration is established, a simplified treatment for the model equa tion is made and a train of thought for concrete calculation is de signed
文章從流體力學的基本規律出發,建立了描述濕天然氣管道輸送調峰工況下瞬變流的數學模型方程,並對模型方程作了簡化處理,設計了具體的計算思路。The input signals pass through the prepositive circuit which transforming the measured signals ( voltage or current ) into small voltage signals, the signal adjust circuit consist of programmable - gain amplifier and filter, and digital signal processor tms320lf2407 for data acquisition and processing in turns. provide the measuring results on lcd module. and also can transfer data to the pc ’ s rs232 for farther analyse
採用前置電路將被測信號(電壓或電流)變換為小電壓信號,經過信號調理電路對信號進行程式控制放大和濾波后,通過tms320lf2407實現信號的數據採集、信息處理和計算,將測量結果通過液晶模塊顯示,還可經過rs232介面與計算機進行數據傳輸,做進一步的分析和應用。The main reason for this test is simply that users of the subpackage who use the expat parser currently need to call a special setup function to enable processing xml documents with namespaces this fact is evolutionary rather than designed, and might change later
創建這一測試的主要原因僅在於,使用expat解析器的子軟體包用戶常常需要調用一個特別的設置函數來啟用有名稱空間的xml文檔的處理(這個實際情況是演化來的而不是設計如此,並且以後可能會改變) 。In this method of measuring time - resolved spectrum, a special light beam modulator translates the time - distribution of an optical spectrum into a space - distribution of light intensity of the light beam, and the space - distribution spectrum is dispersed by a multi - spectrometer, then it is detected by an ordinary 2 - d ccd array detector
瞬態時間分辨譜測量方法的主要思想:使用特殊光束調制器把光譜隨時間的變化過程轉化為光強的空間分佈,經色散后,以二維探測器接收並轉換光信號為電信號,用通用計算機控制採集並處理光譜數據。These applications exchange data, call remote processes, change information, provide status notifications, and engage in an infinite number of other coordinated activities
這些應用程序交換數據、調用遠程處理、改變信息、提供狀態通知及參加無窮無盡的其他同等的活動。When the cur - cuit resets, the chip remains accepting state, works in burst mode, and adopts dpsk modulation mode. it proceeds quadrature - sampled intermediate frequency signal after the ad9057 has converted, then down - converses, despreads and demodulates. the demodulated baseband signal will be sended into scm to dispose through interrupt
上電復位后,晶元處于接收狀態,工作在突發模式下,採用dpsk調制方式,將ad9057轉換完的中頻信號進行復正交取樣後下變頻、解擴、解調,通過中斷將解調完的基帶信號送入單片機處理;處于發送狀態時,可將數據擴頻、調制,經ad9768送出。And the most advantage of ofdm is that it can convert high - rate data stream into the low - rate and reduce data bandwidth so that multi - path - fading can be transformed into flat fading in wireless circumstance
這種調制技術的最大的好處就是將高速的數據流,變換成并行的低速數據流,減小了數據帶寬,從而可將無線環境中的多徑衰落(頻率選擇性率落)轉換成平坦衰落。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。It includes examination - adjustment program, failure process program, display program, information management program, i / o control program and data transform program
軟體主要由下面幾部分組成:檢測調整程序、事故處理程序、顯示程序、信息管理程序、 i o控製程序、數據變換處理程序。The thesis firstly analyzes the signal form of frequency modulated interrupted continuous waveform ( fmicw ) in theory, studies the principles of detecting range and velocity for fmcw, and further discusses the essential processing methods of the fmicw signal form, including the range transform processing method based on the strict corresponding relation between time and frequency domain, the velocity doppler transform, the digital beam forming
本文首先從理論上分析了在高頻地波超視距雷達所用的線性調頻斷續波信號的形式,研究了fmcw雷達測距測速原理,並深入地探討了fmicw信號的基本處理方法以及具體的演算法,主要包括距離變換中採用的時間波門相關處理方法,速度多普勒變換,數字波束形成。Compare to other kindred products, besides adjustment of speed, the new calibrater can adjust teeth number and voltage of fanout. the new calibrater can also output a pulse one cycle which simulate cylinder top dead center
這種標定器與國內外同類產品相比,除了轉速可變外,還有一些創新之處:齒數可調、輸出幅值可調、同時可以輸出每周一個的上死點參考信號。This paper establishes the linear model of hydro - turbine and deducts its transfer coefficients. then the optimized operation parameters are gained in the frequency disturbance and load rejection simulation. through comparing dynamically, this paper analyses the impact on its dynamic performance if some governing system parameter changes
在研究小波動情形時,即系統在穩定工作工況點附近小瞬變時,可以把非線性系統進行線性化處理;本文建立了水輪機調節系統的線性化模型,推導了其中的傳遞系數;對水輪機調節系統的頻率擾動和機組突甩負荷工況進行了模擬試驗,整定了最佳調節參數;通過動態比較,分析了調節系統參數改變對其動態性能的影響。With the computer controlling the output of the digital signals and the analog signals, controls and adjusts startup, stop, turn and rotational rapidity of the transducer - electromotor and the strength of brake actuator ; installs the torque sensor on dynamical axis, and installs the encoder on non - dynamical axis of the dimensional globoidal indexing cam mechanism ; utilizes the virtual instrument language labview development the test and control system, with the computer real - time monitoring, late displays and storages the data of the test, and processes the data and analyses it
利用計算機控制數字量輸出和模擬量輸出來達到控制和調節變頻電機啟停、轉向、轉速;控制制動器的啟停和加載力;在弧面分度凸輪的加載軸和空軸上安裝扭矩傳感器和編碼器;應用虛擬儀器語言labview開發試驗臺的測控軟體系統,用計算機進行實時監測與事後顯示與存儲,並進行信號處理與分析。The innovative ideas in this paper is to replace the linear fixed - gain pid controller for a nonlinear pid controller. based on the step response curves of conventional control system, we analyze the ideal variety of three gains in different times and construct the simulated curves of proportional, intergral and derivative gain. the controllers has considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, the dynamitic performance of the system and the size of input. to solve the problem of so many unknown parameters, we use transmit arithmetic to find the parameters which are fit for the system. to keep the robust and stable performance
本文的創新之處在於,將傳統的固定增益的pid控制器用非線性pid控制器來代替,並在此基礎上,就一般控制系統的階躍響應曲線,分析了在不同響應時間階段pid的三個增益調節參數的理想變化情況,並根據這些理想變化,分別給出了比例、積分、微分增益參數的一種連續的非線性擬和函數。在分析雙位置環時,仔細考慮了能使系統性能變壞的各種因素,如系統的動態性能及控制出入能量的大小等等。First. adjust the fiber to get the interferogram, use the four - step phase shifting method control the change of phase, achieve phase shifting. in data processing, take the pzt ' linear influence into account, calibrae the pzt. unwrapping the phase, gain the continuity, get the actual phase. analyzing the data with zernike orthogonal methord, fit polynomials that are not orthogonal over the data points, through visual c + + program, obtain polynomial parameters. calculate the shape of the surface, compare the result with zygo, then achieve the better experimental result
首先,經光纖耦合輸出調整得到干涉圖,採用四步相移方法,控制干涉圖位相變化,實現相移;數據處理過程中,考慮壓電陶瓷的非線性影響,進行標定;對位相進行模式展開連續性處理,得到實際位相;用zernike多項式正交化方法分析,在離散點上處理數據,經visualc + +程序設計,得到多項式系數,計算出面形分佈,同zygo所得結果進行比較。Firstly, we introduce the fundament theory of digital quadrature modulation and digital filter, we also introduce the concept and the key technology of software, including smart antenna, ad, sampling, digital down sample theory. it " s very important to understand this theory. subsequently, we introduce two common designs and its supported hardware, and we also present a new design based on swr
文中首先介紹了數字信號處理技術,包括數字正交解調技術、數字濾波器的基本理論,接著介紹了軟體無線電的基本概念和關鍵技術,包括智能天線的概念、軟體無線電中的ad技術、中頻帶通采樣技術、數字下變頻技術,深入理解這些技術是實現成功方案的基礎。分享友人