計數信號 的英文怎麼說
中文拼音 [jìshǔxìnháo]
計數信號
英文
counting semaphore-
It designed signal amplifying circuit, frequency tricking circuit, data sampling and keeping circuit. the choice of 12 bits high accuracy a / d integrated data sampling card made program simply, high flexible and expandable. and to each error which is likely to occur in high voltage capacity type equipment during the monitoring, analysis and judgement are given
在硬體電路實現上，注意選擇信號傳感器；合理設計了信號放大電路和濾波電路；設計了頻率跟蹤電路，數據采樣/保持電路；結合軟體控制選用了12位高精度的a / d轉換器，使軟體編程簡化且具有較高的靈和性和可擴展性。The research of multipath parameter estimation algorithms and accomplishing them with software. to estimate multipath parameters, multipath delays must be estimated by code filtering in advance
通道多徑參數估計演算法的研究和軟體實現在估計多徑參數時，首先使用碼濾波方法估計出信號的多徑時延。Design of non - contact life - parameters signal detection system
非接觸式生命參數信號檢測系統的設計On the basis of study of fractional fourier transform and its digital computation, the main aim in this paper is to study the applications of fractional fourier transform in lfm signal detection and parameter estimation, to research filtering of lfm signal in the fractional fourier domain and the digital image watermarking in the fractional fourier domain
本文以研究分數階fourier變換的基本理論與應用為目標。在深入分析分數階fourier變換原理和數值實現的基礎上，對lfm信號的檢測與參數估計， lfm信號的分數階fourier域濾波，以及二維分數階fourier變換在數字圖像水印中的應用作了研究和模擬實現。The coriolis mass flowmeter ( cmf ) is widely used in industries, because it has many advantages - high measurement accuracy, being able to measure fluid mass flow directly and measure various parameters of fluid, etc. originally analog signal processing methods are used for cmf, but some companies and institutes devote themselves to digital signal processing methods because they have many advantages over analog methods
科里奧利質量流量計由於其精度高、測量流體范圍廣、可做多參數測量等優點，在工業上獲得了廣泛的運用。原來的科氏流量計的信號處理主要是採用模擬電路，由於模擬信號處理系統存在很多缺點，越來越多的公司和研究機構都投入大量的人力物力來研究數字信號處理方法和系統。According to transcendent knowledge, this algorithm classifies modulation systems by computing instantaneous frequency and instantaneous bandwidth of signal and regarding them as modulation parameters
該演算法憑借先驗知識，通過計算信號的瞬時頻率和瞬時帶寬，並以此作為制式識別參數來判斷信號的調制類型。The main contributions to the investigation of the device for fault location are as follows : a set of device for fault location of the transmission line is developed, which consists of the signal sensor and the data acquisition system. the data acquisition and calculation are controlled by industrial controlling computer
本文進行了高壓架空線路故障測距裝置的研究，設計製作了一臺故障測距裝置，設計了信號的傳感器和數據採集部分，採用工控機控制數據採集卡進行數據採集和分析。Although there have been many application instances in the field of input / output device technology, we need an specific project and technology route aimed at an given application. in this thesis, we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder. this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station. cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder, counting the number of electrical pulse, controling the state of signal processing circuit, exchanging data between this circuit and pci control
本文結合相關技術的介紹和分析，描述了一個基於增量式旋轉編碼器的坐標參量採集介面卡的實現，此介面卡是一種用於採集全數字攝影測量系統地面影像模型坐標位移量的專用設備，該設備採用cpld器件和vhdl語言實現增量式旋轉編碼器的脈沖信號鑒相和計數、信號處理部分的狀態控制以及和pci總線晶元ch365之間的數據交換和通信功能，同時該設備的驅動程序基於wdm模式，並且配置有結構良好的動態鏈接庫程序作為系統軟體和驅動程序之間的數據和控制交互中間介面，能夠方便地運行在windows98 / 2000 / xp操作系統平臺上，具有實時性強、工作穩定、通用性較好和性價比高等特點。The various functions inside the virtual spectrum analyzer introduced in the paper is time domain wave analysis, fft transfer, ifft transfer, cross analysis, and so on, which are all described in function controls. finally, this paper introduce the assemble of intelligent controls - oriented virtual instrument. and use classical signals and industrial practices to demostrate the accurate of virtual spectrum analyzer
本文介紹的智能控制項化頻譜分析儀所具備的功能，有信號的時域分析、 fft變換以及ifft反變換、信號的微積分運算、信號的頻譜分析、信號自功率譜密度函數計算、信號互功率譜密度函數計算、頻率響應函數計算和相干函數計算，都是集成在功能控制項裏面的。Based on this scheme, the control system architecture is designed. based on this system ’ s necessary, the signal conditioning interface box is designed, it is used in the conditioning of sensor and the design of drive circuit, the software of controller is also developed, finally, the performance index of controller is validated by a closed - loop simulation test system with aero - engine model and digital controller
根據此方案，確定了模擬平臺中控制系統的體系結構，根據系統的需要，設計了信號調理介面機箱，實現了對傳感器信號的調理及驅動電路的設計，並進行控制器軟體的開發，最後利用發動機數學模型和數字電子控制器組成閉環模擬環境，以驗證控制器的各種性能指標。Thus the principle to deal with the four basic waveforms is put forward and a new phase - demodulation circuit is designed. experiments for the two circuits on same gyros are made and they indicate clearly that the mdrlg ' s null - shift problem consists in the faultiness of the old phase - demodulation circuit
在此基礎上，提出了處理計數信號過鎖區波形的基本原則，進而設計了新的鑒相電路，並在同一陀螺上對兩鑒相電路進行了對比實驗。Firstly, computer model of mdrlg is set up for simulation purpose. by simulation about the two output signals of mdrlg, four basic waveforms between the two signals in lock - in area are found out and the fact is discovered that the old phase - demodulation circuit introduces errors when it is used for demodulating two of the four basic waveforms
本文首先建立了機抖陀螺的計算機模擬模型，利用該模型對陀螺兩路計數信號及原有鑒相電路進行了模擬，發現兩路計數信號過鎖區時存在四種基本波形，且原有鑒相電路對其中兩種波形產生鑒相誤差。During the research work, two detecting system 36 ghz and 1. 5ghz are selected respectively to obtain life - parameter signals, which are amplified and filtered in the signal preprocessor
在研究期間，分別選用36ghz 、 1 sghz的雷達探測系統獲取生命參數信號，經信號預處理器進行放大、濾波，經a d轉換送至計算機。According to the features of the signal of cmf, i. e. the signal frequency varies in a small range and the signal is subjected to the harmonics, a digital method based on a digital phase locked loop is used to process the signals of cmf, tracks the change of the signal frequency and calculates the phase difference. the technique proposed by the u. s. patent has been improved and made the simulation
針對科里奧利質量流量計信號的特點，即信號頻率在小范圍內變化和信號易受諧波干擾的特點，採用基於數字鎖相環的方法處理科氏質量流量計的信號，跟蹤信號頻率的變化，計算相位差，對美國專利提出的方法進行了改進，並作了模擬。The work of this dissertation is focused on research of some key technics in signal design and processing of mcpc signal. the main content of the dissertation is summarized as follows : it gives a detailed description of the form of the mcpc waveform and its mathematical model, and analyses the formation and properties of phase coded sequence. it discusses the effect of signal parameters on autocorrelation, power spectra and ambiguity function in forms of single pulse and pulse train and compares different kinds of single pulse signals and pulse train signals
本文圍繞著多載波相位編碼信號在信號設計與信號處理的若干關鍵問題進行了研究，主要做了以下工作:描述了多載波相位編碼信號（ multicarrierphasecoded ，簡稱mcpc ）的信號形式，給出了其數學模型，對其中相位編碼序列的構成方式與特性進行了分析;從單脈沖和脈沖串兩種信號形式入手，對多載頻相位編碼信號的參數在自相關函數、功率譜密度和模糊方程上的影響作了詳細地討論，對不同調制方式的單脈沖和脈沖串信號進行了比較。Windows semaphores are counting semaphores, which can be used to control access to a pool of resources
Windows信號量是計數信號量，可用於控制對資源池的訪問。According to the patient ’ s condition, the physician can control the device such as connecting and installing the channels and disposing drugs by selecting the appropriate therapy mode menus on the touchscreen, and then he / she can adjust or set parameters for the control system and the thermostatic incubator by selecting the appropriate menus. then, the directives are given to run the control system and the thermostatic incubator, and the working status of the control system and the thermostatic incubator can be monitored by various sensors. the computer receives the feedbacks from sensors and compares the parameters with the set ones, and finally compensatory control is conducted or alarms sound
醫師根據患者的病情，在計算機觸摸屏菜單上選取相應治療模式，根據觸摸屏上的圖示，進行管路連接安裝，藥物布置等處置，完畢后再根據計算機上菜單調整設定運行的控制系統、恆溫培養箱等相關參數，無誤后，確認輸出驅動指令，使相關控制系統、恆溫培養箱等在接到指令后進行工作，工作狀態可由各種傳感器連續測試並將所得參數信號反饋回計算機，計算機控制軟體將所得測試參數與設定參數比較后，自動進行補償控制或報警提示，使用者根據觸摸屏上所顯示的提示內容，進行修正。In the design of the circuit of hardware, the paper choose the suitable signal sensor, rationally designing the signal enlarging circuit by programme - controlled and signal filter circuit designing the sampling at datas / retaining circuit and hardware communications based on rs - 485 network. combining with software - controlled it select the integrated gathering - card of a / d datas of the high accuracy for the 12th precision, which simplify software programmings and have higher flexibility and can extensible
在硬體電路的實現上，選擇了合適的信號傳感器：合理設計了信號程式控制放大電路和濾波電路；數據采樣保持電路和現場基於rs - 485網路結構的硬體通信系統；結合軟體控制選用了12位高精度的a d集成數據採集卡，使軟體編程簡化且具有較高的靈活性和可擴展性。Though the two new methods can improve the effect of edge detection, they need the gabor and wavelet transforms which make the computation complex and cost much time and are not easy to used in real - time application. this paper presents an efficient fast approach to compute real discrete gabor coefficients by applying the fht ( fast hartley transform ) in gabor transform, also the fft ( fast fourier transform ) is proposed to used in compute the wavelet coefficients
雖然gabor和小波的引入能提高邊緣檢測的效果，但往往因其計算的復雜性而受到限制，本文提出了一種有效的離散gabor變換演算法來計算有限離散實數信號的gabor系數，同時，也給出了基於fft的小波變換快速演算法，為理論的快速實現提供了可能性。It involves not only the detection of signal frequency, signal phase and power factor but also calculation and control of phase. the method of calculating phase is based on fast fourier transform algorithm ( fft ). it is used to calculate signal frequency, signal phase, power factor and the phase on / off time according to sampling instantaneous value of voltage and current
本文主要提出了採用信號處理技術（快速傅里葉變換fft ） ，根據電壓、電流采樣的瞬時值，計算信號頻率、信號相位、功率因數、分合閘相角的選相控制方法，並介紹了最終控制分合閘的原理與實現方法分享友人