波形號 的英文怎麼說
中文拼音 [bōxíngháo]
波形號
英文
til-
Given the abilities of generating all kinds of ideal and not ideal signals, it has been widely used in the domains of communication, radar, navigation and astronavigation
它可以產生各種理想及非理想的波形信號,是電子工程師、生產線以及教學科研的重要測試設備,廣泛用於通信、雷達、導航、宇航等領域。By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析,給出了更為嚴格的約束條件,保證了信號處理后距離譜峰值的唯一性。最後,分別介紹了fmpcw和fmicw信號的不同處理方式,並對兩者不同的時域濾波性能進行了比較,並對二者的差異進行了分析。Software part want function that realize : through interrupt service routine gather and come out regularly ecg signal, store among computer in the form of the binary scale ; data compress programme should realize to ecg signal pretreatment and compress of signal, narrow the storing amount of the data, save the space ; case information management system realize patient information and heart telecommunication file of interest, keep and in the data base, can show the ecg signal wave form at the screen of the computer directly data that gather. and has offered and type and report the single function
軟體部分所要實現的功能為:通過中斷服務程序把心電信號定時採集出來,以二進制的形式存儲在計算機中;數據壓縮程序應實現對心電信號的預處理和壓縮,縮小數據存儲量,節省空間;病例信息管理系統實現患者個人信息和心電信息的存檔,把採集的數據保存作數據庫中,能夠將心電波形直接顯示在計算機屏幕上,並提供列印報告單的功能。In addition, we analyse the dead time effects of pwm control on the output waveform
另外還分析了逆變橋上下管驅動信號上的死區對輸出電壓波形的影響。In this paper, combined with currently voice coding technique, espically with the fabulosity development of the mixed voice coding and the increasingly utility of the digital signals processor. we investigated the voice coding technique and discussed emphasizedly the technology of variable rate voice coding technology
本文結合當前語音編碼技術尤其是混合編碼技術的驚人發展及數字信號處理器的日益實用化,研究了語音編碼技術,並重點討論了變速率語音編碼技術。論文簡要介紹語音編碼技術中的波形編碼和聲碼器的主要性能。Moreover in speech enhancement, especially in reducing the pulse noise, morphological algorithm has its unique advantage. particularly morphological filter may maintain the preferable accurate of the speech signal in speech waveform, and which produces little impairment to the formant of speech. so the spectrum structure of the speech is retained well, and the quality of the speech will not be reduced
特別是,在時域波形分析中,形態學濾波增強較小波去噪更好地保持語音信號的細節;在頻域分析中,形態學濾波對語音信號的基音頻率、頻譜斜率、共振峰等語音特徵的影響很小,因而能夠較好的保留語音信號的頻譜結構,使語音品質不致降低。The experiment apparatus has been developed, which is based on software ( labview ) and hardware ( pci board ni 6024e ). the displacements and generative force at the tip of the ipmc actuators were measured with respect to the different voltages, frequents and various waveforms which include square, sinusoidal, and triangular wave
實驗選取了不同電壓幅值,不同頻率的方波、三角波、正弦波三種波形作為電激勵信號,利用高速攝像記錄ipmc的位移變形,並通過力傳感器實測了ipmc試樣末端的輸出力。To the principle of single - station high - frequency ground wave detection radar, simple pulse wave was chosen, but this wave has many limitations, so continuous signal wave was preferred
從雷達信號波形選擇來看,對于單站高頻地波超視距雷達體制,最初採用簡單脈沖波形。但這種波形存在著許多缺點,最終採用連續波信號體制。These conceptions might be used for interpreting " time - lag " of signal and leveled phenomena of waveform - signals that were produced on time - domain figures in application of guided wave to operate nondestructive test
這一概念,可以解釋運用導波進行無損檢測得到的時域分析圖中信號發生的「時滯」與波形拉平現象。The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part
本文所作的主要工作及研究成果主要有以下幾個方面: ( 1 )對自導工作過程中的信號與信息處理的基本理論與方法進行了較為全面的研究,為建立一個較為完備的自導模擬系統提供了理論基礎; ( 2 )討論了自導系統工作過程中海洋通道對目標回波信號與目標輻射噪聲信號等的影響,建立回波信號的數學模型、環境場中的噪聲信號模型(包括海洋環境噪聲、目標輻射噪聲與魚雷背景噪聲等)與海洋混響模型,模擬產生了聲自導系統基陣接收到的回波信號與噪聲信號; ( 3 )深入研究並建立了自導模擬系統的總體框架,給出各個具體功能模塊組成,討論了聲自導系統對信號的時域與空域處理,並結合模擬程序中陣列信號處理模塊,給出固定多通道波束形成的模擬實現過程; ( 4 )根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體,通過網路與控制系統相連,組成完整的魚雷模擬器。At present time, the infrasound method stays the stage of using recorders to record the infrasound wave continuously for 24 hours. automatically data acquisition and computerized analysis is not available
目前次聲波採用記錄儀連續24小時觀測記錄其波形,還未實現數據的自動採集,所以無法利用計算機對信號進行分析處理。In order to examine the south motorcycle engine preignition phenomenon, using the rich burning information of the massive ions which are produced when the air cylinder is burnt, through analyzing the wave form difference between lighting a fire normally and firing early, it can be determined whether preignition occurs or not
為了檢測南方摩托車發動機早燃現象,利用其氣缸內燃燒時產生大量的離子電流信號所包含的豐富燃燒信息,對其火花塞正常點火和熾熱點火離子電流顯示的波形進行研究分析,從而確定是否發生早燃。First, this paper gives a method, which is utilized by baseband system according to wcdma system capability requirements, using asic + dsp to realize raker, using dsp + dsp to realize symbol process. the hardware structure of asic + dsp and dsp + dsp is designed from the whole design view. then, the discussion is made of the main function module of ic2001 and dsp, hi module, dsp peripherals on chip such as hpi, edma and emif
文章首先結合wcdma系統性能要求提出了基帶系統所採用的方案,由asic + dsp實現rake接收機功能和dsp + dsp實現符號級處理功能;然後從總體規劃的角度設計出asic + dsp和dsp + dsp系統硬體結構,對ic2001和dsp的主要功能模塊, hi模塊, dsp片上外設hpi口、 edma和emif總線作了分析,並結合基帶處理功能開發了系統驅動;最後由信號源發出測試數據進入系統,進行功能實現后輸出數據繪制出波形圖,對所設計的基帶系統驅動方案進行驗證分析。Resting the mouse pointer over the squiggle will turn the symbol into a smart - tag panel
在將鼠標指針停留在波形曲線上時,該符號將會變成一個智能標記面板。Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制,分析了地形目標回波特性;建立了地形跟隨雷達空地測距的幾何關系;利用雷達收發信號,導出了地形跟隨雷達和差接收通道的回波信號表達式,進行了波形模擬,得到了地形跟隨雷達的地面散射產生回波在時域中的特性;根據和差回波特性,闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用,並給出了真實雷達對外輻射試驗的結果,驗證了文中的模擬。The new general signal source, represented by arbitrary wave generator, is widely used in the mordern testing field
以任意波形發生器為代表的新型通用信號源,是現代測試領域內應用最為廣泛的通用儀器之一。The apparatus, with the specialities such as miniature, automation, flexibility, and individual - computer managing has become the developing trendof the testing equipment today. based on analysis of the characteristic and the system structure of the visual instrument, the paper has studied the design idea of it, put forward the exploiting methods of the visual instrument based on the object - oriented technique, exoatiated on the technique kernel of design the visual instrument under windows environment, designed a typical visual instrument " vis - 1 signal - analyzing and wave - displaying system ", which integrates multi - function instruments such as general oscillograph and ulf oscillograph real - time signal recorder wave and frequency - pedigree analysis instrument. the system has more excellent functions and characteristics than traditional instruments
本文研究了虛擬儀器系統的設計思想,在分析虛擬儀器系統的特點及其體系結構的基礎上,提出了基於面向對象技術的虛擬儀器系統開發方法;闡述了windows環境下實現虛擬儀器的技術要點;實現了一個典型的虛擬儀器系統「 vis ? 1信號示波分析系統」 ,該系統集普通示波器、超低頻示波器、存儲示波器、瞬態信號記錄儀、波形及頻譜分析儀等多種儀器功能於一身,並具有許多傳統儀器難以達到的優越功能和性能。Although many achievements have been acquired in oled structure material, production technology, drive methods, oled technology is just at the beginning, oled has given an equal chance for every company and country, and it is very important for our country to develop displaying technology of our own. the research direction of oled is managing to improve the device lifetime, at the same time found a perfect production technological flow and the global standard production mode. it is still a arduous mission that we want to live up to a batch production of oled displays in the future some years. active matrix organic light emitting diode ( am - oled ) adopts a circuit structure based on matrix addressing, and its driving circuit includes pixel driving circuit and peripheral driving circuit
在文中,首先,分析和研究了有源oled的像素驅動電路,闡述了amoled顯示屏及其周邊驅動電路的結構和原理;其次,提出了qvga解析度的有源oled顯示屏列電極數據引線的分塊( block )方法,確定屏上驅動電路所需要的控制信號之間時序關系和幅值要求;最後,以fpga控制器的設計為核心,對外圍控制ic進行了具體設計,建立控制器電路模塊模型和演算法流程,通過quartus軟體對其內部的各個電路模塊進行綜合設計和模擬,得到了正確的模擬波形,完成了解析度為qvga ( 320 3 240 )的amoled專用驅動電路的設計。Micro - controller was programed to measure the width of engine running speed signal successively, via pdiusbd12 these measured data are transmitted to pc, according to some algorithm, for pc program to analyze, process and display angular acceleration, thus diagnose diesel engine
單片機連續採集轉速信號的脈沖寬度,同時通過pdiusbd12將採集的數據上傳到個人電腦,供電腦按照特定的演算法分析和處理,以進行角加速度波形顯示和柴油機故障診斷。The delay chip, whose delay precision can be 10ps, wide band sample - hold amplifier ( sha ), and high speed and precise analog / digital conversion ( adc ) are used in the system
能夠對5mhz以下的信號進行隨機采樣、波形顯示、頻譜分析,還能夠對採集的波形數據進行存儲、共享。分享友人