整形信號 的英文怎麼說
中文拼音 [zhěngxíngxìnháo]
整形信號
英文
reshaping signal-
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。This thesis will rely on previous studies of instructions on the general rules and language functions, and modification of teacher talk to carry on a multi - layer study on junior middle school teachers " instructions with aspect of linguistic forms and language functions in chinese efl classrooms. after study on the transcriptions of 30 lectures ( 10 lectures are given by in - service teachers, 10 lectures are given by pre - service teachers and 10 lectures are given by the winners in fine - quality classroom competitions ) of efl classroom of junior middle schools in china, the major findings are : ( 1 ) the teachers likely use some devices with respect to prosody ( temporal variables ), lexis, syntax and discourse to simplify and clarify the complex instructions to match the requirement of junior middle school students " listening comprehension. ( 2 ) there are about three factors that cause the ineffective instructions
本文在前人的關于教師語言的調整,指令語及其表達功能的研究基礎上以何安平教授建立《中學英語教育語料庫( mstm ) 》中的近17 . 7萬字的子語庫《英語課堂教學語料庫( msee ) 》為研究語料,選擇了其中30節初中英語課為研究對象,對教師指令語的言語形式及其語言功能進行了較為深入的描述分析,發現: ( 1 )在音律層面,中國中學英語教師習慣川停頓來放慢語速或在一些難詞之前做停頓以便達到讓學生理解的要求:詞匯層面,教師慣用一些表達方式來給指令語;句法層面,教師也是盡量用簡單句來簡化指令語;語篇層面,初中英語課堂上教師常用一些信號詞來起始解釋性指令語,並少用宏觀語篇標記詞來幫助學生理解,但卻常用微觀語篇標記詞來吸引學生的注意力。Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit
延遲線振蕩器由寬帶放大器、可調衰減器和聲表面波質量傳感器件構成。延遲線振蕩器輸出信號經濾波后與109mhz的本機晶體振蕩器輸出信號相混頻,通過低通濾波取其差頻,並經整形後由數字信號處理電路處理。The synchronous signal of mc1311 cmos camera is shaped by monostable trigger 74ls221
使用單穩態觸發器74ls221對送給mc1311cmos攝像機的同步信號進行整形。A device used to amplify or reshape signals
一種用於信號放大或整形的設備。Biotic or abiotic stimuli can first cause the alteration in apoplastic signaling system ; on the other hand, apoplast provides a convenient pathway for cell - cell communication, and therefore plays a key role in regulation of cell differentiation, organ genesis, and growth development of plants
當植物遭受生物或非生物環境刺激時,可能首先引起質外體信號系統的變化;同時質外體作為植物細胞之間最方便的通道,在細胞間信號傳遞和信息交流上起重要作用,從而成為協調植物細胞分化、器官形成和整體生長發育的決定性因素之一。Then, according to characteristic of four kinds of butterfly operation in real number signal integer fft transform keeping modulus conjugating with symmetry, different lifting matrixes has been got and real number signal integer fft transform keeping modulus conjugating with symmetry can been achieved
然後,根據實信號保持共軛對稱性的fft整數變換中的四類蝶形運算特點分別構造不同的提升矩陣,從而實現實信號保持共軛對稱性的fft整數變換。The circuits which signals transit in, including amplifying circuit, filter circuit, export circuit, etc were placed in the same chapter
信號通路中包括信號發生放大電路、濾波電路、整形電路和輸出電路。Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique
由於電網中存在大量的諧波干擾,導致測量系統中取樣信號也含有很大的諧波,為了消除諧波對測量結果的影響,論文深入研究了傅立葉變換諧波分析法的測量原理,分析了測量中頻譜泄漏和柵欄效應形成的原因,提出了採用鎖相環倍頻技術實現信號的整周期同步采樣,消除頻譜泄漏和柵欄效應對測量結果的影響,並對鎖相環倍頻技術的理論進行了深入研究,給出鎖相環倍頻技術的實現方法。Oscillator generated a wave with frequency 132 khz as the clock signal
振蕩器電路產生一個頻率在132khz附近抖動的矩形波作為整個電路的時鐘信號。Wirings of the poly layer are always utilized under the silicon grid technics. to control the macro - cell signal delay and improve signal integrality, the crossing among different nets must be averagely distributed to reduce the number of layer permutation. the metal layer wirings should be maximized and the length of poly layer wiring in each net should be minimized
硅柵工藝晶體管級布線利用多晶層走線,為了控制宏單元時延性能及改善信號完整性形態,關鍵是不同線網間交叉的均衡分配以減少走線的換層次數,最大化金屬層走線以及每一線網多晶層走線長度的有效控制。Chapter three is about the experimental research of the real time optimal position system ( see chapter two ), emphasis on the high performances of 196mx pts interrupt response and safe design of ipm module. the analysis of perfect experimental waveforms and basic algorithm are also provided. chapter four focus on the properties and application of ekf estimator
論文第三章對點對點快速定位系統進行了實驗研究,重點介紹了196mxpts中斷系統對高速處理實時邏輯信號和消除編碼盤光電頭邊緣振蕩效應所起的作用、 ipm模塊的安全性分析設計等,同時給出了完整的實驗波形分析以及基本演算法。Take integrity of object information into condition, a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design. and simulation in the background of hf multi - object with noise is taken. a comparison of signal properties, processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal
考慮到目標信息提取的相對完整性,以高頻雷達為背景,在對多載波相位編碼脈沖串信號參數設計的基礎上,推導了三種多載頻相位編碼脈沖串信號的距離速度二維處理過程並相應的對多目標噪聲環境進行了模擬;將多載波相位編碼信號與另外兩種距離高分辨信號:單載頻相位編碼信號和相位編碼階梯跳頻信號,在信號特性、處理過程和抗噪聲特性方面進行了對比;本文從理論上為多載波相位編碼信號的波形設計和分析、信號的處理打下基礎。The main task in this design is to process the obtained electrical signals, including pulses amplifying, reshaping and intervals measuring between pulses. then, by means mentioned above, the rotating speed of the mirror can be obtained
論文的關鍵任務就是對該信號進行相關處理,包括信號的放大、整形和脈沖時間間隔計數,最終實時獲得高精度的相機反射鏡的轉速。Sigma - delta modulator, combined with oversampling, effectively attenuate the in - band quantization noise in the output signal and enhance the signal - to - noise ratio ( snr ) through the shaping of the quantization error
調制器與過采樣相結合,對量化誤差噪聲進行整形,有效衰減輸出信號的帶內量化噪聲,提高了輸出帶內信噪比( snr ) 。The total auto symbol recognition disposition method proposed in this paper can deal with the problem which converts papery of aircraft theory graphics or system graphics into vectorgraphs which can lose some useful information. furthermore, the display technique with multi - level buffer not only resolves the problem of high - speed for aircraft theory graphics or system graphics in cbt, but also ensures scrolling and zooming in / out smoothly and avoids the flashing phenomenon efficiently
目前紙質的飛機系統圖、原理圖矢量化方法用基本的矢量圖元按其位置來再現原始圖,從而導致矢量后圖中各符號整體信息丟失問題,該文提出的自動符號識別方法可有效地解決該問題,此外改進多級緩沖顯示技術不但可有效地解決cbt中系統圖、飛機原理圖的快速顯示,而且也保證圖形可連續光滑滾動和消除放縮拖動時屏幕閃爍現象。Vecon - con system is triggered by 4 infra - red sensors along the selected lanes with 2 in pairs. false trigger by wind shield and container - type trucks are dalian yaowan phase ii screened out and the system captures and recognizes container numbers, country codes, iso codes automatically in less than 0. 012 seconds from trigger till image capture. the captured images are transmitted to the tos for processing which enhances efficiency and ensures security while maintaining manpower at the minimal
Vecon - con透過四個紅外線對射敏應觸發器進行觸發,兩個一組並列于車道上,具備防止集裝箱型卡車大型集裝箱車拖頭等誤觸發,系統接收到觸發信號后,自動抓拍集裝箱號碼國家代碼箱形代碼,抓拍的圖像會被傳送到碼頭控制系統中心進行后臺處理,該系統由觸發到抓拍只需不多於0 . 012秒,整個系統大大提高了口岸工作效率,並減低了人力物力的耗用,為港口碼頭的管理提供了更加高效可靠的處理手段。It realizes the functions of storing and transferring the information of fire alarm, displaying time, scanning keyboards, the safe maintenance of system and so on. the part of wireless communication is controlled by at89c2051 mcu, mainly realizing transmitting and receiving data between controller and other detectors. the external signals received by a wireless module are transmitted to mcu through shaping circuit, and the signals of mcu are transmitted by a wireless module through tone modulation circuit
人機交互部分以單片機c8051f020為核心,為用戶提供一個良好的操作環境,實現了火災報警信息的存儲及調用、時間的顯示、鍵盤的掃描、系統的安全維護等功能;無線通信部分由單片機at89c2051來控制,主要實現控制器與其它探測裝置之間信號的無線發射和接收,無線通訊模塊接收到的外部信號經過整形電路送入單片機,單片機發出的信號經過音頻調制再由無線通訊模塊發送出去,這樣實現了數據的無線傳輸;本文還從節能的角度出發,兼顧性能的可靠性,提出了一種合理的無線火災報警的信息傳輸模式。Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology
數字音頻功放技術是近年發展起來的高效率音頻放大技術,該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率,而且能高指標地放大包絡信號,是常規的電源調制技術無法實現的。We have successfully designed an experiment system for the no invasion blood pressure measurement with our own ip. in our research and develop task we have done a lot work to study foreign instrumen and design ideas. this experiment system is based on msp430 series mpu with excellent erformance and applies advanced digital signal process and intelligent technology. in hardware design, the following means were applied : after a lot of experment and fully knowing about the characteristic of the pulse wave signal, we have designed the accurate and credible circuit to collect the pulse wave signal ; power circuit, communicaion circuit, power drivers circuit have been disigned for the instrument. in software design, the following arithmetic were applied : 1
軟體方面進行了以下演算法研究: 1 .綜合試驗各種數字信號處理方法對波形進行平滑處理: 2 .採用lms自適應方法對脈搏波信號進行了降噪處理; 3 .應用微分閉值法提高了脈搏波信號的檢出率,有效識別了運動干擾引起的偽波信號; 4 .利用測振法基本原理並進行大量實驗的基礎上,提出了比較準確可行的收縮壓和舒張壓的識別演算法,使測振法在本無創血壓儀中得到了完整而充分的應用。分享友人