最大脈沖法 的英文怎麼說
中文拼音 [zuìdàmàichōngfǎ]
最大脈沖法
英文
maxipulse-
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。The reseach of improving the measurement precision for phase - laser measuring distance
脈沖激光測距機最大測程測試方法研究On the basis of a lot of experimental data based on the orthogonal test of pulse peak electric current, pulse width and pulse intermission, experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis
摘要用正交試驗法對電火花加工中的峰值電流、脈沖寬度、脈沖間隔進行設計，在大量實驗數據的基礎上，採用最小二乘法建立實用的多種材料的電火花加工實驗數學模型。The primary aim of the single chip microcomputer circuit of this project is data collecting, it applied the invention monopoly of professor zhang guanghui and professor peng donglin of chongqing university, make use of the high frequency inserted pulse, and join together the software to constitute subsidiary calibration distributed on equal time, complete the task of on - line subdivision in the dynamic measure process, finally up pass the data to pc, pc handle it and get examination result
下位機是硬體集成電路，利用重慶大學張光輝教授、彭東林教授的發明專利「計算機對脈沖信號的細分與辨向新方法」 ，附加頻率極高的外部插入脈沖，結合軟體構成按時間均勻分度的輔助標尺，實現動態測量過程中采樣點的實時細分，最終完成數據採集任務；上位機主要是軟體部分，利用pc機接收下位機的採集數據並進行分析處理，得出檢測結果。Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。The methods and principals of ultrashort optical pulse amplification based on single - mode fibers are reviewed, our latest research results in the field are introduced, and the future development trend of related research is discussed
摘要系統地綜述了基於單模光纖的超短光脈沖放大方法及原理，介紹了我們最近的研究結果，並對今後的發展方向進行了討論。The methods and principals of ultrashort optical pulse amplification based on single - mode fibers are reviewed, our latest research. htm results in the field are introduced, and the future development trend of related research. htm is discussed
摘要系統地綜述了基於單模光纖的超短光脈沖放大方法及原理，介紹了我們最近的研究結果，並對今後的發展方向進行了討論。Radar emits wide pulse to ensure the distance, and gets narrow pulse by using corresponding pulse compression method when receiving. this is pulse compression
脈沖壓縮是指雷達通過發射寬脈沖，保證足夠的最大作用距離，而接收時，採用相應的脈沖壓縮法獲得窄脈沖以提高距離解析度的過程。In this part, the high - frequency series inverter with resonant pole capacitor is introduced mainly. the current - exchanging processes of the inverter in different working modes are analyzed, how to reduce the switching loss is discussed, and the calculating methods of snubber capacitor c, factor angle switching frequency and pulse width pw are given in optimum switching process. and results of simulation and experiment verify the validity of theoretic analysis
接著重點研究了含有諧振極無損緩沖電容的逆變器，對其換流過程中的不同工作狀態進行分析，討論了如何減小逆變器的開關損耗，給出了最佳工作狀態下緩沖電容c 、感性角、開關頻率、觸發脈沖的脈寬pw的詳細計算方法，並通過大量的模擬和實驗波形證明了理論分析的正確性。At last, pointing to the temporal characteristics and the spectral characteristics, this paper discussed the methods for estimating the maximal line velocity ( vmax ) and the glint periods ( tp ) of the hovering helicopter, and then fulfilled the recognition of hovering helicopter using these two message. in chapter 5, the summary of all the works in the paper and related conlusions are presented, and the defects are analized at last, at last this paper demonstrated the d
最後，本文針對懸停直升機旋翼回波的時頻域特點，探討了從回波信號中提取旋翼回波最大線速度v和旋翼回波閃爍周期tp的方法，在綜合利用這兩種信息的基礎上完成了彈載高重頻脈沖多普勒體制雷達對懸停直升機回波信號的識別。Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation
措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。This paper also presents a theoretical analyzing method for the instantaneous simulation of pulsed - preionization discharge by using pspice software, it is favorable to the optimal design of the laser discharge circuit
獲得的最大的電光轉換效率達19 。本文還發展了一種採用pspice軟體對脈沖預電離放電進行瞬態模擬的理論分析方法，有利於激光器放電電路的優化設計。Using the lower and upper solutions method monotone iterative techniques, the existence of maximal and minimal solutions of first order implusive integro differential equations of mixed type are obtained
摘要利用上下解方法和單調迭代技巧，證明了一類混合型一階脈沖積分微分方程初值問題最大解和最小解的存在性。分享友人