synthetic waveform 中文意思是什麼
synthetic waveform
解釋
合成波形-
In this paper, researching and producing on current waveform control system of inverter carbon dioxide welding machine is given. the overall plan, the design of hardware structure, the programming and debugging of software is described in detail. the bang - bang and alterable structure discrete pid synthetic control algorithm are used to modulate the width of pwm signal in real time, to acquire the fiat character by driving and controlling the opening and shutting time of igbt, the technology of " double impulse " is adopted to realize electric current waveform control
本文介紹了逆變波形控制co _ 2焊機控制系統的研製，詳細闡述了總體方案的制定、硬體研製及軟體的編寫與調試，採用變結構、離散型pid + bang - bang復合控制演算法、實時調節輸出pwm信號的脈沖寬度，驅動控制用於逆變的大功率開關管igbt的開通與關斷時間，獲得逆變焊機平外特性。 -
The main work is given as follows : the stepped - frequency waveform synthesizing the wideband signal, the synthetic range profile ( srp ) by ifft, the range resolution of stepped - frequency waveform, the effect of the radial velocity on the srp, the radial velocity compensation, ambiguity function, waveform design and stepped frequency sar imaging and so on
包括：頻率步進波形合成超寬帶信號分析， ifft方法獲得目標一維距離像與距離解析度分析，徑向速度對目標距離像的影響、速度補償、頻率步進信號的模糊函數分析，以及頻率步進波形照射下的合成孔徑雷達成像、波形設計與系統設計。 -
For the unit selection strategy, we achieve candidate units for target ones by calculating target cost based on prosodic character vector. then we use viterbi algorithm to select the best synthesis path for simulation speech by calculating concatenative cost of the synthetic waveform, thus a corpus - based speech simulation system comes into being, and speech simulated by this system has the original speaker ’ s style, rather vivid
在合成單元的挑選方面，根據韻律特徵向量，通過計算目標代價獲得候選單元，根據語音合成單元串聯匹配代價，採用viterbi演算法選擇模擬語音的最佳合成路徑，從而初步實現了一個基於語料庫的語音模擬系統，該系統模擬出的語音具有原始發音人的風格，逼真度較高。 -
The probability in the probability tomography method is defined with the degree of correlation or fitting in this paper. the methods of the definitions of the scan functions and the occurrence probability functions, the electric field under the tm model and the magnetic field under the te model, are given respectively. we also have brought forward the correlation probability tomography method of magnetotelluric field - derivative and the waveform function - fitting probability tomography method, and have analysed and tested these methods in the way of the selection of the setting field and the capability of noise - standing, etc with synthetic models
本文用相關程度和擬合程度兩種概率定義方法進行概率成像，給出電磁場tm模式下的電場和te模式下的磁場概率成像方法中各自的掃描函數的定義方法和異常源的發生概率的定義原則，提出了導數場相關概率成像方法和波形函數擬合概率成像方法，並從對背景場的選擇和成像方法的抗噪性能等方面對概率成像方法進行理論分析和數值模擬實驗。 -
The waveform analytical method can he used to develop the geologic model for the carbonate reservoir in tahe field with heterogeneity and anisotropic property in its pore configuration, to research the omnidirectional feature and synthetic mechanism of seismic waveform, to gain the relations between carbonate reservoir characteristic by means of drilling and logging data, and finally to make a prediction of the growing degree of the reservoir
摘要以塔河油田碳酸鹽巖儲集層的孔隙空間結構所特有的非均質性和各向異性為出發點建立地質模型，研究波形的全方位特徵及合成機理，依據鉆井、測井等資料，建立碳酸鹽巖儲集層特徵與地震響應之間的對應關系，從而根據地震波的波形對儲集層的發育程度作出預測。 -
The effect of the radial velocity on synthetic spectrum and synthetic range profile is discussed, and the velocity compensation method is described. the ambiguity of stepped - chirp is presented and < wp = 6 > used to design the waveform. furthermore, the stepped - chirp sar system design and sar imaging are discussed
創新點在於：提出了脈內調頻脈沖串波形合成寬帶回波、獲得一維高解析度距離像的方法，給出了脈內調頻脈沖串合成孔徑雷達成像的具體步驟。
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