致偏失真 的英文怎麼說
中文拼音 [zhìpiānshīzhēn]
致偏失真
英文
deflection distortion-
The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊，當開關管接收控制信號脈沖列（經調制的spwm波列）導通時，在低頻調制信號的正半周或負半周內，施加在變壓器繞組上的是同一方向的電壓，變壓器磁芯中的磁通可能將級進地逐漸增加，導致磁芯飽和，造成磁偏或單向磁化，導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。They will choose their action as a “ rational economic person ”, so it ’ s easy for government interest to make departure and encroach on the pulic interest, which leads to the misplay and misdirection of public policy. it ’ s also in violation of the principle of equity and justness. the existence of the government interest is inevitable
在現實生活中，由於政府利益的客觀存在，以及政策制定者也會按照「理性經濟人」的思維方式選擇自己的行動方式，所以還是會出現政府利益的錯位和偏離現象，導致公共政策的失誤、失真甚至誤導，影響公共政策質量和效率，甚至嚴重違背了政策的公平、公正原則。On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution
文中主要研究了電離層的三種影響：信號經過電離層傳播的群延遲引起的成像偏移；電離層的色散效應給線性調頻信號帶來二次相位誤差，導致圖像退化、失真；以及電離層的閃爍、湍流等不規則性引起的信號相位起伏。在此基礎上，比較分析了不同波段、帶寬條件下電離層的影響。
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