wide pulse modulation 中文意思是什麼
wide pulse modulation
解釋
寬脈沖調制- wide : adj （opp narrow）1 寬闊的。 2 廣闊的，廣大的，寬敞的。3 廣博的；范圍廣大的；廣泛的。4 遠離的；（...
- pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
- modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
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Unlike inverters for general purpose, auxiliary inverters of subway vehicle have the characters of high power, wide range of high dc input voltage, entirely sealed electronic units and natural cooling. single pulse width modulation ( pwm ) technology is found to be optimal by comparing several different high power inverter technologies and is utilized in the 2 - channel staircase inverter discussed in this thesis
針對地鐵車輛輔助逆變電源的大功率、直流側輸入電壓高且變化范圍寬、輸出電壓穩定且波形質量高，電子部件全密封且要求自然冷卻的特點，分析比較了幾種大功率逆變器技術方案，選擇單邊脈寬調制階梯波合成逆變器為研究對象。 -
Except, the error model of orthogonal modulation and double frequency technology were studied. third, the design and implementation of ultra wide band lfm generator were studied. an ultra wide band lfm pulse compression signal generator with 400mhz carrier and 300mhz absolute bandwidth was developed successful
?第三部分在理論分析的基礎上對超寬帶lfm信號源系統的設計和實現技術進行研究，成功研製出了中心頻率為400mhz ，帶寬為300mhz ，重復頻率為1khz ，脈寬為20 s的線性調頻信號。
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