phase time section 中文意思是什麼
phase time section
解釋
相位時間剖面-
The basis of dynamics and simulation includes the iterative flyout angle algorithm to the solutions to lambert problem and battin ' s universal conic section state extrapolate method. then spacecraft ' s orbit roots, maneuver impulse and maneuver time are discussed as the following four part : first of all, the chaser ' s one orbit roots is selected as a variable to simulate its influence to the large scale orbital maneuver. the research reveals fact that the orbit roots both of chaser and target should be close to each other to achieve better maneuver and rendezvous " ability, moreover, the best orbit maneuver and rendezvous occurs when both chaser and target ' s initial phase angle are equal
為了研究了交會機動中追蹤器和目標器的軌道根數、機動時限和機動能耗等因素對交會機動的影響，模擬和分析分為以下四個部分:首先，研究了追蹤器軌道單個參數為變量情況下兩航天器大范圍交會機動問題，研究表明，追蹤器的變化參量與目標器相應的參量在接近的情況下可以獲得良好的交會機動特性，而對于兩航天器軌道共面的情況下，初始相位角相等時則獲得最佳的機動效果。 -
In this section, with time _ sharing method and the symmetry of sine wave, the look - up table needed to generate three - phase sine wave is reduced to one twelfth of the table before, and the optimization will have no any effect on precision, at the same time, the generation way of the monopolar spwm is improved
在這一部分，還對產生二相正弦波的正弦表進行了優化，利用分時復用和正弦波的對稱性，把所需的正弦表減少為原來的1 / 12 ，並保持優化后的精度不變。同時改進了單極性spwm的產生方法。 -
A analysis of these effect to the pattern is presented. in the mean time, the method of correcting the phase errors is given by shortening or lengthening the section of sinuous feed line between couplers from the normal value. 6. the reflection characteristic of a serpentine is analyzed where the coupler is replaced by the equivalent of two ports loss network
提出了用有耗二埠網路來等效波導耦合器的方法，對由耦合器、饋電波導和波導彎頭級聯的慢波線系統的駐波特性進行了分析計算，針對慢波線在設計測射頻率上大反射問題，討論了多種解決辦法。 -
Suggesting that the larvae of spodoptera exigua died more quickly when fb - 28 were added to the virus. the larvae of spodoptera exigua inoculated as newly molted fourth instars ( 40s ) and at various hours after molting ( 316s ), we sacrificed larvae at various time intervals after inoculation to process the larvae for lacz expression in midgut by using tissue section techniques on early phase infection
此外，對于處于不同蟲齡的幼蟲進行病毒感染時發現：對3 ~ （ 16 ）幼蟲毒力生物測定時，熒光增白劑的增效作用達到50 ，但對4齡初的供試幼蟲進行測定，熒光增白劑的增效作用卻不很明顯，僅為10 。 -
The error of each technology and revising of the error also are topics of focus. in the last section, the author presents a technical scheme of time and phase synchronization based on gps. furthermore, the maintenance of synchronization is discussed
第五章在以上基本理論和關鍵技術研究的基礎上，提出了利用gps實現雙基地雷達時間、頻率同步的系統方案，並詳細討論了同步保持的問題，對相應的指標作了進一步的分析、論證。
分享友人