相移環行器 的英文怎麼說
中文拼音 [xiāngyíhuánhángqì]
相移環行器
英文
phase shift circulator- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 移 : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
- 環 : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
- 行 : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
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Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影( dsa )成像系統的組成結構和數據流向進行了深入研究和分析,並對系統中的數據流向進行了完整的歸納和總結,給出了x線數字成像系統中的高速大容量數據通道的設計方案;在對sdram的控制方式做了深入探討后,給出了實現大容量多條sdram共同工作的解決方案,在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲;通過對pci總線介面的深入研究,優化後端狀態機設計和低層驅動程序開發,給出了完整的pci介面方案實現高速dma數據傳輸,完全可以滿足視頻傳輸要求;深入研究了基於大規模可編程器件的數字系統設計方法,針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點,提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案,從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。Critical circuits in developing this board, such as tht modulation circuit, demodulation circuit, pll and filter, were analyzed in detail. parameters adopted in these circuits were also calculated. based on all that mentioned above, a rf board was implemented and related tests and experiments were successfully done as well
本文主要對cdpd移動終端數據機的硬體開發中的關鍵部分?高頻部分電路進行了研究,論文在cdpdv1 . 1規范的基礎上,提出了射頻部分電路的實現方案,選擇了合適的核心晶元,並對電路中的調制解調電路、鎖相環、濾波器等關鍵模塊進行了較為詳細的分析,對電路中的有關參數進行了計算。In order to improve the quality of the voltage signals, this paper has adopted the scheme of three phases and six organs in signal - generator part, which can eliminate the errors caused by the assembly warp and the zero shift of organs. this paper also has analyzed the distribution and varying rules of the magnetic field in the signal - generator part, then based on the conclusion of the analysis improved the structure of signal - generator, which could completely eliminate the noise signal caused by the roughness of the face on the magnetic steel ring. the improvement not only met the requirement of this study, but established the theory foundation for the super - high precision magnetic encoder in future research
因此,為提高原始電壓信號的質量,本文採用三相六元件的信號發生方案,通過差分處理濾除了由於裝配偏差和零點漂移帶來的信號誤差;本文對編碼器信號發生結構進行了磁場分析,依據磁場分析的結論對編碼器常用的信號發生結構進行了改進,改進后的結構利用積分原理在理論上能夠完全消除信號中由磁鋼環表面粗糙度引起的信號噪聲,進一步提高了信號質量,此結構不僅滿足了本課題的需要,而且為今後研製超高精度的磁電式編碼器奠定了理論基礎。On the basis of investigation and synthesis of the relative theory and key technology on the topological structure of locomotion, control system architecture, maneuverability, trafficability, the integration of exact mechanical engineering, net - based communication and sensor technology, an innovative robot with reconfiguration and biomimetic characteristics has been developed for 863 program of china ? study on autonomous navigation system for intelligence mobile robot in unknown environment
本文針對「未知環境中自主工作智能移動機器人導航系統研究」的國家863項目,在綜述國內外關于移動機器人走行部拓撲結構、控制體系、機動性和通過性等移動機器人的相關理論和關鍵技術的基礎上,綜合利用精密機械、網路通信、傳感技術等學科的技術,研製開發出一種多機動模式可重構移動機器人。Main achievements in this thesis are : one, by thoroughly studying the original ocean - bottom re - positioning software and corresponding algorithm, the author replant the original software from unix workstation to the ms windows environment with vc + + 6. 0 and visual fortran 6. 0 co - programming technique. two, the corresponding algorithm about picking up the first - arrivals and relocating of geophones are studied and realized
對原海底檢波器二次定位軟體進行了全面細致的研究剖析,並對其相關原理進行了較深入的研究,利用visualc ~ ( + + )與visualfortran語言混合編程技術,將原來基於unix工作站環境的海底檢波器二次定位軟體移植到了微機環境下的mswindows平臺上。The basic operation principle of phase - locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper. the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply. the research is emphased on the theory and design method of circuits in the sampling phase - locked frequency synthesizer. then, the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits. at last, the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling - holder. the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product
本文系統的闡述了鎖相頻率合成器的基本工作原理及電路類型;較深入地分析了取樣鑒相工作原理及電路、鎖相環路的線性跟蹤特性和相位噪聲特性;重點對取樣鎖相頻率合成器電路理論和設計方法進行了研究;為了改善環路的捕獲性能,對擴捕電路進行了分析和設計,並用wewb32軟體對電路進行了模擬;考慮到取樣保持器的附加相移影響,對環路濾波器進行了分析和設計。By using phase shifting control between right bridge leg and left bridge leg, the output cy cloconverter commutating while the bi - polarity three - state high frequency ac volage from the input cycloconveter is zero, . and commutation overlap of the output cycloconverter and polarity selection of the input voltage, the leakage inductance energy and the output filtering inductance current are naturally commutated, and zvs switching of the output cycloconverter are realized, the surge voltage and surge current of the output cycloconverters are overcome
通過輸入周波變換器右橋臂相對左橋臂的移相,讓輸出周波變換器功率開關在輸入周波變換器輸出的高頻交流電壓為零期間進行換流,並藉助輸出周波變換器換流重疊和輸入電壓極性選擇,從而實現了變壓器漏感能量和輸出濾波電感電流的自然換流、輸出周波變換器的zvs開關,解決了輸出周波變換器固有的電壓過沖和環流問題。The twelve kinds of modes and equivalent circuits of this inverter with high frequency link within one high frequency switching period are carefully analyzed ; by using the state - space averaging approach, the inverter ’ s averaging model is presented, and the design criterion of key circuit parameters and the output characteristic curve are given ; the analyses of the system stabilization and the mathematic analyzes of the principle of high - frequency - link of this inverter have also be done. prototypes for 1kva 270v 10 % dc / 115v400hzac uni - polarity phase shifting controlled bi - directional voltage mode inverter with high frequency link is designed
以全橋橋式拓撲為例,論述了雙向電壓源型高頻環節逆變器單極性移相控制的原理、逆變器在一個高頻開關周期內的十二個工作模式及其等效電路;採用狀態空間平均法建立了逆變器平均模型,獲得了這類逆變器的關鍵電路參數的設計準則和外特性曲線;分析了系統穩定性,並對逆變器高頻環節原理進行了數學分析。Input pulse signal can be directly transformed into micro - step linear motion by use of linear pulse motor, which have found wide applications in the digital linear servo systems with high positional accuracy and high reliability. taking slpmu - 025a, a two - phase hybrid lpm manufacturing by shinko motor company ltd, as an specimen, the study on the drive control system is carried out in this thesis, which contains : ( l ) three kinds of drive circuits are designed and comparison analysis in theory is done ; ( 2 ) introduction to at89c51 microchip as controller and special micro - step constant current driver, a great variety of running modes driver control are developed ; ( 3 ) experimental testing and theoretical analysis of current waveforms and displacement graphs and velocity graphs are carried out in case of different micro - step constant current driver
本文以日本神鋼電機株式會社生產的兩相混合式直線脈沖電機slpmu - 025a為樣機,對直線脈沖電機的驅動控制系統進行了研究,內容包括: ( 1 )設計了幾種直線脈沖電機驅動器電路,從理論上進行了對比分析研究; ( 2 )用at89c51單片機作為控制器,採用專用的恆流細分驅動器sh ? 2h057m ,實現了開環控制方式下對slpmu ? 025a樣機各種運行方式的驅動控制; ( 3 )對不同細分數下恆流驅動的電流波形以及各種運行方式下的位移圖、速度圖進行了實驗測試和理論分析研究。Abstract : the single toroidal non - reciprocal ferrite phase shifter that isthe key components of a phase array antenna is studied to develop the phase array antenna for autotracking synchronous communication satellite
文摘:為了研製自動跟蹤同步通信衛星平板相控天線陣系統,對相控陣天線中的關鍵元件單環非互易鐵氧體移相器進行了研究。The transcendental equation for the single toroidal non - reciprocal ferrite phase shifter is obtained by using the twin slab model, and its properties are discussed
利用雙平板模型推導出了單環非互易鐵氧體移相器的超越方程,並對其特性進行了討論。The differential phase shift changes as the change in the thickness of the ferrite phase shifter is calculated with the transcendental equation
根據超越方程對單環非互易鐵氧體移相器的差相移隨鐵氧體厚度的變化進行了數值計算。It is presented that the theory and the manufacturing technology of such analog phase shifter, which are made from conventional 3db quadrature hybrids coupler with two identical varactor - diode networks to provide a shifted phase that varies continuously with biased dc voltage. several analog phase shifters have been made for different operating frequencies. each phase shifter has phase range more than 180, return loss better than - 20db, insertion loss 4. 8db including 3db attenuator, transmission difference less than0. 075 db. computer code phases. bas can present the referenced component values
介紹了利用鐵氧體磁環製作窄帶3db耦合器的原理和方法,詳細分析了利用此耦合器設計製作模擬壓控移相器的理論和製作技巧,以及所製作的多種頻率的壓控移相器的測試技術指標和實際運行情況。A signal - generated scheme that is used in high solution ac source is presented based on the reasonable usage of system source. by discussing the methods of counter - output, pll ( phase - locked loop ) - output and dds ( direct digital synthesization ) - output, dds - based dummy - space method is brought out and it converts the time problem into space, improves the resolution of both frequency and phase - shift
通過對計數器輸出法、基於鎖相環單片機合成及基於dds ( directdigitalsynthesization )的單片機合成幾種方法的討論,引出一種基於dds的虛擬空間法,將時間上所面臨的問題轉化到內存空間上進行處理,極大地提高了交流電源的調頻、移相精度。分享友人