高度編碼器 的英文怎麼說
中文拼音 [gāodùbiānmǎqì]
高度編碼器
英文
altimeter coder- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 編 : Ⅰ動詞1 (編織) weave; plait; braid 2 (組織; 排列) make a list; arrange in a list; organize; gr...
- 碼 : Ⅰ名詞(表示數目的符號或用具) a sign or object indicating number; code Ⅱ量詞1 (指一件事或一類的...
- 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
- 高度 : altitudeheightelevation
- 編碼器 : (將一項信息變換成一系列數碼信號的電路) coder; encoder; encipheror編碼器方框圖 encoder block diagram
- 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
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Operate highy exactly and credibly even without encoder
即使不用編碼器encoder也能實現高精度高信賴度之運轉。The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way
藉助虛擬儀器的思想,對測控系統進行了設計:採用光柵尺、光電編碼器測量可動部件的運動量,解析度高、誤差小;採用細分驅動的步進電機裝置,控制性能好;系統實施環境溫度的檢測、補償,提高了檢測精度;基於兩級微機組建測控系統:主機為人機界面,採用windows編程,從機用dos編程,實時性好;軟體設計採用兼容性和移植性好的模塊式結構,便於二次開發。The design for the code salver of the encoder uses new encoding technology, which makes it easy to produce and figure simpler
在編碼器的碼盤設計上採用了一種全新的絕對編碼技術(文中稱為簡碼) ,利用這種編碼技術製作的碼盤圖形簡單,製作方便,精度高。Lower inertia, lower yawp and high precision are the virtues of optical rotary encoders
光電編碼器具有低慣量、低噪聲、高精度和高解析度等優點。Digital absolute shaft encoder provides the accurate car positioning, with which the high efficient direct arrival being got, base on distance principle, as well as the perfect comfort ability and leveling accuracy
運用絕對值編碼器,按距離原則的高效直接停靠,實現了超乎尋常的舒適感和平層精確度。In this paper, the common used encoding algorithms and basic finite - field opera - tions algorithms are introduced, and the decoding algorithms such as inverse - free ber - lekamp - massey ( ibm ) algorithm, reformulated inverse - free berlekamp - massey ( ribm ) algorithm and modified euclidean algorithm are analyzed in great detail. based on the ribm algorithm, a modified structure and a pipelined decoder scheme are presented. a tradeoff has been made between the hardware complexities and decoding latency, thus this scheme gains significant improvement in hardware complexity and maximum fre - quency
本文簡要介紹了有限域基本運算的演算法和常用的rs編碼演算法,詳細分析了改進后的euclid演算法和改進后的bm演算法,針對改進后的bm演算法提出了一種流水線結構的譯碼器實現方案並改進了該演算法的實現結構,在譯碼器復雜度和譯碼延時上作了折衷,降低了譯碼器的復雜度並提高了譯碼器的最高工作頻率。In improved uep scheme, the syntax elements belonged to luminance parts and chrominance parts was reassigned to different data partitions. those packets containing syntax elements belonged to luminance parts were got error protection at high level so as to guarantee their correctness during transmitting in error - prone network. simulation has shown that using proposed scheme, the packing tradeoff is decreased 8240 bytes in error - free channel and also the output bits and bit rate of coded video stream are decreased 2. 70kbits and 0. 33 kbps respectively
模擬實驗表明,本方案能在無噪通道中有效降低編碼器端8240位元組的打包開銷和2 . 70kbit的輸出比特數以及0 . 33kbps的比特率,而在有噪通道中可使解碼輸出重構視頻圖像的視覺質量得到一定程度的提高,亮度分量峰值信噪比可增加近1db 。This has brought heavy computation burden when it is applied to compress the hdtv high definition television content. based on the original ffsbm fast full search blocking matching, this paper proposes an improved ffsbm algorithm to adaptively reduce the complexity of motion estimation according to the actual motion intensity. the main idea of the proposed algorithm is to use the statistical distribution of mvd motion vector difference
為了提高壓縮效率, avs採取了可變塊大小的運動補償技術,一個宏塊可以被進一步劃分為四種塊大小, 16x16 , 16x8 , 8x16 , 8x8 ,這樣一個16x16的宏塊中總共會被劃分成9個不同的分區,每個分區獨自地進行運動估計,這使得運動估計成為了avs編碼器中復雜度最高的一部分。It realizes high - accuracy test of angle position and real - time control, and satisfies the needs of some fields for high - accuracy and high resolution absolute photoelectric rotary encoders, such as snare science automation and national defense construction, etc
因此可實現角位置的高精度檢測與實時控制,從而滿足空間科學、自動化和國防建設等領域對高精度、高解析度絕對式光電軸角編碼器的需要。The distributed plc system of the floodgate ' s opening measuring presented by the paper has many advantages such as high reliable operation, high measuring precision, having the network communication function, convenient installation and correction, etc. this thesis further studies the key device for the floodgate ' s opening measuring, the rotary encoder, selects the absolute rotary encoder adopting the binary cyclic code, studies the method for transforming the cyclic code to the binary data and according to the transforming formula designs the ladder diagram program
本論文研製的分散式plc閘門開度測量系統具有工作可靠、測量精度高、具有聯網通信功能、安裝和校正方便等特點。本論文深入研究了閘門開度檢測的關鍵器件? ?旋轉編碼器,選用了採用二進制循環碼編碼的絕對式旋轉編碼器,研究了將二進制循環碼轉換為二進制數的方法,根據轉換公式設計了plc的梯形圖轉換程序。Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device
目前,隨著計算機技術和電子技術的飛速發展, i / o設備介面控制技術領域有了長足進步。其中, pci介面成為主流的微機標準介面,而與操作系統平臺的發展相適應, wdm已成為業界普遍採用的驅動程序模式;同時,在傳感器應用方面,高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者,而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求,課題期間研製了下位機系統硬體和軟體,開發了上位機監控軟體,其中所作的具體工作包括:測量原理的研究和在系統中的實現,在本次設計中用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控晶元的選擇,我們選用了高集成度的混合信號系統級晶元c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在單片機內的運算;高集成度16位模數轉換晶元ad7705在系統中的應用,我們完成了它與單片機的介面設計及程序編制任務;精確時鐘晶元ds1302在系統中的應用,在此,我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬,該晶元的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測,該部分的實現是通過採用ad421晶元來完成的,本設計中完成了ad421與單片機的spi介面任務,協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。Abstract : regarding the practical problems in applications of photoelectric encoder and the solutions a detecting method for displacement with higher accuracy and the implementing circuit are stated and designed. with the control of underdrived robot arm as an example the concrete application is introduced
文摘:就光電編碼器的實際應用問題及解決方法,提出並設計了一套適用於精度要求較高的位移檢測方法及實現電路,文末以欠驅動機器臂的控制為例,介紹其具體應用。We select fpga of type xc3s200 as hardware to design the coder and display the hardware resources inside, moreover study the method and steps of designing dsp, based on fpga, by using system generator, finally, it emphasizes the design process of multi - band excitation vocoder. we can work out the module of high pass filter and the module of low pass filter, module of divide frame, module of keynote rough estimate, module of keynote fine estimate, module of band - separated v / u judgment / verdict and module of band - separated amplitude estimate, by using simulink, ise and system generator
本文選用型號為xc3s200的fpga作為設計編碼器的核心硬體,介紹了其內部所含的硬體資源,並研究了利用systemgenerator基於fpga設計dsp的方法和步驟,最後,本文把重點放在多帶激勵語音編碼器的設計上,利用simulink , ise和systemgenerator分別設計其中的高通低通濾波器模塊、分幀疊加模塊、基音粗估模塊、基音精細估計模塊、分帶v / u判決模塊、分帶幅度估計模塊。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。Reinforcement learning algorithms that use cerebellar model articulation controller ( cmac ) are studied to estimate the optimal value function of markov decision processes ( mdps ) with continuous states and discrete actions. the state discretization for mdps using sarsa - learning algorithms based on cmac networks and direct gradient rules is analyzed. two new coding methods for cmac neural networks are proposed so that the learning efficiency of cmac - based direct gradient learning algorithms can be improved
在求解離散行為空間markov決策過程( mdp )最優策略的增強學習演算法研究方面,研究了小腦模型關節控制器( cmac )在mdp行為值函數逼近中的應用,分析了基於cmac的直接梯度演算法對mdp狀態空間離散化的特點,研究了兩種改進的cmac編碼結構,即:非鄰接重疊編碼和變尺度編碼,以提高直接梯度學習演算法的收斂速度和泛化性能。In order to get a higher precision, a late - model 23 - digit angle coder is designed. this angle coder acts as the feedback sensor for velocity and position
為提高測速精度,本文設計了一種新型23位角編碼器,作為速度和位置反饋傳感器。The signal is interpolated to 1024 parts by single - chip computer, this acquires high interpolation times, and the resolution and the accuracy of absolute photoelectric rotaiy encoder are improved as well
經單片機軟體細分,可獲得較高的細分倍數,進而提高了絕對式光電軸角編碼器的解析度和精度。It is difficultly to enhance the resolution of encoders if commonly depending on thinner engraving grating. therefore, at present, the primary technology to improve the encoders " resolution is the interpolation technology of the moire stripe signal
由於單純依靠製造上刻劃更細的光柵來提高光電軸角編碼器的解析度是很難實現的,目前普遍採用光電信號細分技術來提高光柵系統的精度和解析度。Simulation has shown that the proposed scheme can achieve more accurately in similarity examination than scheme which proposed by [ 102 ]. so the bit number of coded video stream was decreased about 22. 95 percent and thus the compression ratio was improved. although the coding cost was increased about 8. 25 percent by using proposed scheme
模擬實驗表明,與文獻[ 102 ]方案相比,提出的方案雖然增加了約8 . 25的編碼器編碼耗時,卻有效提高了對視頻序列突變幀的檢測精度,從而進一步降低編碼器端輸出編碼視頻流的比特數達22 . 95左右,在基本不影響重構視頻信息視覺質量的同時提高了編碼器的壓縮效率。分享友人