波能利用系統 的英文怎麼說
中文拼音 [bōnénglìyòngxìtǒng]
波能利用系統
英文
wave energy recovery system- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 能 : 能名詞(姓氏) a surname
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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Technique of transmitting data via power line ( pl ) , a new technique developed in recent years , is used to automatize the free collecting system in public service and the management of uptown service 。 this article discussed the advantage , disadvantage and the current state of the power line carrier communication 。 the advantage , method and current state of using spread spectrum technique in power line communication are discussed 。 then the characteristic of low voltage power network was also compendious analyzed 。 in this paper , after introducing the principle of ssc , design of hardware and software of the system are been discussed 。 this system has been put into use , the result has proved its high stability and reliability
本文研究旨在提供一種利用低壓電力供電網路、低成本、高可靠地實現公共事業收費自動化和小區物業管理智能化的技術應用。討論了電力線載波通信的優、缺點及現狀,擴頻技術在電力線載波通信應用的優點、方式和現狀,並對低壓電力線網路的特性進行了簡單的分析。在闡述了擴頻通信的基本原理的基礎上,本文詳細地介紹了電力載波遠程抄表系統的具體實現,包括硬體模塊和管理軟體本系統已投入運行,具有較高的穩定性和可靠性。At the same time the influence of the cavity in front of slow - wave structure and the length of a smooth drift tube which connect two sections of slow - wave structure are also studied in this dissertation
然後利用magic粒子模擬軟體模擬了反射器對器件工作性能的影響,同時還分析了慢波系統前面的腔體以及兩段式慢波結構中過渡段的長度對器件工作性能的影響。Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal
我的思路是:改造現有圖形結構,先建立能反映信噪比大小且含待定參數k的表達式,然後通過離散型h0pfi舊單層反饋神經網路,再結合前邊的混合濾波器構成一個非線性控制系統,寫出對應的網路函數,利用相平面法和李雅普諾大穩定性的判據,得到一個穩定的極限環,從而確定出參數卜的范圍,進而再對原來的小波軟閾值進行修正,用修正後的值作為小波閾值。Government ' s monopoly of capital market also leaded to the " shell " value of listed company which is irrelative to the company ' s invest value, which made the higher general price in the market. in addition to, the structure of investors which is consisting of many individual investors and few institution investors lets it easy to manipulate the stock market for the institution investors. according to the origins of the systematic risk, it is necessary to improve the market mechanism and market efficiency to eliminate the system root of the risk to decrease the risks
突出地表現在:資本市場服務于國企轉制,造成上市公司股權結構存在缺陷,致使公司治理失效,上市公司缺乏持續發展的能力,公司經營風險轉化為市場的系統性風險;政府對資本市場準入的行政性壟斷,形成上市公司「殼」價值,虛高股票市場價格,引發系統性風險;金融市場分割,特別是貨幣市場資金缺乏進入資本市場的正常渠道,利率市場化水平低,影響金融資產定價,導致違規融資盛行,加大了市場風險;而由於市場監管不到位,以散戶為主的投資主體結構,則易導致機構大戶利用內幕信息操縱股價,機構投資者的發展不僅沒有成為穩定市場的力量,反而成為操縱市場的主力,加劇了市場波動。This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。The fuzzy control strategy is used for short period prediction of the microwave power and a fuzzy pid controller is used to control the trigger angle of silicon controlled rectifier ( scr )
利用硬體超調自動保護電路和模糊pid控制技術對醫用微波治療儀功率控制系統進行了設計,並簡要介紹了該儀器的原理及功能。It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules
概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現,利用該晶元的資源,實現各模塊的調度,完成對導航電文的提取,重新組幀,定位解算以及對外介面;在解算部分,把載波相位定位與碼測距定位相結合,利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試,以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic
在多向不規則波入射波方向譜和反射系數的分析研究中,利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列,將此合成波列分別應用mbdm和mmlm進行分析,通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子,檢驗了mbdm和mmlm方法的適用條件,對兩種分析方法的性能進行了比較分析。By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion
由此得出結論,在非線性磁場計算中:採用迭代法的情況下,在各迭代循環之間進行磁導率修正時,一個欠鬆弛迭代過程是必需的;對永磁體中的等效電流修正時可以不作欠鬆弛迭代;在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值,會使得插值求出的磁導率在該磁飽和值附近有一突變,這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中,由於微波管磁路比較復雜,作者認為磁體的工作點並不能很好地反映磁體的工作狀態,而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況;要表示磁系統設計好壞的程度,則用磁能利用的效率為標準更好。Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts
從第二代電流傳輸器ccii入手,重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法,主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器(兩個cdba )的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬(信號流圖法)和反饋設計(跳耦法) 。The amplitude fluctuation and according system performance degradation induced by xpm is also studied through numerical simulation. the timing jitter caused by xpm can also have great impact on system performance. by employing lagrangian variational method and statistical method, the timing jitter caused by xpm in strong dispersion managed rz systems is studied in chapter 3
通過模擬也研究了波分復用系統中由於交叉相位調制效應引起的幅度抖動從而導致系統性能的惡化;交叉相位調制引起的時間抖動對系統性能也有較大影響,利用拉格朗日變分方法和統計分析的方法,第三章討論了強色散管理歸零碼系統中交叉相位調制引起的時間抖動。In this paper, on the basis of increasingly mature fabrication technologies of planar integrated waveguide and the optical fiber grating, we make use of not only the ( de ) multiplexing and wavelength router characteristic of arrayed waveguide grating ( awg ), but also the dispersion peculiarity of uniform fiber bragg grating ( ufbg ). then a kind of dispersion compensator, which can compensate the dispersion of the optic signal in every channel in the wdm system respectively, is devised. the method makes the compensation efficiency maximum theoretically
本文結合近幾年來日益成熟起來的平面集成波導製作工藝和光纖光柵製作技術,利用陣列波導光柵( awg )的復用特性和波長路由選擇特性與均勻光纖光柵( ufbg )的色散特性,提出了一種能對wdm系統中各分波光信號分別進行有針對性色散補償的補償器件,該器件使wdm系統中各分波光信號所得到的色散補償在理論上達到很高效率。Before more advanced lithography tool is produced, in order to use current tools to manufacture vdsm ic, reticle correction methods such as perturbing the shape ( via optical proximity correction ( opc ) ) or the phase ( via phase - shifting masks ( psm ) ) of transmitting aperture in the reticle are proposed by the industry
在波長更小的光刻系統出現前,為了能利用現有設備解決集成電路的可製造性問題,工業界提出了對掩模作預失真(光學鄰近校正)和在掩模上加相位轉移模(移相掩模)等的掩模校正方法。By fpga optimization technology the card can be more integration and portability. using oscillograph principle the dissertation designs a set of digital memory oscillograph system implementing pre trigger, center trigger and after post trigger
本文結合示波器原理自主研發了一套數字存儲示波器控制系統,並利用該系統實現了示波器常用的前觸發、預觸發和后觸發3種觸發功能。With the development of communication, information and electronic technology and computer network, intelligent transport system ( its ) is paid more and more emphasis, it contains many parts, such as vehicle type recognition and license plate recognition. in this paper, we introduce svm to the field of its, the main work is described as follows : ( 1 ) we summarize the latest research achievements and development of its, present the conceptions of slt and the principles of svm ; ( 2 ) taking the traffic sign as examples and adopting hough transform in the stage of feature extraction, we introduce svm to the problem of shape recognition and compare the experimental results with traditional learning methods. ( 3 ) then we use svm to settle the vehicle type recognition problem, where we utilize the wavelet analysis and mathematical morphology method to extract the figure feature
本文將支持向量機引入智能交通系統領域,主要進行的工作如下: ( 1 )整理總結了國內外學術界關于統計學習理論方面的研究成果,介紹統計學習理論的基本概念和支持向量機的基本原理; ( 2 )在形狀識別問題中以交通標志圖像作為實驗對象,利用hough變換進行特徵提取,在識別階段利用支持向量機方法進行分類,並與神經網路等傳統學習方法對比; ( 3 )將支持向量機應用於車型識別問題中,針對收費站採集的汽車圖像,首先採用小波分析和數學形態學的方法提取其外形特徵,在識別階段利用支持向量機方法進行分類,並與其他傳統學習方法進行了對比; ( 4 )將支持向量機應用於車牌識別問題中,車牌識別包括車牌定位、車牌字元分割以及字元識別三個步驟,先採用數學形態學方法對車牌區域進行定位,然後採用top - hat變換等方法分割車牌字元,在識別階段採用支持向量機演算法進行字元識別,取得了較為滿意的結果。Based on the advanced and popular portable instrument ’ s kernel technology along with the embedded operational system such as windowsce system platform, aiming at human ’ s biomedical signal ? measure of blood pressure parameter, with the msp430 microprocessor which has powerful ability of transaction and achievement the real - time data pick and process. on up - computer, using platform builder tool customizing the windows ce platform using the vc programming language finishing the application software to multi - parameter monitor, the whole system achieving the data ’ s sample, real time disposal, analysis, display, store and communication of biomedical signal and imitate the system
整個應用系統基於目前流行的便攜式儀器的核心技術- windowsce系統平臺,針對人體的生物醫學信號(血壓參數的測量) ,運用處理能力強大的msp430單片機對實時數據進行採集、處理,在上位機部分用platformbuilder工具定製了windowsce平臺,利用vc語言編寫了多參數監護儀的應用軟體,在數據採集、處理模塊中,針對血壓脈搏波這種生物醫學信號特點,合理運用msp430單片機硬體資源及其功能特性對採集的數據進行有效的數據濾波處理,得到了有效的血壓生理參數。Abstract : the threshold algorithm of the target detection is often used to detect target echo signals. its performance is based on signals - noise ratio. when signals - noise ratio is great than 6. 7, the target can be detected. in order to increase the signals - noise ratio, matching filter is often used. if the system is narrow band system, the noise is color noise and matching filter cannot be used. therefore, the signals - noise ratio cannot be increased. however, the geometrical characteristic of the laser echo signal is different with the noise. this paper advises the algorithm that detects the target by the geometrical characteristic. when signals - noise ratio is great than 2, this algorithm can detect target. this algorithm has been used in practice
文摘:目標檢測的閾值法經常用於檢測目標的回波信號.它的性能取決于信噪比,當信噪比大於6 . 7時,能夠檢測出目標.為了提高信噪比,經常採用匹配濾波器.如果系統是窄帶系統,噪聲為色噪聲,無法使用匹配濾波器,不能提高信噪比.激光回波信號的幾何特徵不同於噪聲.提出了一種利用這種幾何特徵檢測目標的演算法.當信噪比大於2時,該演算法能夠檢測出目標.該演算法已經實際應用The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection
應用功率譜估計方法討論了故障高頻暫態噪聲信號在頻率軸上的分佈情況,利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻暫態信號的衰減特性。論文的後半部分(第五,六,七章)著重分析了現有基於故障電流的暫態保護原理和判據存在的問題,提出了新的實現方案,並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據,可以準確區分故障線路和非故障線路,實現超高速暫態電流保護,計算更為簡單方便,計算速度更快。After introducing characteristic and hardware structure of dsp, 1 decide to adopt current excellent performance integrate dsp and its tap system ; after i know this, this paper present a software and hardware scheme which is based on fault signal " data acquisition and processing by using advanced dsp technology, and in arithmetic aspect, a dsp based real - time digital filter comes true. this simplifies the system design and improves the stability and real - time property of data acquisition. adopting a dsp integrate plank ( including a dsp cmos chip and external storages ) and using software to manage and prepare entire system can improve greatly the extension, maintenance and common of the application system
在闡述了dsp的硬體結構及特點之後,結合本課題的研究方向,本文決定採用目前最高性能的dsp集成板及其開發系統,並在了解此集成板的硬體結構和開發環境的基礎上,提出了利用先進的dsp技術來實現故障信號的採集與處理的軟硬設計方案,並從演算法方面實現了dsp的實時數字濾波,簡化了測試系統的設計,提高了測試儀器的實時性;而採用dsp板卡(上面含有一個dsp晶元及外存) ,通過軟體對整個系統進行調配和管理,可以極大地提高應用系統的可擴展件、可維護件及通用性。The properties of the wavelet networks are analyzed. according to the approximation ability of wavelet networks, the nonlinear static system and the nonlinear dynamic system can be identified
分析了小波網路的性能,利用小波網路的非線性函數逼近能力,對非線性靜態系統和非線性動態系統進行辨識。分享友人