造波器 的英文怎麼說
中文拼音 [zàobōqì]
造波器
英文
wave machine-
Major products and services of the company cover satellite communication equipment, mobile communication products, hf communication system, ctv sets, personal digital entertainment products, electronics manufacturing, instruments and meters, production equipment, software services and system integration
公司主要產品和服務包括：衛星通信設備移動通信設備短波通信設備彩電個人數碼娛樂產品電子製造儀器儀表大生產裝備軟體服務系統集成等。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。However, the h - bridge maglev chopper has serious switching losses, so as to have snubber circuit ; there is high emi with the chopper
然而， h -橋斬波器開關損耗大，需要添加緩沖網路，電磁干擾十分嚴重;對供電電源有反向電流沖擊，容易造成供電電源和濾波電容的損壞。In addition, a low - pass filter can be employed prior to the digital - to - analog ( d / a ) stage to smooth the stairstep effect resulting from the combination of a low sampling rate and quantization
另外，在數模轉換（ d / a ）級前用低通濾波器可以平滑因低的抽樣頻率和量化造成的階梯效應。Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core. the speech codec optimizes g. 729a codes and added voice activity detection of g. 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information. but only get the frequency information is not enough in cpt detector, this thesis introduces a method
其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求，並在此基礎上加入g . 729b的靜音檢測模塊，以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法，通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計，信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號，信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計，除了類似雙音多頻的信號發生及頻率檢測設計外，還需要檢測信號持續時間，作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。In the texts of electrical circuits and electronics they will also show how to build simple filter circuits using op - amp
在電路和電子技術的文獻中可以找到如何用運算放大器構造簡單的濾波器。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。A linear filter is adopted in the system to obviate the measurement of angle acceleration and to achieve the closed - loop speed control
系統實現時，構造了一個線性濾波器以避免轉子角加速度的測量，同時實現了轉速的閉環跟蹤。The innovations consist of : synthetically restraining the filter ' s divergence, as effectively improved the filter ' s numerical stability ; a parallel filter structure is creatively designed to eliminate system biases ; and sprt method is used to control the adjustment of the noise statistics, so as to ameliorate the tracking performance of time - variant noises
對常規的次優遞推sage自適應濾波器進行了改造，包括：對濾波結果發散進行綜合抑制，提高了濾波器的數值穩定性；採用并行結構，消除了結果偏差；應用sprt控制調整，增強了濾波器的動態跟蹤能力。The corrugated tank made of high quality cold - rolled - steel sheet manufactured with special production line. it can swell up or shrink compensating the oil from atmosphere. protect and delay the oil and the insulation against degradation, therefore enhance the operation reliability and free of maintenance under normal conditions
全密封變壓器與普通油浸式變壓器相比，取消了儲油櫃，由波紋油箱的波翅代替油管作為冷卻散熱元件，波紋油箱由優質冷軋薄鋼板在專用生產線上製造，波翅可以隨變壓器油體積的脹縮而脹縮，從而使變壓器內部與大氣隔絕，防止和減緩油層的劣化和絕緣受潮，增強運行可靠性，正常運行免維護。In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面，由於zno具有很大的機電耦合系數，而aln的聲表面波傳播速度較高，因此若zno和aln相結合，則不僅具有大的機電耦合系數，而且具有很高的聲表面波速度，這非常適合於製造高頻聲表面波器件。The 3 - probe array is used to separate the incoming and reflecting waves and to adjust the wave generating signal, so this technique can effectively absorb the wave components reflected by a test structure and thus prevent them from being re - reflected back towards the wave paddle
該法在造波板前1 2倍波長處布置3個傳感器，通過入反射波分離方法得到準確的入反射波參數，以此調整造波信號，有效地吸收由建築物反射回到造波板的二次反射波。We have made a full theoretical analysis of the wave property and the wave parameters of the flap - type wave generator in the towing tank of our school, and confirmed that should make the factor that the performance of the wave generator give play to normally to influence. in allusion to that the old wave generator can not simulate sea wave, upgrade and transform to this system change the control computer system and install additional d / a change card, redesign the wave control interface and transmission means of control signal, give up the disk machine that can not be used, make the wave - making control voltage signal that has translated direct input the wave controller, make wave controller to make waves through servo system
對我校船模水池原有的搖板式造波系統的性能進行了理論分析，針對水池原有造波機系統模擬海浪的不足，對該系統進行升級與改造，更換了主控計算機並加裝d a轉換卡，重新設計了造波控制信號的介面與傳輸方式，捨去了原系統中現已淘汰的磁盤機，使轉換后的造波控制電壓信號直接輸入到造波控制器中，再由造波控制器通過液壓伺服系統驅動造波板進行造波。In order to better detect the image edge information, firstly, non ? linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filter, and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately
在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。In order to better detect the image edge information, firstly, non - linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filters and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately
在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。Order components were extracted in time domain by constructing weighting least square adaptive filter
通過構造加權最小二乘自適應濾波器，實現了各階比成分在時域中提取。Filters, couplers and baluns are fabricated in the high frequency passive device integration regions
濾波器、耦合器和平衡非平衡阻抗轉換器系製造在高頻被動元件整合區域內。Based on the design methods above, we research the possibilities of build nonuniform filter banks with linear phase in the third part, pointing out the difficulties may occur and bringing up our ideas
第三部分，我們在上述兩種子帶濾波器組設計方法的基礎上，探討了構造非均勻的線性相位濾波器組的可能性，指出了存在的困難，提出了構造的設想。It has broad application prospect in the following fields such as microelectronics, photoelectronic devices, large screen flat panel display, field emitter array, acoustic surface wave device, photon crystal, light waveguide array, holographic honeycomb lens and micro - optical element array, micro - structure manufacture, fabrication of large area grating and grid of high resolution, photoresist performance testing, profile measurement and metrology, etc. the paper only involves the primary research of interferometric lithography
在微電子、光電子器件、大屏幕平板顯示器、場發射器陣列、表面聲波器件、光子晶體、光波導陣列、全息透鏡和微光學元件陣列、微結構製造，高分辨、大面積光柵和網格製造，在抗蝕劑性能測試、面形測量和計量等領域，干涉光刻技術都具有廣闊的應用前景。At last, the experiment result proved the effectiveness of the spectrum rebuilding technology. the experiment result show that the wavelength detection accuracy is improved by an order of magnitude using the spectrum rebuilding technology compared with that obtained from direct peak search. some other schemes to enhance the accuracy are illustrated
最後列舉了其它幾種提高測量精度的方案，包括關鍵器件可調諧濾波器的位置變化提高信噪比，調整探測器pinfet的輸出電壓的零點以提高a / d採集卡的利用率，以及採用系統參考消除系統誤差造成的波長漂移。分享友人