濾波能力 的英文怎麼說
中文拼音 [lǜbōnénglì]
濾波能力
英文
filter capacity-
In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits
論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。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 if digital receiver based on software radio technology adopts the structure of fpga plus dsp, which is more powerful than other systems in signal processing, and is able to complete iq demodulation accurately and acquire characteristic of the signal. the following four aspects is included :
該中頻數字接收機以軟體無線電思想為核心，採用dsp + fpga的硬體結構，在信號處理能力方面比以往的系統有了很大的提高，能夠精確的完成信號正交解調和抽取濾波和特徵信息的提取。When high - bandwidth star sensor measurements are available, according to the singer tracking model, the full angular acceleration is modeled as a first order markov process while the use of the attitude dynamics is totally avoided
在能夠獲得高頻星敏感器測量的情況下，針對模型不確定問題，提出了一種基於singer模型的新的濾波演算法，把角加速度建模為一階馬爾科夫過程，從而避免了使用姿態動力學模型。The digital audio processors tas300x series produced by ti have powerful ability to handle the audio. this paper introduces the method of designing the eq filter while introduce the digital audio processors tas300x series. about the control of the system, i2c bus and the msp430 mcu are introduced
德州儀器公司（ ti ）出品的專用dsp數字音頻處理器tas300x系列，有著強大的音頻處理能力，性價比很高，本文在簡介tas300x系列數字音頻處理器的同時，還介紹了數字均衡濾波器的設計方法。Skj ( jjw ) series of ac purifying regulated power supply, incorporating functions of regulation and auti - inter ference, designed and muters, xerox, video equipments, medical instrmments and other electr onicinstrmmerts and autocontrol systems for is wide vange of regulating, high precicion, quickacting, high effciency, small itcan restrain restrain sharp voltageand protect from moise of electric power net
系列進精密凈化電源是當今國際上普遍採用的現代電源調節技術，配以大容量濾波器與集成化控制系統構成；它具有如下特點：可靠性好、效率高、優良的動（瞬）態，體積小、重量輕、噪音低、負載適應能力強；適用於對電源要求較高的儀器或設備。On the base of a systematical analysis about the theory of mathematical morphology and neural network, we present that the two methods have many complementary aspects : mathematical morphology has good filtering characteristic, but has not good adaptability and study ability from samples ; neural network has outstanding properties of self - organizing and self - adapting, but has not good filtering characteristic of mathematical morphology
本文在分析了數學形態學理論和神經網路理論的基礎上，指出了兩者在信息處理中具有很強的互補性：數學形態學具有良好的濾波特性，但適應性差，不具備從圖像樣本中進行學習的能力；神經網路具有很強的自組織和自適應性，卻沒有數學形態學良好的濾波性能。By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper
課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。In hardware, we choose anti - disturbance photoelectric isolative sensor, take rc filter to resolve high - frequency for anti - disturbance. in software, we adopt arithmetic of recursion mean value to collective signal values to resolve low - frequency ac and pinnacle pulse disturbance
在硬體方面，選用抗干擾能力強的光電隔離電量傳感器，並採取rc濾波抗干擾措施解決中高頻干擾問題；在軟體方面，對採集到的信號量採取遞推平均值演算法，解決低頻交流和尖峰脈沖干擾問題。Using piezoresistive accelerometers and magnetoresistance sensors measure the dynamic acceleration and geomagnetic field and through avr mcu software to calculate the attitude angular and azimuth. the fact of affecting the module is discussed in detail in this report and put forward the resolving scheme of key technology of digital filter, linear compensation, temperature compensation and magnetic field adjustment. the digital module has advantages of small size, light weight, low conception, high accuracy, all solid state and high reliability
本課題採用壓阻式加速度計和磁阻傳感器分別測量重力加速度和地磁場，通過avrmcu軟體解算出姿態角和方位角，課題詳細分析了影響模塊性能指標的因素，就數字濾波、線性補償、溫度補償、磁場修正等關鍵的技術問題提出了可行的解決方案，研製的數字化模塊具有體積小、重量輕、低功耗、精度高、全固態、高可靠等特點，所有性能指標均滿足設計要求，為姿態角測量提供了有效的手段。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。Digital to analog converter, analog integrated filter, bandgap reference and high drive capability operational amplifier are indispensability basic circuit of communication system
數模轉換器、模擬集成濾波器、基準電壓源和高驅動能力運放等電路是通信系統中不可缺少的基本電路。To improve anti - jamming technique by spread spectrum close to monochromatic frequency, so that enhance the ability of anti - active - jamming and anti - passive - jamming, anti reconnaissance, anti - radiation missile, anti - stealth, by means of multi frequency spread spectrum and hopping spectrum instead of mono - frequency spread spectrum, realizing strong processing system for anti - interference signal, providing the method of generating of chirp signal and corresponding matched filter system
摘要為改進線性調頻雷達系統所採用的在單色頻率點附近擴譜抗干擾技術，加強制導雷達站具備抗有源、無源干擾，反偵察，抗硬殺傷的反幅射導彈和反隱身的能力，通過將單頻點擴譜改為多頻點擴譜跳譜，實現了高抗干擾信號處理系統，給出方案中在中頻段實現的線性調頻信號產生方法以及對應的匹配濾波處理系統。There is a great market demand to utilize the active power filters ( apf ) to reduce the harmonics of the power system and improve the power quality in china
伴隨著我國電能質量問題治理工作的深入開展，利用有源電力濾波器（ activepowerfilter ，縮寫為apf ）進行諧波治理將會具有巨大的市場應用潛力。Secondly : i choose a non - linear filter named hybrid filter which combines linear and nonlinear filters is proposed for print gray image, it performs better than average fil ters and median filters on noise reduction. while retaining edges of an image. i suggest a modified version and fast implementation of this filter improve its performance. because of its reduced computation complexity, this filter excels in real - time tasks
因為噪聲時常包含非線性問題，針對這種情況，既要抑制噪聲，又要保護圖像邊緣，本文採用一從度指紋圖像上噪處理研究種基於線性，非線性的混合濾波器演算法，該演算法比均值濾彼器，中值加權濾波器，格形濾波器，具有更好的抑制噪聲的能力，不但較好的保持圖像地邊緣，而且能反映圖像的幾何結構和細節特性。Radio induction is mainly studied in this paper, the traditional radio induction technology has simple structure, lower cost, convenient maintenance and higher location resolution and measuring velocity, but its anti - interference is lower. new radio induction system is proposed in this paper, it has excellent anti - radiated interference of any frequency ( it should be declared specially that it includes the anti - interference of the same frequency ) ; because of its hi gh frequency - pass function, the new radio induction system has less affection excited by the conductive interference
本論文提出的新型無線感應系統對外界所有頻段上輻射干擾（特別強調的是包括同頻干擾）具有較理想的抗干擾能力；由於新型無線感應系統起高通濾波作用，傳導干擾對它的影響可以忽略，因此新型無線感應系統具有較理想的抗干擾能力，用在定位測速中具有比傳統無線感應技術高2個數量級的精度。The working principle, the method to calculate the ratio of transformation and algorithm of filtering capacity are also studied in this paper
本文分析了其工作原理，變壓器變比的確定方法，濾波能力計算方法。It analyses the working principle of the novel reactive power compensator, the relationship of currents in stable states, algorithm of filtering capacity and transient process
本文分析了這種反饋式無功補償方案的工作原理，穩態下各電流之間的關系，變壓器變比的確定方法，濾波能力和暫態過程。It is shown that regression models are fewer latent variables and more stable by using osc method. the number of latent variables of nicotine model is reduced from 7 to 3 ; and the number of latent variables total - sugar is reduced from 6 to 3. at the same time, we also found that osc is more excellent when it is applied on complex powder system than simple system
結果表明在保證模型預測能力的同時， osc校正法極強的濾波能力降低模型的復雜度，也即煙草煙堿模型主因子數從7減少為3 ，煙草總糖模型主因子數從6減少為3 ，四元混合體系液體樣品中甲苯預測模型主因子數從4減少為3 。Based on the analysis of the paper, we can draw the conclusion that this device has several issues to be solved to put into use, such as low filtering capacity, large bulk and area the device occupies, complexity of connection, and the hazard of ferro - resonance existing when switching without disconnecting the circuit of the step - up transformer
經過分析發現，這種補償方案存在一些問題，如濾波能力低，補償裝置體積大，佔地面積多，接線復雜；並且如果在投切過程中不將升壓變壓器高壓側迴路斷開，存在著發生鐵磁諧振的危險。分享友人