組合濾波器 的英文怎麼說

中文拼音 []
組合濾波器 英文
combining filter
  • : Ⅰ名詞1 (由不多的人員組成的單位) group 2 (姓氏) a surname Ⅱ動詞(組織) organize; form Ⅲ量詞(...
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 動詞(除去液體雜質) filter; strain
  • : 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...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 組合 : 1 (組織成為整體) make up; compose; constitute 2 (組織起來的整體) association; combination3 [...
  • 濾波器 : [電子學] electric filter; (electric) wave filter; filter
  1. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下: 1 、採用以輸出信噪比最大為準則的最佳匹配來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號,然後對一維分段相關輸出作縱向傅立葉變換來除靜態或低速的雜、多徑回等干擾信號,並提取目標的時差和多普勒頻率,再結由天線獲得的目標方向等參數,就可以實現目標的定位和跟蹤。
  2. A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector

    通過與大華無線電廠作,研製了超高頻傳感,其主要由天線、超高頻放大、高通、寬帶檢成。
  3. The problem discussed in this paper is to separate two ( or more ) input signals from observed signals which are generated by passing input signals through diffrent unknown multi - input multi - output linear systems. it is proved that the input signals can be separated when they are independent identitically distributed ( i. i. d ) signals. a new algorithm for multi - input multi - output blind deconvolution via maximum entropy is presented which needs no information about the input signals and mixing filters

    本文研究的問題是從觀察信號中分離出兩個(或者更多個)輸入信號,其中每一信號分別通過不同的未知多輸入多輸出線性系統.本文證明了當輸入信號是兩兩相互獨立的獨立同分佈信號時可以分離出輸入信號,並導出了基於最大熵的多輸入多輸出盲解卷新演算法.這個演算法不需要任何關于輸入信號和混的先驗知識
  4. Abstract : in this paper a new identification model constructed by neural networks with modified inputs and stable filters is presented for continuous time nonlinear systems in order to reduce the inherent network approximation errors. an adaptive law with projection algorithm is employed to adjust the parameters of networks. under certain conditions, convergence of the identification error is proved

    文摘:在用神經網路進行系統建模時,建模誤差的存在是難免的.為了減小這種誤差,本文對連續時間非線性系統提出了一種新的神經網路辨識模型,它是由帶有輸入修正的神經網路和穩定而成.文中給出了權值的學習演算法,即權值是根據辨識誤差的投影演算法來改變,證明了在一定條件下辨識誤差的收斂性
  5. Three parallel - parallel type cttfcs is studied and compared in this paper. the performance of the cttfc with coupled inductor is similar to that with sharing freewheeling diode while coupling coefficient is one, and similar to that with sharing output capcitor while coupling coefficient is less than one and the converter working ccm

    揭示了耦電感並?並型雙管正激變換與其餘兩種並?並型變換的關系:耦系數為1時,具有與共用續流管變換相類似的特性;耦系數小於1且耦線圈電流連續時,具有與共用輸出變換相一致的特性。
  6. In structure, there is no need of using a substrate with high dielectric constant to reduce the filter size, and it is suitable to be buried into the substrate and thus easy to integrate with other sub - modules to form a single, miniaturized, multifunction module

    結構上,不需要使用高介電常數的介質來降低尺寸,並且適于埋入介質層內與其他次模成單一、微小化之多功能模
  7. Fini air treatment systems for industry are composed of refrigerating dryers, filters for separating impurities, condensate drain cocks, water - oil separators, tanks and all other components necessary for adapting the compressor room to your needs

    工業用的fini空氣處理系統由冷藏乾燥成,專用於壓縮機房的空壓機由分開雜質,排水閥,水油分離,氣罐和全部必要的其他零部件等適你的需要。
  8. By simplifying the adc system, a specific kind of high effective hybrid filter banks adc system is proposed too

    將高效混adc系統進一步簡化,作者還提出了一種專用高效混adc系統。
  9. Linear phase prqmf banks is one of focal points in multirate digital signal processing domain, its general pr condition is deduced mathematically in the paper, which is important for further studying its design method, in addition high speed hybrid filter banks adc system, high effective hybrid filter banks adc system and high - speed - and - resolution time interleaved adc system proposed in the paper have practical value

    線性相位prqmf是當今多速率數字信號處理領域的研究熱點之一,本文從理論上推導出了其理想重建的一般規律,這對進一步研究線性相位prqmf設計理論有重要意義。此外,本文提出的高速混adc系統、高效混adc系統、高速高解析度時問交織adc系統,均具有實用價值。
  10. On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former

    作者提出了一種基於帶通采樣定理的抽取數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的抽取,進而根據無線電射頻信號頻譜的特點,提出了高效混adc系統,其數字信號輸出速率比高速混adc系統降低m - 1倍。
  11. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmfadc系統的頻響、量化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論分析研究,所得到的理論結果為: ( 1 )混adc系統與開關電容adc系統的失真/混迭函數一致; ( 2 )無論輸入寬帶還是窄帶信號,這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特; ( 3 )這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。
  12. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸,作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的sha抽取,進而在混adc系統的基礎上,提出了高速混adc系統。
  13. This paper include the following parts. firstly the sine exciting - voltage is guaranteed by direct digital synthesize technology ; secondly the digital output of cos ( 9 ) and sin ( 9 ) are generated by microcontroller ; thirdly the two voltage signals which are the product of the two former signals gained by the multiplying d / a converter, being filtered and amplified, have constant frequency, and one amplitude has sine function relationship of with the input angle, and the other amplitude has cosine function relationship of with the input angle ; finally the two signals are acquired and analyzed by relative instrument and software

    主要由以下幾部分成:用數字頻率成技術( dds )產生正弦激勵電壓信號u _ msin ( t ) ;用單片機產生幅度的數字量輸出sin ( )和cos ( ) ;用乘法型d a轉換實現激勵電壓和幅度的乘積,並通過和功放后即得到頻率固定,幅值隨輸入角成正餘弦變化的電壓信號;最後用數據採集卡採集輸出信號,顯示形並進行頻譜分析。
  14. Afterwards, in order to decrease the contradiction between the more complex and mass remote sensing image data and relatively slow speed of information extraction, an improved sfim image fusion method is proposed. this modified algorithm is on the base of sfim fusion technique, combines ihs method and sfim method and then replaces the former mean filter by an adaptive weighted mean filter. compared with the results of several common fusion techniques through a set of simulation tests between multispectral images and panchromatic images, it is proved that the new method can get an excellent result for the aim of improving spatial resolution while preserving the spectral information of multispectral images

    論文的主要工作和成果包括:在像素層,論文研究了多傳感數據融理論及遙感圖像預處理的過程和步驟,歸納了多源遙感圖像像素層融的常用演算法,並針對目前遙感數據呈海量化、復雜化這一發展趨勢同遙感信息提取的能力和效率滯后這一矛盾,在sfim演算法的基礎上,將ihs變換與sfim相結,將原演算法中的均值改進為自適應加權均值,提出了一種改進的sfim演算法,通過對一多光譜圖像和全色圖像的雙傳感模擬對比試驗,證明了該演算法在保持原多光譜圖像光譜信息的同時,能夠有效提高融圖像的空間分辨能力。
  15. The method that increases the attitude accuracy of strapdown inertial attitude and heading reference system ( siahrs ) with the infromation from inertial measurement unit ( imu ) its own is studied. according to the design idea of damping network in platform type, damping kalman filter in siahrs is designed to enhance the attitude accuracy via integrating attitude calculated by common siahrs and that estimated by accelerometers. in order to evaluate the effectiveness of damping attitude, the vehicle ' s movement should be detected in real - time. for this reason, the state chi - square test is employed in the damping kalman filter, and the failure detection vector are tested, which improves the sensitivity and reliability of failure detection. finally, static and dynamic experiments of actual system demonstrate the effectiveness of the proposed method

    本文探討了如何利用慣性測量本身的信息來提高捷聯航姿系統的姿態精度.根據平臺式阻尼網路的思想,設計了捷聯式內阻尼卡爾曼,將慣導系統捷聯解算獲得的姿態與加速度計估計的姿態進行,在系統非加速度狀態下,提高了姿態輸出的精度.為了實時監測系統的運動狀態從而判斷內阻尼姿態的有效性,本文成功將狀態2檢驗法應用在內阻尼卡爾曼中,設計了基於2個狀態傳播的故障監測,並通過對故障檢測向量元素的檢驗代替對整個向量的檢驗,提高了故障監測的靈敏度和可靠性.最後,實際系統的動靜態實驗驗證了本文所提出的方法的有效性
  16. Then this paper introduced the main method in multi - sensor integrated navigation - kalman filtering method, and a two - level optimization multi - sensor information fusion structure - combined filter which was originated by carlson and kerr, based on the structure of combined filter, it studied the method of navigating by the multi - sensor navigation system integrated by ins milemeter altimeter and piloting, then analyzed the effect of several filters. simulation proved that when altimeter were integrated, the height error was reduced a lot, and the combined filter is more effective than one - level kalman filter

    然後,介紹了導航中的關鍵技術? ?卡爾曼方法,以及一種二級最優多傳感結構? ? carlson , kerr等人提出的聯,並以聯的結構為基礎研究了車載捷聯慣導系統與里程計、氣壓高度計、地標導航的方法,比較了幾種方法的效果。模擬結果表明,引入氣壓高度計可以有效的減小高度誤差,二級聯的效果優於一級結構的卡爾曼
  17. It is a powerful way to improve the cost performance ratio by integrating several kinds of navigation systems. the sins / casp / tans integrated guidance system has been researched, including constructing models of subsystems and integrated system, designing the federated filter, analysising the fusion scheme with the inconsistent subsystems. also a simple algorithm for the federated kalman filter is presented

    3 、研究了捷聯慣導北斗星地形輔助系統的實現問題,建立了各子系統及系統的模型方程;設計了系統聯;研究了子系統不同維情況下的兩種方案;提出了一種簡化演算法;對實現中的具體問題進行了探討,並給出了相應的解決方案。
  18. Methods in space / frequency domain : a group of gabor filters are used in texture - based image retrieval ; by analyzing how the energy changes with the decomposing of wavelet, tree - structured wavelet transform in texture - based image retrieval is selected to use. as for similarity measurement of texture - based image retrieval, this paper demonstrates two data models related to the similarity measurement and proposes two kinds of multi - feature combination structures

    在空間頻域聯的方法中,將構造的一gabor用於圖象紋理檢索;通過分析紋理圖象經過小分解后的能量變化特點,提出了選用樹型小分解方法用於紋理檢索,提高了檢索的有效性。
  19. At first, the concept of perfect reconstrution of input signal from the view of filter banks and wavelet transform are introduced, . and then the analysis / synthesis system is analyzed in time domain, third, the kalman filter is explained, finally, a multirate kalman synthesis filter and multirate kalman filterirng algorithm are intruduced to achieve optimal reconstruction of the input signal with the consideraion of the subband noises. simulation results show that the performance improvement of signal reconstruction in noisy filter bank system is remarkble

    本文從和子變換兩個方面闡述了分析/綜系統及其對輸入信號完全重構的概念;研究了考慮子帶噪聲條件下,基於的多抽樣率分析/綜成系統對輸入信號的最佳重構問題。實現了用多抽樣率卡爾曼綜取代常規的綜達到對輸入信號的最佳重構。
  20. The first step is to get the floating value by integrating the integer ambiguity of gps carrier signal as a state variable with ins. the second step is to get the fix value by integral filter algorithm. thirdly, the methods for detecting and compensating the cycle slip are researched

    其次研究了載信號整周模糊度求解演算法問題,提出了一種新的求解方法,即把整周模糊度作為狀態變量通過與慣導的得到模糊度的浮動解,然後利用組合濾波器快速演算法來實現整周模糊度的求解。
分享友人