混合信號源 的英文怎麼說

中文拼音 [húngěxìnháoyuán]
混合信號源 英文
mixed source
  • 混 : 混形容詞1. （渾濁） muddy; turbid2. （糊塗; 不明事理） foolish; stupid
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 混合 : （攙雜在一起） mix; blend; mingle; admix; mixture; mix up; interfusion; commixture; blending; cre...
  1. Voltage reference is a vital basic module which is widely adopted in analog circuits ( mixed signal circuits ). its temperature stability and antinoise capability influence the precision and performance of the whole system

    電壓基準源是模擬電路（混合信號電路）設計中廣泛採用的一個關鍵的基本模塊，它的溫度穩定性以及抗噪性能影響著整個電路系統的精度和性能。
  2. Secondly, according to the character of this kind of harmonic, the solutions of power filter are deeply analyzed and an optimized topology for series connected hybrid power filter is obtained. by pwm technique, midfrequency transformer and the principle of the magnetomotive force ( mmf ) compensation, the problem to the transfer of the low - frequency harmonic power compensatory signal in the series apf is solved, in technique

    其次，針對acem系統特有的「電源諧波」特性，深入分析了濾波器方案，得到了一種適用於acem系統諧波抑制的串聯混合型有源電力濾波器優化拓撲結構，並採用了pwm調制技術、中頻注入變壓器和磁勢補償原理有效地解決了串聯apf中低頻諧波功率補償信號傳輸的難題。
  3. The circuit is used in high resolution resistance measuring. the coupled chaotic circuit array composed of this circuit is researched by computer simulation and circuit experiment. results show that, it is feasible to improve the stability of orders of chaotic systems and reduce noise in measuring by coupling

    最後，對以這種單電源驅動的混沌電路為基本單元所構成的耦合混沌陣列在提高系統輸出的穩定性和抑制噪聲作用方面，進行了計算機模擬研究和實際的電路實驗研究，結果顯示通過耦合的方式，可以將信號檢測的精度提高近一個數量級。
  4. Moreover, some elementary research on bse has been done, the extraction condition was discussed and the results show that bse can solve singular linear mixture problems to some extent. finally an algorithm for multi - sources blind extraction based on information theory was studied

    匆此外，本文還對盲信號提取（ bse ）做了初步研究，對盲信號提取的條件進行了探討，結果表明bse對解決奇異線性混合有一定效果，最後基於信息論準則研究了多源信號的提取演算法。
  5. Then the paper analyzes control system of hybrid active power filter, the way of harmonic detecting and the principle of control system, digital low pass filter and the generation of pwm, on the base of which the paper designs a new parallel hybrid active power filter which is controlled by tms320lf2407, and detailedly introduces drive circuit of pwm, sampling circuit of current, voltage adjustment and protection circuit, communication circuit, liquid crystal display circuit

    分析了混合型有源濾波器的控制系統、諧波檢測方法及控制原理、數字低通濾波器和pwm信號的產生，在此基礎上設計了一種基於tms320lf2407為控制核心的並聯混合型有源電力濾波器硬體原理圖。並對pwm驅動電路、電流采樣電路、電壓調整、按鍵輸入和保護電路、通信模塊、液晶顯示模塊進行了較詳細的分析說明。
  6. 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。
  7. In practical studies, finally, a hybrid active power filter based on the digital signal processor ( dsp ) and intelligent power module ( ipm ) was set up, including a cycloconverter acem. based on the experimental set - up, plenty of experimental studies were conducted. the experimental results demonstrate that the self - adaptive technique, the topology of series connected hybrid power filter and the corresponding significant technologies described above are feasible and practical

    最後，實際研製了一套以dsp （高速數字信號處理器）和ipm （智能功率模塊）為核心的小功率混合型有源濾波裝置，在交交變頻acem實驗平臺上進行了全面的實驗研究，充分驗證了本文所提出的自適應同步相關濾波技術、優化混合型濾波器拓撲結構和有關的關鍵性技術的正確性和實用性，從而從理論到實踐全方位、成功地實現了對交流勵磁發電機輸出電力諧波抑制的研究。
  8. Blind signal separation is a new technique of signal processing aimed at retrieving a system ' s unknown information from its output only, which can be used in array processing and data analysis

    盲信號分離技術是信號處理中用於陣列處理和數據分析的一種新的技術，在源信號和混合過程未知情況下，從混合信號中分離出源信號。
  9. Fortune semiconductor corp. ( fsc ), founded in 1995, positioned as an ic - supplier in the field of mixed signal processing technology, whose products ' main application fields are battery management, power management, electronic scales, digital multimeters, health - care products, and energy utilization measurement

    富晶半導體股份有限公司成立於1995年，定位在混合信號處理技術領域的ic供應商，產品主要應用領域為電池管理、電源管理、電子秤、耳溫槍、多用途電表、健康保健、能源量測等。
  10. In the paper, the design of the real - time test system for crystal parameters is presented. the signal generator of sweep frequency based on dds device ad9852, the signal measuring circuit based on gain and phase detector ad8302, and the real - time control and deal circuit based on tms320vc5416 and the design of high - speed printed digital & analog circuit board are discussed in details

    本文闡述了晶振實時測量系統的設計，介紹了以dds晶元ad9852為核心的掃頻信號源電路，以增益相位檢測器ad8302為核心的信號檢測電路，以dsp晶元tms320vc5416為核心的實時控制與運算電路，以及高速數模混合電路板的設計方法。
  11. The preamplifier will drive a low impedance load without alteration in the signal, in fact it can be used as a current source driving a 0 impedance mixer junction without any distortion

    這個前級放大器能夠驅動一個低阻抗的負載而不會引起信號的變化，實際上它可以用作一個驅動零阻抗混合節點，而又不產生任何失真的電流源。
  12. The commonest type of power supply noise is swishing noise

    精密混合信號電路中最好別用開關電源。
  13. Bss problems are to separate or extract individual source signal from a set of mixture signals. except that the source signals are assumed to be independent, no apriori information is known about the mixture signals

    Bss問題是從某類混合信號序列中分離或估計各個未知源信號的過程，其中假設源信號是相互統計獨立的。
  14. Blind source separation ( bss ) problem is to separate or extract individual source signal from a set of mixed signals, assuming the source signals are independent and no a - prior information is known about the mixed signals

    盲源分離問題是從某類混合信號序列中分離或提取出各個未知源信號的過程，其中假設源信號是相互統計獨立的，人們對混合信號的信息完全未知。
  15. Blind source separation is to separate sources from mixed signals, without knowing about the characters of the sources and how they are mixed, only assuming that the sources are independent with each other. blind source separation is a part of blind signal processing

    盲分離是指在不知道源信號的特徵，而且也不知道信號在傳輸通道中的混合過程，只假設源信號是相互統計獨立的情況下，從觀測信號中分離出源信號的技術。
  16. Independent component analysis ( ica ) is a new multi - dimensional signal processing technology developed from blind source separation of late years. some scholars have brought forward a new polarimetric speckle reduction method by using independent component analysis which based on the multi - polarimetric trait of polarimetric sar and the independence between speckle and texture of sar imagery. while the algorithm thinks that there is only one real scene in polarimetric sar source images, so they get only one recovering image in the procedure of image separation and lose polarimetric property

    獨立分量分析是近年來由盲源分離技術發展來的一種新的多維數字信號處理技術，通過計算數據的高階統計信息，可以僅從觀測信號中估計出互不相關且盡可能相互統計獨立的被未知因素混合的原始信號的估計信號，從而幫助實現信號的增強和分析。
  17. Based on the information theory, the algorithms such as maximum entropy and minimum mutual information have been presented by researchers in the area of signal processing, which are usually applied to solve bss problems

    由於關于混合信號的信息完全未知，因此將該過程稱為盲源信號分離。目前國內外主要採用基於信息論原理的最大嫡、最小互信息量來解決bss問題。
  18. Since a pseudo - covariance matrix of the observed signals supply additional constraints if the sources are assumed to be independent and improper, it can be proved that the second order statistics is sufficient to separate the mixed complex - value signals for both stationary and non - stationary sources

    假設源信號是獨立的且非常態，信號的偽協方差矩陣能增加約束條件，從而可證明二階統計量能夠完全分離復值混合信號，而且對信號是否平穩不作要求。
  19. Finally we study a modified algorithm, which applies the fast fixed - point algorithm for complex signals to blind signals eparation in frequency domain. it ’ s a one - unit algorithm. to prevent converging to the same signal, the deflation algorithm is used to separate signals one by one

    4 .結合上述卷積混合信號的頻域分離演算法，研究了一個改進單源演算法，將復數快速固定點演算法應用到頻域加速收斂，為了防止演算法收斂于同一信號，利用一種抽氣技術，這樣可一次分離出一個信號，實現卷積混合信號分離。
  20. Two common defects are founded in bss algorithms based on independent component analysis ( ica ) : the selection of none - linear function ( nlf ) in ica depends on the kurtosis of original signals, which degrades the performance of separation seriously when the observed signals are the mixture of super - gaussian and sub - gaussian signals

    2 .對一些現在流行的基於獨立分量分析的盲分離演算法進行深入研究后，發現其存在以下兩點共同缺陷:由於演算法中非線性函數的選取依賴于源信號的峭度性質，當觀測信號為超高斯和亞高斯混合信號時，分離演算法性能急劇下降。
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