A Perl module implementing receiver-operator-Characteristic (ROC) curves with nonparametric confidence bounds
標(biāo)簽： receiver-operator-Characteristic nonparametric implementing module
上傳時(shí)間： 2016-01-05
上傳用戶：cjl42111
Level Crossing Rate in Terms of the Characteristic Function: A New Approach for Calculating the Fading Rate in Diversity Systems
標(biāo)簽： Characteristic Calculating the Crossing
上傳時(shí)間： 2016-02-19
上傳用戶：shinesyh
Measurement of gamma Characteristic(Ca200Sample_Gamma.exe)provides Gamma Characteristics of W,R,G and B. Measurement at 16,32,64,128,256 gradation.
標(biāo)簽： Characteristics Characteristic Sample_Gamma Measurement
上傳時(shí)間： 2016-12-29
上傳用戶：familiarsmile
·詳細(xì)說(shuō)明：完整的MP3播放器源碼。包括列表窗口，音頻特性調(diào)整功能，仿照winamp。支持換膚。- Complete MP3 player source code. Including tabulates the window, the audio frequency Characteristic adjustment function, imitates winamp. The support t
上傳時(shí)間： 2013-06-17
上傳用戶：郭靜0516
分析了調(diào)幅信號(hào)和載波信號(hào)之間的相位差與調(diào)制信號(hào)的極性的對(duì)應(yīng)關(guān)系,得出了相敏檢波電路輸出電壓的極性與調(diào)制信號(hào)的極性有對(duì)應(yīng)關(guān)系的結(jié)論。為了驗(yàn)證相敏檢波電路的這一特性,給出3 個(gè)電路方案,分別選用理想元件和實(shí)際元件,采用Multisim 對(duì)其進(jìn)行仿真實(shí)驗(yàn),直觀形象地演示了相敏檢波電路的鑒相特性,是傳統(tǒng)的實(shí)際操作實(shí)驗(yàn)所不可比擬的。關(guān)鍵詞:相敏檢波;鑒相特性;Multisim;電路仿真 Abstract : The corresponding relation between modulation signal polarity and difference phases of amplitudemodulated signal and the carrier signal ,the polarity of phase2sensitive detecting circuit output voltage and the polarity of modulation signal are correspondent . In order to verify this Characteristic ,three elect ric circuit s plans are produced ,idea element s and actual element s are selected respectively. Using Multisim to carry on a simulation experiment ,and then demonst rating the phase detecting Characteristic of the phase sensitive circuit vividly and directly. Which is t raditional practical experience cannot be com pared.Keywords :phase sensitive detection ;phase2detecting Characteristic ;Multisim;circuit simulation
上傳時(shí)間： 2013-11-23
上傳用戶：guanhuihong
為深入了解基于UC3854A控制的PFC變換器中的動(dòng)力學(xué)特性，研究系統(tǒng)參數(shù)變化對(duì)變換器中分岔現(xiàn)象的影響，在建立Boost PFC變換器雙閉環(huán)數(shù)學(xué)模型的基礎(chǔ)上，用Matlab軟件對(duì)變換器中慢時(shí)標(biāo)分岔及混沌等不穩(wěn)定現(xiàn)象進(jìn)行了仿真。在對(duì)PFC變換器中慢時(shí)標(biāo)分岔現(xiàn)象仿真的基礎(chǔ)上，分析了系統(tǒng)參數(shù)變化對(duì)分岔點(diǎn)的影響，并進(jìn)行了仿真驗(yàn)證。仿真結(jié)果清晰地顯示了輸入整流電壓的幅值變化對(duì)系統(tǒng)分岔點(diǎn)的影響。 Abstract: In order to better understand the dynamics Characteristic of power factor correction converter based on UC3854A， and make the way that parameters change influences the bifurcation phenomena of the system clearly. The math model of the two closed loop circuits to the Boost PFC （Power Factor Correction） converter controller was built. Then， with the help of Matlab， the simulation for nonlinear phenomena such as chaos and slow-scale bifurcation in the PFC converter was made. Finally the factors that have influence to the phenomenon of bifurcation under slow-scale in PFC converter were analyzed. The simulation results clearly show the parameters change influences the bifurcation point of the system.
上傳時(shí)間： 2013-10-17
上傳用戶：杜瑩12345
詳細(xì)介紹了TLC1549系列模數(shù)轉(zhuǎn)換器的特點(diǎn)及工作原理，然后根據(jù)TLC1549的工作時(shí)序和A/D轉(zhuǎn)換原理針對(duì)實(shí)際問(wèn)題編寫了詳細(xì)的匯編語(yǔ)言程序。 Abstract: A basic principle and Characteristic of TLC1549 analog-to-digital converter are introduced? detailedly in this article.Through engineering-oriented illustration,a microcomputer programmer base on basic principle and time sequence of TLC1549 is writted.
上傳時(shí)間： 2014-07-16
上傳用戶：blans
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increasingly important. The compressed signalprocessing range mandates a commensurate reductionin reference noise to maintain resolution. Noise ultimatelytranslates into quantization uncertainty in A to D converters,introducing jitter in applications such as scales, inertialnavigation systems, infrared thermography, DVMs andmedical imaging apparatus. A new low voltage reference,the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT.Figure 1 lists salient specifi cations in tabular form. Accuracyand temperature coeffi cient are Characteristic ofhigh grade, low voltage references. 0.1Hz to 10Hz noise,particularly noteworthy, is unequalled by any low voltageelectronic reference.
標(biāo)簽： 低噪聲 電壓基準(zhǔn) 噪聲測(cè)量
上傳時(shí)間： 2013-10-30
上傳用戶：wxhwjf
Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the Characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly realization in the calculation then it described the use in the time-domain finally it analysed several Characteristics of the monopole antenna. The arithmetic used in the microstrip antenna is also a quick and economical way to design the antenna.
標(biāo)簽： structures ultra-wide antennas Coaxial
上傳時(shí)間： 2016-06-28
上傳用戶：朗朗乾坤
To review what a metaball is, and how to render them and to describe a new optimization I ve made for rendering metaballs. For complex scenes, it can render hundreds of times faster, though I m certain others have discovered this trick as well. It does very slightly change the Characteristic shape of the blobs, but there is no loss in image quality whatsoever. (I actually developed all this about two years ago, but just now felt like writing it all down, and had the time!)
標(biāo)簽： optimization and metaball describe
上傳時(shí)間： 2013-12-27
上傳用戶：彭玖華
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