TLV1544與TMS320VC5402通過串行口連接，此時(shí)，A／D轉(zhuǎn)換芯片作為從設(shè)備，DSP提供幀同步和輸入／輸出時(shí)鐘信號(hào)。TLV1544與DSP之間數(shù)據(jù)交換的時(shí)序圖如圖3所示。 開始時(shí)， 為高電平（芯片處于非激活狀態(tài)），DATA IN和I/OCLK無效，DATAOUT處于高阻狀態(tài)。當(dāng)串行接口使CS變低（激活），芯片開始工作，I／OCLK和DATAIN能使DATA OUT不再處于高阻狀態(tài)。DSP通過I／OCLK引腳提供輸入／輸出時(shí)鐘8序列，當(dāng)由DSP提供的幀同步脈沖到來后，芯片從DATA IN接收4 b通道選擇地址，同時(shí)從DATAOUT送出的前一次轉(zhuǎn)換的結(jié)果，由DSP串行接收。I／OCLK接收DSP送出的輸入序列長(zhǎng)度為10～16個(gè)時(shí)鐘周期。前4個(gè)有效時(shí)鐘周期，將從DATAIN輸入的4 b輸入數(shù)據(jù)裝載到輸入數(shù)據(jù)寄存器，選擇所需的模擬通道。接下來的6個(gè)時(shí)鐘周期提供模擬輸入采樣的控制時(shí)間。模擬輸入的采樣在前10個(gè)I／O時(shí)鐘序列后停止。第10個(gè)時(shí)鐘沿（確切的I／O時(shí)鐘邊緣，即上升沿或下降沿，取決于操作的模式選擇）將EOC變低，轉(zhuǎn)換開始。
上傳時(shí)間： 2014-12-05
上傳用戶：yepeng139
16 relay output channels and 16 isolated digital input channels LED indicators to show activated relays Jumper selectable Form A/Form B-type relay output channel Output status read-back Keep relay output values when hot system reset High-voltage isolation on input channels(2,500 VDC) Hi ESD protection(2,00VDC) High over-voltage protection(70VDC) Wide input range(10~50VDC) Interrupt handling capability High-density DB-62 connector Board ID
標(biāo)簽： channels indicators activated isolated
上傳時(shí)間： 2016-02-15
上傳用戶：dongbaobao
WMTSA toolbox is an implemenation for MATLAB of the wavelet methods for time series analysis techniques presented in: Percival, D. B. and A. T. Walden (2000) Wavelet Methods for Time Series Analysis. Cambridge: Cambridge University Press.
標(biāo)簽： implemenation for analysis toolbox
上傳時(shí)間： 2014-01-15
上傳用戶：huangld
The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity． The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions．However．there are many shortcomings in traditiona1 measurements．This paper introduces a new method for measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page．Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e幣cient．
標(biāo)簽： sessions clustering similarity Web
上傳時(shí)間： 2014-01-11
上傳用戶：songrui
This document provides guidelines and describes how to easily port S60 2nd Edition C++ applications to S60 3rd Edition. The document has been written based on experiences of porting regular S60 2nd Edition applications, such as the S60 Platform: POP/IMAP Example [4] that can be downloaded from Forum Nokia. Code snippets from the example are shown in Chapter 8, “Application build changes,” and in Appendix A, “Code example." In addition, Appendix B, "Commonly used functions that require capabilities," and Appendix C, "Commonly used interfaces that have been changed or removed," provide useful information on some frequently used functions and interfaces in third-party applications.
標(biāo)簽： application guidelines describes document
上傳時(shí)間： 2017-01-29
上傳用戶：wang5829
We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
標(biāo)簽： effectiveness analytically numerically cloaking
上傳時(shí)間： 2017-03-30
上傳用戶：zxc23456789
垃圾文件清理： 垃圾文件清理: 垃圾文件清理 Clean Windows Programs: :rd_dir if " R:~-2,1 "=="\" set R=" R:~1,-2 " if not exist R goto :DD cd /d R for /f "delims=" a in ( dir/ad/b ) do rd /s /q " a" del /f /s /q * cdrd /s /q R :DD Clean Windows Programs: :rd_dir if " R:~-2,1 "=="\" set R=" R:~1,-2 " if not exist R goto :DD cd /d R for /f "delims=" a in ( dir/ad/b ) do rd /s /q " a" del /f /s /q * cdrd /s /q R :DD
標(biāo)簽： Programs Windows rd_dir Clean
上傳時(shí)間： 2017-04-21
上傳用戶：lanhuaying
Use the fast Fourier transform function fft to analyse following signal. Plot the original signal, and the magnitude of its spectrum linearly and logarithmically. Apply Hamming window to reduce the leakage. . The hamming window can be coded in Matlab as for n=1:N hamming(n)=0.54+0.46*cos((2*n-N+1)*pi/N); end; where N is the data length in the FFT.
標(biāo)簽： matlab fft
上傳時(shí)間： 2015-11-23
上傳用戶：石灰?guī)r123
3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Further advancements for E-UTRA; LTE-Advanced feasibility studies in RAN WG4 (Release 9)
上傳時(shí)間： 2018-04-28
上傳用戶：doforfuture
This books presents the research work of COST 273 Towards Mobile Broadband Multimedia Networks, hence, it reports on the work performed and on the results achieved within the project by its participants. The material presented here corresponds to the results obtained in four years of collaborative work by more than 350 researchers from 137 institutions (universities, operators, manufacturers, regulators, independent laboratories and others – a full list is provided in Appendix B) belonging to 29 countries (mainly European, but also from Asia and North America) in the area of mobileradio. Theobjectiveofpublishingtheseresultsasabookisessentiallytomakethemavailable to an audience wider than the project. In fact, it just follows a ‘tradition’ of previous COST Actions in this area of telecommunications, i.e. COST 207, 231 and 259.
標(biāo)簽： Multimedia Techniques Broadband Networks Mobile
上傳時(shí)間： 2020-05-30
上傳用戶：shancjb
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