針對主控制板上存儲器(SRAM) 存儲的數據量小和最高頻率低的情況,提出了基于SDR Sdram(同步動態RAM) 作為主存儲器的Led 顯示系統的研究。在實驗中,使用了現場可編程門陣列( FPGA) 來實現各模塊的邏輯功能。最終實現了對L ed 顯示屏的控制,并且一塊主控制板最大限度的控制了256 ×128 個像素點,基于相同條件,比靜態內存控制的面積大了一倍,驗證了動態內存核[7 ]的實用性。
上傳時間： 2013-12-18
上傳用戶：c12228
These are P-Channel enhancement mode silicon gate power fi eld effect transistors. They are advanced power MOSFETs designed, tested, and guaranteed to withstand a specifi ed level of energy in the breakdown avalanche mode of operation. All of these power MOSFETs are designed for applications such as switching regulators, switching converters, motor drivers, relay drivers and drivers for other high-power switching devices. The high input impedance allows these types to be operated directly from integrated circuits.
標簽： enhancement transistors P-Channel are
上傳時間： 2017-02-17
上傳用戶：aeiouetla
IEC 62056 的很有價值的參考文檔，包括： DLMS UA 1000-1 ed.8, Blue book, COSEM Identification System and Interface Classes DLMS UA 1000-2 ed.6, Green book, DLMS/COSEM Architecture and Protocols DLMS UA 1001-1 ed.3,Yellow book, DLMS/COSEM Conformance Testing Proce
上傳時間： 2017-02-18
上傳用戶：小眼睛LSL
The C++ editor is a text editor for C++ programmers. The editor have color syntax highlighting. editor s main purpose is to edit source code files outside the IDE (Integrated Development Environment) with multiple opened copies of program, when programmer needs to find, replace or compare source code. The program can compile the file using for this purpose the Microsoft VC compiler. Most effectively the editor can be used with a file search utility. The search utility Search&edit or IDE Helper is available for download on developer s WEB site (http://www.easydevtools.com/dwnl_frame.htm).
標簽： editor highlighting programmers The
上傳時間： 2013-12-09
上傳用戶：x4587
In this paper, the feasibility of replacing a chaos source by an equivalent digital pseudo-random generator realized using Linear Feedback Shift Register (LFSR) is studied. Particular emphasis is given on the digital implementation Piece-Wise Linear A ffine Maps (PWAM). As an application, an FPGA implementation of four different maps has been experimentally verifi ed in a FM-DCSK test radio system.
標簽： pseudo-random feasibility equivalent replacing
上傳時間： 2013-12-13
上傳用戶：從此走出陰霾
This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofocus, utilising an accompanying CameraWrapper made by Forum Nokia. The Camera Wrapper supports all Nokia s S60 devices based on S60 3rd edition and newer, providing a unified interface for various Symbian and S60 camera APIs some of which have previously been Feature Pack specific or only available via an SDK plug-in. The example application supports the use of both the keypad and touch UI. The application can be self-signed, but it also provides an option to use the dedicated camera key (Symbian signing required). The example application replaces the separate examples published for S60 3rd edition, FP1 (S60 Platform: Camera Example with AutoFocus Support v2.2) and FP2 (S60 Camera Example AutoFocus 3rd ed FP2).
標簽： demonstrates Symbian example onboard
上傳時間： 2013-12-11
上傳用戶：hopy
Modelling the Wireless Propagation Channel -A simulation approach with Matlab - 1st ed一書中的所有程序
上傳時間： 2017-05-17
上傳用戶：zhaoyaqun
This book is an entry-level text on the technology of telecommunications. It has been crafted with the newcomer in mind. The eighteen chapters of text have been prepared for high-school graduates who understand algebra, logarithms, and basic electrical prin- ciples such as Ohm’s law. However, many users require support in these areas so Appen- dices A and B review the essentials of electricity and mathematics through logarithms.
標簽： Telecommunications Fundamentals 1st of ed
上傳時間： 2020-05-27
上傳用戶：shancjb
This book is an entry-level text on the technology of telecommunications. It has been crafted with the newcomer in mind. The twenty-one chapters of text have been prepared for high-school graduates who understand algebra, logarithms, and the basic principles of electricity such as Ohm’s law. However, it is appreciated that many readers require support in these areas. Appendices A and B review the essentials of electricity and mathematics up through logarithms. This material was placed in the appendices so as not to distract from the main theme, the technology of telecommunication systems. Another topic that many in the industry find difficult is the use of decibels and derived units. Appendix C provides the reader a basic understanding of decibels and their applications. The only mathematics necessary is an understanding of the powers of ten
標簽： Telecommunications Fundamentals 2nd of ed
上傳時間： 2020-05-27
上傳用戶：shancjb
The chief objective of Electric Machinery continues to be to build a strong foundation in the basic principles of electromechanics and electric machinery. Through all of its editions, the emphasis of Electric Machinery has been on both physical insight and analytical techniques. Mastery of the material covered will provide both the basis for understanding many real-world electric-machinery applications as well as the foundation for proceeding on to more advanced courses in electric machinery design and control.
上傳時間： 2020-06-10
上傳用戶：shancjb
