... vẻ - hạnh phúc Phần mềm chuyển file PDF sang file Word cực hay cú Serial :Serial : ã PDF2Word (PDF to Word) xut mi ch, hình ảnh và các nội dung khác từ bất kỳ file PDF nào sang định dạng MS ... 1 biểu tượng xuất hiện ngoài màn hình như sau : để chuyển đổi từ PDF sang word ta khởi động phần mềm ; giao diện của phần mềm như sau : ... chuyn i ã H tr chuyn i khong trang; ã H tr xúa nh trong file Word; ã H tr chuyn i file mó húa; ã 5 ch chuyn i; ã Chuyn i file PDF sang MS Word khụng cha textbox; ã Size:3.77 Mb http://www.verypdf.com/pdf2word/pdf2word.exe Serial...
Ngày tải lên: 06/07/2013, 01:26
Phần mềm nhỏ gọn, miễn phí chuyển đổi file docx sang doc potx
Ngày tải lên: 23/07/2014, 15:20
Tài liệu Công nghệ phần mềm - Tìm hiểu về wifi docx
... bn không còn tip xúc vi máy tính na thì bn nên turn off nó. ây là cách bo mt nht cho các file máy tính ca bn, vì không mt hacker nào có th vào c mt thng mà nó không còn hot ... ng có Bluetooth. liu không ch là danh bn thoi, lch công tác mà còn là nhng media files nh hình nh nh và tin nhn. Hu ht các thit bu có mt la chn mà bn có th thit...
Ngày tải lên: 22/12/2013, 16:16
Tài liệu Phần mềm xác định radio P1 docx
... of Software Defined Radios’, ET Docket No. 00-47, FCC 01-264, Adopted September 13, 2001. http:// www.http://hraunfoss.fcc.gov/edocs_public/silverstream/pages/edocs.html (search for 01-264 in ... for the evolution of SDR to SR are advances in signal processing technology including A/D and D/A converters, faster signal processors, memory chips, etc. Advances in these core technologies are ... traditional-design, multiband, multimode handset. Reproduced by permission of Cingular Wireless. If the A/D converter were to be moved closer to the antenna, the radio moves closer to the ideal, namely the...
Ngày tải lên: 24/12/2013, 17:15
Tài liệu Phần mềm xác định radio P2 docx
... Receiver Architectures The primary distinction between receivers is the number of stages taken to down -convert a signal to baseband. Direct conversion takes one down-conversion; superheterodyne receivers employ ... at a low noise figure. The output signal from the LNA is filtered in a preselect filter, and down-converted in a complex (I,Q) mixer. The majority of the gain and automatic gain control (AGC) is...
Ngày tải lên: 24/12/2013, 17:15
Tài liệu Phần mềm xác định radio P4 docx
... architectures so that the best converter can be selected for a given communications system. 4.2.1 Flash Converters One of the first data converter architectures was the flash converter. A flash or parallel Software ... amplifiers, mixers, and data converters. 1 However, unlike the noise from active and passive elements, the noise within data converters is not always thermal in nature. Of course data converters do have ... quantization or converter step size. Traditionally, DNL has been associated with the static or DC performance of a converter. However, DNL does affect the noise performance of the converter by increasing...
Ngày tải lên: 24/12/2013, 17:15
Tài liệu Phần mềm xác định radio P6 docx
... signal-of-interest x Tx;BB tị which should nally be down-converted to baseband. The following signal is produced at the output of the analog down-converter when down-converting by f 1 . For reasons of simplicity ... that have been down-converted. In order to select the chan- nel-of-interest these adjacent channels must be removed with a filter. Since the channel-of- interest has been down-converted to baseband, ... spurious emission requirements must be met by the digital signal processing and the digital-to-analog converter. Hence, the signal character- istics are an important issue. 6.1.2 Signal Characteristics Signal...
Ngày tải lên: 21/01/2014, 23:20
Tài liệu Phần mềm xác định radio P8 docx
... one considers that a dynamic range of at least 60 dB is necessary for the analog-to-digital (A/D) converter. Moreover the sampling rate would further increase if wireless local area networks (WLANs), ... transport channel data 8.3 Parametrization of Standards As a communications standard we define a set of documents that describes the functions of a system in such a way that a manufacturer can develop ... of Signals in Communications, 1991, pp. 193–197. Software Defined Radio: Enabling Technologies256 In his doctoral dissertation [1], Joe Mitola introduced the concept of cognitive radio (CR), which brings...
Ngày tải lên: 21/01/2014, 23:20
Tài liệu Phần mềm xác định radio P12 docx
... depicted in Figure 12.12; UCCH signaling protocols for software download and mobility management are documented in [27]. 12.4.4 The Interconnected Seamless Network Reconfigurability of terminals and ... and Gutierrez, J., Programming Interfaces for IP Routers and Switches, an Architectural Framework Document, IP Subworking Group IEEE P1520, 1999. [12] Beyer, D., et al., ‘API framework for Internet ... a number of different reconfigurable modules such as the hardware interface (i.e. antenna, filters, converters, etc.), protocol stack reconfiguration (internally and/or using active wireless networks),...
Ngày tải lên: 21/01/2014, 23:20
Tài liệu Phần mềm xác định radio P13 docx
... considerable challenges that are usually resolved by fairly large specification documents. The authors of these documents may seek to minimize the size by attempting to provide concise specifications, ... transformation. 13.4 Refinement to an implementation A WDL specification is implementation neutral and so cannot be converted directly to a particular vendor’s favored architecture, since the target environment is ... increased reusability Once tool sets are available to handle the extra stages of compilation needed to convert a specification into an implementation, products will benefit from † reduced development times †...
Ngày tải lên: 21/01/2014, 23:20