Tài liệu Phần mềm xác định radio P10 doc

... for software radios. Software Defined Radio: Enabling Technologies308 2 See Grable, M., ‘Regulation of software defined radio – United States’, in Tuttlebee, W. (Ed.), Software Defined Radio: Origins, ... February, 2000. [7] Chapin, J. ‘Handheld all-software radios: prototyping e evaluation for JTRS Step 2B’, http://www.jtrs.saalt. army.mil/docs/documents/step2b/Vanu.pdf [8] Chapin, J., Chiu...

Ngày tải lên: 21/01/2014, 23:20

... (ASICs), in which case the radio would be considered to be a digital radio but not an SDR. Software Based Radio 13 Figure 1.7 Conceptual definition of the software defined radio (SDR). This functional ... and Use 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...

Ngày tải lên: 24/12/2013, 17:15

... ð7Þ Software Defined Radio: Enabling Technologies42 Figure 2.11 Signal and noise levels throughout a hypothetical receiver chain 2 Radio Frequency Translation for Software Defined Radios Mark Beach, ... software radio. The latter refers to a software radio with A/D conversion at the carrier frequency; the former refers to a fully flexible and dynamically reconfigurable ‘pragmatic’ software...

Ngày tải lên: 24/12/2013, 17:15

... radio (SDR). Regardless of the interpretation of the definitions – software radio, software defined radio, software based radios – the challenge of moving the analog-digital boundary closer to the ... Software Defined Radios Brad Brannon, Chris Cloninger, Dimitrios Efstathiou, Paul Hendriks, Zoran Zvonar Analog Devices Data converters are one of the key enabling technologies for the software...

Ngày tải lên: 24/12/2013, 17:15

... achieved by multiplying the received signal with a respective expo- nential function: Software Defined Radio: Enabling Technologies160 Figure 6.6 Position of the channel-of-interest in the receive frequency ... the above results to up-conversion, it is often sufficient to keep the real part Software Defined Radio: Enabling Technologies162 Figure 6.9 Direct realization of digital down-conversio...

Ngày tải lên: 21/01/2014, 23:20

... signal processing for a software defined radio. After a short introduction, the terms ‘digital radio , ‘software radio , ‘software defined radio , and ‘cognitive radio were discussed. We then explored ... chapter of this volume. Software Defined Radio: Enabling Technologies234 In his doctoral dissertation [1], Joe Mitola introduced the concept of cognitive radio (CR), which brings togeth...

Ngày tải lên: 21/01/2014, 23:20

... time it takes to correct defi- ciencies in the final product, and time to market. Software Defined Radio: Enabling Technologies266 Although DSPs continue to become more powerful and represent a highly ... more silicon ‘real estate’ and burn more power than an equivalent ASIC solution. Software Defined Radio: Enabling Technologies268 Figure 9.4 Trade-offs of existing processing devices 4 Convent...

Ngày tải lên: 21/01/2014, 23:20

... O’Fee, S. ‘European regulation of software radio and Grable, M., ‘Regulation of software defined radio – United States’ in Tuttlebee, W. (Ed)., Software Defined Radio: Origins, Drivers and International ... for networks to support software (defined) radios: the number of co-existing radio access standards will be huge [23] and it can be assumed that one single radio standard will hardly...

Ngày tải lên: 21/01/2014, 23:20

... this func- tionality and so the Radio entity is not decomposed further in order to avoid a specification bias to a particular approach. The abstract capabilities of a radio are therefore expressed directly ... 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 concis...

Ngày tải lên: 21/01/2014, 23:20

... While ‘pure’ software radios anticipate analog-to-digital conversion at the antenna, dispensing with the need for this element of the radio, today’s ‘pragmatic’ software defined radios (SDRs), still ... December, 1999. [5] TR2.1, Software Defined Radio Forum, November, 1999. [6] Cummings, M., ‘Time for software defined radio, ’ EE Times, March 11, 2001. Software Defined Radio: Enabling Techn...

Ngày tải lên: 24/12/2013, 17:15