Tài liệu Phần mềm xác định radio P10 doc
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...
Tài liệu Phần mềm xác định radio P1 docx
... (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...
Tài liệu Phần mềm xác định radio P2 docx
... 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...
Tài liệu Phần mềm xác định radio P4 docx
... 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...
Tài liệu Phần mềm xác định radio P6 docx
... 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...
Tài liệu Phần mềm xác định radio P8 docx
... 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...
Tài liệu Phần mềm xác định radio P9 doc
... 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...
Tài liệu Phần mềm xác định radio P12 docx
... 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...
Tài liệu Phần mềm xác định radio P13 docx
... 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...
Tài liệu Phần mềm xác định radio P3 pptx
... 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...
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