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The R&S®DDF255 digital direction finder optionally pro
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vides hardware-accelerated signal processing for the
R&S®CA120 multichannel signal analysis system. For this
purpose, the R&S®DDF255 needs to be equipped with the
R&S®DDF255-SP signal processing board. The board sup
-
ports up to four different high-performance signal process
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ing functions implemented in field programmable gate
array (FPGA) technology.
Multichannel signal detection and analysis in a
networked system
Equipped with the R&S®DDF255-SP hardware-accelerated
signal processing option, the R&S®DDF255 supports par
-
allel multichannel signal detection and analysis. The fol
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lowing high-performance signal processing functions are
implemented in field programmable gate array (FPGA)
technology:
❙
Multichannel signal extraction: R&S®DDF255DDCE
❙
Calculation of high-resolution spectra: R&S®DDF255-HRP
The R&S®CA120 multichannel signal analysis system ide
-
ally complements the R&S®DDF255 when equipped with
the following options:
❙
Multichannel signal processing: R&S®CA120MCP,
R&S®CA120FFP
❙
Detection of fixed frequency and burst signals:
R&S®CA120DSC
Thanks to the detailed interface description, system inte
-
grators can directly access the receiver data streams for
processing in their own external systems.
Parallel multichannel output of more than
100 channels
Within the direction finder's realtime bandwidth, more
than 100 channels (manually set by the user) with a maxi
-
mum bandwidth of 30 kHz each or 32 channels with a
maximum bandwidth of 300 kHz each can be simultane
-
ously output over the 1 Gbit Ethernet interface. As a result,
a large number of signals are available as an I/Q baseband
data stream that can be processed in external systems
(
R&S®DDF255DDCE option).
Equipped with the R&S®CA120MCP and R&S®CA120FFP
options, the R&S®CA120 multichannel signal analysis sys
-
tem processes the extracted signals online and supports
multichannel content recovery in a signal scenario with
many signals through audio demodulation, classification,
demodulation/decoding and recording