23 May
2015
23 May
'15
8:59 a.m.
Am 23.05.15 um 17:24 schrieb Mark J. Blair:
In the middle will be some FPGA to perform any
necessary magic.
What about the analogy of Software Defined Radio:
Use only as much electronics as minimal necessary to get the input
signal digitized by a high speed ADC. Maybe some cheap DVB-T USB thing
can be abused for the ADC part. Do the processing in software on a
"normal" computer. (PeeCee, some ARM single board thing.)
Advantage:
- Converts to whatever video output your PeeCee has.
- Works on a laptop. No extra display needed when on the road.
- Easy to capture the video to generate AVI, MPEG, ...
- Scaling can be done by GPU of host computer. No need to reinvent the
wheel. (If the existing GPU wheel fits the wagon...)
- Scaling and other processing can be done in easy to change software.
That way it is easy to extent for other people. (Different scaling
and interpolating algorithms. Adaption to the odd signal from some
obscure hardware of other people.)
- Most likely cheaper then a stand alone solution.
- No obscure FPGA magic needed.
Disadvantage:
- needs extra PeeCee / ARM-SBC for processing.
- No obscure FPGA magic needed.
--
tsch??,
Jochen