On 3/15/12 6:50 AM, shali...@gmail.com wrote:

Do you need 16 bits or can you get by with a 12 bit ADC?

Have you considered using an FPGA for signal processing? It seems you need a 
fairly serious CPU to handle that much data.

You could use an FPGA, but the data rate isn't all that high. The signal is fairly narrow band (<1 kHz, I should think). What you might want to do is build a ADC/FPGA combo that provides a nice USB/Ethernet interface for the sample stream which has been digital downconverted and filtered. the FPGA takes care of the icky glue logic details and does a bit of decimation.

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