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Visitor sravan@243
Visitor
6,165 Views
Registered: ‎12-21-2011

cross correlation in xilinx

Hi,

I WANT TO FIND THE DELAY BETWEEN TWO SIGNALS USING CROSS CORRELATION IN XILINX.CAN ANYONE EXPLAIN HOW CAN I PERFORM CROSS CORRELATION BETWEEN TWO SIGNALS IN XILINX

 

Thanks,

Sravan

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3 Replies
Teacher rcingham
Teacher
6,157 Views
Registered: ‎09-09-2010

Re: cross correlation in xilinx

The following thread may be helpful:
http://forums.xilinx.com/t5/Digital-Signal-Processing-IP-and/cross-correlation-of-two-sine-signals-using-xilinx-blockset/td-p/120650

Designing a cross-correlator in HDL would be a difficult task, even for someone experienced in HDL-based FPGA design, unless they have done one before.

 

BTW, please don't shout.

 


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"If it don't work in simulation, it won't work on the board."
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Visitor sravan@243
Visitor
6,135 Views
Registered: ‎12-21-2011

Re: cross correlation in xilinx

Hi rcingham,

the thread you provided was very helpful in identifying the delay, thanks for that. Now i need to identify the multiple delays between two signals, for that i need to go for wigner distribution(i.e FFT of the auto correlation of the signal) of the signal.Could you please help me in identifying these multiple delays

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Scholar joelby
Scholar
6,106 Views
Registered: ‎10-05-2010

Re: cross correlation in xilinx

These aren't FPGA-specific problems - have you modelled your system using a tool like Matlab? It is far quicker and easier to prototype and evaluate DSP algorithms in software tools. Once you've found a working solution, you can then implement it on your FPGA. In the meantime, a DSP-specific forum or an appropriate professor (if you're working at a university) might be more helpful.

 

 

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