Any DSP expert here? - Electronic Circuits Projects Diagrams Free

french_student · 2nd March 2004, 08:02 AM

Hi,

I'm in placement now and i must realise a lightning detector based around a DSP. I have some knowledges about that kind of microprocessor, but my issue is that i don't know which DSP and which developpement board i must buy? In fact, the DSP must cost less than 50 Euros (sorry but i'm french so i talk in euros) and the developpement board the most cheap it can be. I saw that the ADDS-2106X-EZLITE is not expensive but the DSP ADSP-21061 costs more than 50 Euros (73.8)! Of course i want good performance but i think i won't do anything really hard, so can anyone give me advice?

Thanks.

crust · 2nd March 2004, 03:16 PM

My doctorate work is in digital signal processing .... how do you plan on detecting lightning, what is your algorithm, sensor, etc?

french_student · 9th March 2004, 02:20 PM

I don't know for the moment how i will detect lightning. But the DSP will be used to treat the signal coming from the reception antenna.

I've just had a TMS320VC5402 dsp and its dsk card. I'm going to make some tests with this.

bmcculla · 9th March 2004, 06:26 PM

Since lightning is like an impulse it broadcasts at all frequencies. A simple AM radio will pick up lightning strikes even at great distances. The lighting produces spikes on the AM signal. It shouldn't be too hard to detect these spikes with your DSP and a simple cheap AM radio.

Hope this helps

Brent

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2nd March 2004, 08:02 AM	(permalink)
french_student	Any DSP expert here? Hi, I'm in placement now and i must realise a lightning detector based around a DSP. I have some knowledges about that kind of microprocessor, but my issue is that i don't know which DSP and which developpement board i must buy? In fact, the DSP must cost less than 50 Euros (sorry but i'm french so i talk in euros) and the developpement board the most cheap it can be. I saw that the ADDS-2106X-EZLITE is not expensive but the DSP ADSP-21061 costs more than 50 Euros (73.8)! Of course i want good performance but i think i won't do anything really hard, so can anyone give me advice? Thanks. __________________ French student is working and still working !!!

2nd March 2004, 03:16 PM	(permalink)
crust	My doctorate work is in digital signal processing .... how do you plan on detecting lightning, what is your algorithm, sensor, etc?

9th March 2004, 02:20 PM	(permalink)
french_student	I don't know for the moment how i will detect lightning. But the DSP will be used to treat the signal coming from the reception antenna. I've just had a TMS320VC5402 dsp and its dsk card. I'm going to make some tests with this. __________________ French student is working and still working !!!

9th March 2004, 06:26 PM	(permalink)
bmcculla	Since lightning is like an impulse it broadcasts at all frequencies. A simple AM radio will pick up lightning strikes even at great distances. The lighting produces spikes on the AM signal. It shouldn't be too hard to detect these spikes with your DSP and a simple cheap AM radio. Hope this helps Brent