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Re: Meteor Echoes of the day.


 

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Hello Mike

I'm glad you're finding the live stream interesting.? We have a bit of a bottle neck in the Software department at the moment but when that's cleared we want to complete Phase 2 of the project which will result in some improvements to the live display which have made it necessary to purchase our own server, currently we are guests on someone else's server where we are limited by processing power and have occasional drop outs. There's such a drop out at the moment and the folks who can fix it are unavailable right now.

The next Phase (3), once we have moved the heavy work load to our own server, will be to make available the live streams of data from the receivers. This has greater bandwidth and includes precision timing , neither of which can be usefully displayed live, and will allow the display of head echo Doppler slope which the Live display cannot cope with as it's too slow.? The format is similar to? .wav and we hope and expect that it will be possible to take this into other software such as spectrum lab for analysis and system development. We will need to develop trigger criteria so that so that we can store data for events of interest for post processing without using up Terra Bytes of memory ! So lots to do !

Today's screenshot shows the kind of bandwidth we are aiming to stream. In fact we are streaming 7 or 8 KHz as this enables the timing marks to be resolved to a mS or so ( we hope). Bearing in mind that we are dealing with the speed of meteors not that of light this should give us scope for some useful measurements.??? All the best Brian

The lower edge of the timing marks as viewed on the waterfall at 50.406MHz correspond to UTC second rollover and encrypted in pulse length is the UTC time and date plus some other data such as receiver I/D.



On 14/04/2024 09:40, Mike German via groups.io wrote:
On 14/04/2024 09:40, Mike German via groups.io wrote:

Hallo Brian,
Thanks for sharing the daily composite of images - the UK Beacon project has made great progress to get the network up and running and providing them as open access - I study the images and they are fascinating. ?The Collaborative database collected time matched Spectrum Lab images of bright, long duration events around the UK. ?Again these were fascinating to compare and muse on their nature. ?

Is there means to output digital signal and frequency from the FFT so that head echo slopes and amplitude profiles can be examined and analysed??

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