To: | [email protected] |
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Subject: | Re: VLF: EbNaut tonite |
From: | DK7FC <[email protected]> |
Date: | Tue, 30 May 2017 12:49:45 +0200 |
In-reply-to: | <[email protected]> |
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Am 29.05.2017 20:02, schrieb Paul Nicholson: I also tried the amplitude and power normalisation trick but that didn't improve the result either. I thought a bit about noise cancelling techniques. You recently said that you are using different filter/blanker settings for daytime and nighttime signals. Since you are programming all the software you are using (ufb!, i wish i could do it too :-) ), would it be useful to determine the optimal filter/blanker settings from the signal appearing during the analysis? I mean, can you analyse e.g. QRN bursts (time domain, checking rise time, and peak above average) and then apply an optimal, individual filter which already includes the idea of the power normalisation trick? :-) 73, Stefan |
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