Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: LF: Re: Clipping or blanking/9kHz intermods

from [Wolfgang Büscher] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Re: Clipping or blanking/9kHz intermods
From: Wolfgang Büscher <[email protected]>
Date: Sat, 22 May 2010 12:26:37 +0200
In-reply-to: <[email protected]>
References: <008f01caf784$779a11d0$0301a8c0@your91hoehfy9g> <[email protected]> <[email protected]> <[email protected]> <1C7BCD9DEB29472F9BB467C4EE390840@JimPC> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Thunderbird 2.0.0.24 (Windows/20100228) 

Hello Peter,

you wrote:

Interesting that "clipper" function. What algorithm are you using and at
which "average" time/frequency window(s)?
There are two algorithms, a hard limiter (simple clipper) and a noiseblanker. Fot the clipper, the average (of the signal power) uses a simple lowpass filter with a time constant of a few seconds. I uloaded the algorithms as C / C++ sourcecodes, with a few toughts from Markus DF6NM and myself in the comment fields - this may actually be more interesting than the implementation itself (in the module noiseblanker.cpp). The zipped sourcecode archive is here: 

http://www.qsl.net/dl4yhf/speclab/noiseblanker_and_clipper_algo.zip

All the best,
73,  Wolf .
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  LF: Re: Clipping or blanking/9kHz intermods, pws
Next by Date:  Re: LF: Re: Clipping or blanking/9kHz intermods, Stefan Schäfer
Previous by Thread:  LF: Re: Clipping or blanking/9kHz intermods, pws
Next by Thread:  Re: LF: Re: Clipping or blanking/9kHz intermods, Stefan Schäfer
Indexes:  [Date] [Thread] [Top] [All Lists]