Timeline for Difference between slow, medium, fast AGC
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Jun 13, 2020 at 18:04 | comment | added | Dan Boschen | @TehWan The idea is to acquire as fast as possible at the expense of a lower bit error rate. Setting loop BW is a trade between SNR in the loop and ability to track fast changes (smaller bandwidth means more filtering but a slower result). | |
| Jun 13, 2020 at 15:56 | vote | accept | Signal | ||
| Jun 13, 2020 at 15:56 | comment | added | Signal | I'm trying to understand this dynamic AGC you mention. During acquisition, how is having a fast AGC beneficial? I guess it depends on the characteristics of the signal. The signal I'm working with starts with a CW preamble, then depending on the modulation used there may be a timing sequence, which I use to synchronize, then data. I can expect 10 dB difference between different transmitters, bursts last roughly 300 symbols. I use a power detector to detect the start and end of the burst. How would the slow and fast modes work in this situation considering acquisition and tracking? | |
| Jun 12, 2020 at 18:53 | history | answered | Dan Boschen | CC BY-SA 4.0 |