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Improve agc for PER at certain RSSI:

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Change the agc preamble from 32 to 16. The reason:
With agc preamble 32, AWGN channel MCS7 will have high PER (~50%) at RSSI range -52~-54dBm.
it is not a soly issue of AGC, but also related to the FO estimation. Because forced FO value could reduce the PER to zero.
Our future LTF based FO estimation is expected to solve this issue.
Changing the agc preamble from 32 to 16 also help a lot on this: PER <=~10%.
This commit is contained in:
Xianjun Jiao 2025-03-20 17:57:21 +01:00
parent 2ae7b71c83
commit b5d8ef2809
1 changed files with 1 additions and 1 deletions
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2
user_space/agc_settings.sh
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@ -37,7 +37,7 @@ if [ $1 == "0" ]; then
echo 0x10A 0x58 > direct_reg_access
echo "Applied default AGC settings"
elif [ $1 == "1" ]; then
echo 0x15C 0x71 > direct_reg_access
echo 0x15C 0x70 > direct_reg_access
echo 0x106 0x77 > direct_reg_access
echo 0x103 0x1C > direct_reg_access
echo 0x101 0x0C > direct_reg_access