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Hi,
I am impressed with your research and the way you have used virtual preamble to extend the range of normal BLE phy stack. I am trying to reproduce the things at my desk. I have done with the transmissions from NRF kit and also received the IQ samples using PlutoSDR. Next I need to run the Matlab code and decode the transmitted packet with preamble.

Can you share your existing below preamble MAT files to get started decoding easily, I really appreciate it, Thanks

if (strcmp(miniarg, "MINI") == 1)
mini = 1;
extractedPreamble = load('extractedPreambleMini3_2e6.mat');
elseif (strcmp(miniarg, "DEV") == 1)
mini = 0;
extractedPreamble = load('extractedPreamble_2e6.mat');
elseif (strcmp(miniarg, "nrf52832") == 1)
mini = 3;
extractedPreamble = load('nrf52832.mat');
elseif (strcmp(miniarg, "nrf52840a") == 1)
mini = 4;
extractedPreamble = load('nrf52840a.mat');
elseif (strcmp(miniarg, "nrf52840b") == 1)
mini = 5;
extractedPreamble = load('nrf52840b.mat');
else
mini = 2;
extractedPreamble = load('blackPreamble.mat');
end