Dateset 1: Free space optical secret key agreement

This zip contains the data sets of free space optical transmission conducted from 10:00 on 7 Jun. 2017 to 10:35 on 13 Jun. 2017. See Fig. 10 in our companion paper ``Free space optical secret key agreement". A data of one frame consists of following four rows with the same FrameIDs. The 1st row (IsBob = 1, Is1 = 1) shows Bob's histogram when Alice sent bit `1'. The 2nd row (IsBob = 1, Is1 = 0) shows Bob's histogram when Alice sent bit `0'. The 3rd row (IsBob = 0, Is1 = 1) shows Eve's histogram when Alice sent bit `1'. The 4th row (IsBob = 0, Is1 = 0) shows Eve's histogram when Alice sent bit `0'. Column 1, `FrameID': A unique number to identify the frame, written as `yyyymmdd_hhnnss_XXXX_?'; `yyyy': year, `mm': month, `dd': day, `hh': hour, `nn': minute, `ss': second, `?': A to K (additional character to identify frames acquired at the same time). Column 2, `IsBob': Indicator to identify the receiver; `1': Bob, `0': Eve. Column 3, `Is1': Indicator to identify the Bit sent by Alice; `1': Alice sent bit `1', `0': Alice sent bit `0'. Column 4, `BobPower': Average received signal power at Bob [nW]. Column 5, `EvePower': Average received signal power at Eve [nW]. Column 6, `KeyRate': Final key rate [kbps]. Column 7, `rank_m50' to Column 307, `rank_p248': Frequency distribution of detector output divided into -50 to 250 values; e.g., Column 8, `rank_m49' shows the number of data greater than or equal to -49 but smaller than -48.