IQ correction with phase imbalance: floating point implementation

2026-06-06 16:05:13 -04:00 · 2018-02-04 10:49:13 +01:00
parent 58f0145705
commit b9b2c41ba2
5 changed files with 220 additions and 39 deletions
@@ -282,6 +282,138 @@ const int64_t  FixedTraits<16>::arctantab[32] = {
    0LL
 };

+// 1.0 = 2^23 internal representation
+
+const int64_t  FixedTraits<23>::log_two_power_n_reversed[40] = {
+    232581599LL,
+    226767059LL,
+    220952519LL,
+    215137979LL,
+    209323439LL,
+    203508899LL,
+    197694359LL,
+    191879819LL,
+    186065279LL,
+    180250740LL,
+    174436200LL,
+    168621660LL,
+    162807120LL,
+    156992580LL,
+    151178040LL,
+    145363500LL,
+    139548960LL,
+    133734420LL,
+    127919880LL,
+    122105340LL,
+    116290800LL,
+    110476260LL,
+    104661720LL,
+    98847180LL,
+    93032640LL,
+    87218100LL,
+    81403560LL,
+    75589020LL,
+    69774480LL,
+    63959940LL,
+    58145400LL,
+    52330860LL,
+    46516320LL,
+    40701780LL,
+    34887240LL,
+    29072700LL,
+    23258160LL,
+    17443620LL,
+    11629080LL,
+    5814540LL
+};
+
+const int64_t  FixedTraits<23>::log_one_plus_two_power_minus_n[23] = {
+    3401288LL,
+    1871864LL,
+    988036LL,
+    508556LL,
+    258131LL,
+    130059LL,
+    65281LL,
+    32704LL,
+    16368LL,
+    8188LL,
+    4095LL,
+    2048LL,
+    1024LL,
+    512LL,
+    256LL,
+    128LL,
+    64LL,
+    32LL,
+    16LL,
+    8LL,
+    4LL,
+    2LL,
+    1LL
+};
+
+const int64_t  FixedTraits<23>::log_one_over_one_minus_two_power_minus_n[23] = {
+    5814540LL,
+    2413252LL,
+    1120143LL,
+    541388LL,
+    266327LL,
+    132107LL,
+    65793LL,
+    32832LL,
+    16400LL,
+    8196LL,
+    4097LL,
+    2048LL,
+    1024LL,
+    512LL,
+    256LL,
+    128LL,
+    64LL,
+    32LL,
+    16LL,
+    8LL,
+    4LL,
+    2LL,
+    1LL
+};
+
+const int64_t  FixedTraits<23>::arctantab[32] = {
+    9287436LL,
+    6588397LL,
+    3889358LL,
+    2055029LL,
+    1043165LL,
+    523606LL,
+    262058LL,
+    131061LL,
+    65534LL,
+    32767LL,
+    16383LL,
+    8192LL,
+    4096LL,
+    2048LL,
+    1024LL,
+    512LL,
+    256LL,
+    128LL,
+    64LL,
+    32LL,
+    16LL,
+    8LL,
+    4LL,
+    2LL,
+    1LL,
+    0LL,
+    0LL,
+    0LL,
+    0LL,
+    0LL,
+    0LL,
+    0LL
+};
+
 // 1.0 = 2^24 internal representation

 const int64_t  FixedTraits<24>::log_two_power_n_reversed[39] = {