采样数据如下：
lBFUIN[256] =
{
1026,1032,1039,1045,1052,1058,1066,1073,1081,1087,1095,1104,1113,1121,1129,1138,1146,1155,1165,1172,1183,1192,1201,1212,1222,1231,1242,1251,1262,1272,1284,1294,1303,1313,1324,1335,1346,1356,1367,1377,1387,1398,1410,1420,1430,1440,1450,1461,1472,1481,1492,1503,1513,1523,1533,1542,1552,1562,1571,1580,1590,1599,1609,1618,1625,1635,1643,1651,1658,1667,1674,1682,1690,1697,1704,1710,1718,1723,1730,1737,1743,1747,1753,1757,1762,1768,1771,1777,1781,1784,1787,1792,1793,1797,1800,1800,1804,1806,1807,1808,1810,1810,1811,1809,1810,1811,1809,1809,1807,1806,1804,1802,1799,1798,1795,1792,1789,1785,1782,1779,1774,1770,1765,1761,1756,1750,1745,1738,1733,1727,1721,1714,1707,1700,1693,1686,1679,1671,1664,1656,1647,1637,1630,1622,1612,1603,1594,1586,1577,1566,1557,1547,1538,1527,1517,1507,1498,1488,1476,1467,1456,1445,1436,1426,1415,1405,1393,1383,1373,1362,1351,1340,1329,1319,1307,1298,1288,1277,1268,1257,1247,1238,1227,1217,1207,1197,1189,1178,1169,1161,1150,1141,1133,1124,1116,1107,1101,1092,1084,1077,1069,1062,1055,1048,1041,1036,1030,1024,1018,1012,1006,1001,996,993,987,983,980,976,972,970,966,964,962,959,958,956,954,953,954,952,951,951,951,952,953,953,955,956,959,961,962,966,968,972,975,978,981,986,989,995,1000,1004,1011,1017,1021,1028
};
经过cr4_fft_256_stm32(lBUFOUT, lBUFIN, 256);得到lBUFOUT值如下：
lBUFOUT[256] =
{
0000040f ffe30022 fff20013 fff60018 ffe80016 fffbfff3 fffc0000 fffd0008 fff40004 fffcfff6 fffdfffe fffe0003 fff70001 fffcfffa fffdfffd fffe0001 fffa0001 fffdfffc ffffffff ffff0002 fffb0001 fffefffb 0000fffe ffff0001 fffc0001 fffffffc ffffffff ffff0001 fffb0000 fffffffc 0000ffff 00000001 fffd0001 fffffffd fffffffe ffff0001 fffdffff fffefffd ffffffff 0000ffff fffcffff fffffffe 0000ffff ffffffff fffd0000 fffffffd 00000000 0000ffff fffd0000 fffdfffe fffefffe fffe0000 fffeffff fffefffe ffffffff 00000000 fffd0000 fffefffe fffeffff fffeffff fffe0000 fffeffff fffffffe ffffffff ffff0001 fffeffff 0000ffff 00000000 00000000 ffffffff 0000ffff 00010000 ffff0000 fffeffff ffffffff 00010000 ffff0000 fffe0000 fffffffe 0000ffff ffff0001 ffffffff 00000000 0000ffff ffff0001 0000ffff 0000fffe 0000ffff 00000000 0000fffe 0000ffff 00010000 ffff0000 0000fffe 0000ffff 00010000 00000000 0000ffff 0001ffff 00000000 00000000 ffffffff 0000ffff 0001fffe 00000000 0000ffff 0000ffff 00000000 00000000 0000ffff 0001ffff 0001ffff 00000000 ffffffff 0000ffff 0000ffff 00000000 ffffffff 0000ffff 0001fffe 00000000 ffffffff fffffffe 0000ffff ffff0000 00000000 0000ffff 0001ffff 00000000 fffeffff ffff0000 ffffffff 00000000 fffeffff 00000000 00000000 ffff0000 fffeffff ffffffff 0000ffff ffff0001 fffe0000 ffffffff ffffffff ffff0000 ffff0000 ffffffff ffff0000 ffff0001 fffeffff 0000ffff ffffffff ffff0000 ffffffff ffffffff 0000ffff fffe0000 ffffffff 0000ffff 0000ffff 00000001 ffff0000 0000ffff ffffffff 00000000 ffffffff ffff0000 0000fffe ffff0000 ffff0000 00000000 0001fffe ffff0000 ffffffff 00000000 0000fffe 00000000 fffe0000 ffffffff ffffffff 00000000 ffff0000 ffffffff 0000fffe 00000000 fffe0000 ffffffff fffffffe 00000000 fffe0001 ffffffff 0000fffe 00010001 fffe0001 00000000 0001ffff 00010001 ffff0001 00000000 0001ffff 00010001 fffe0001 ffff0000 00000000 00010001 fffe0002 ffffffff 0000ffff 00010001 ffff0001 00000000 0000fffe 00010001 ffff0001 0000ffff 0000fffe 00010001 ffff0001 00000000 0000ffff 00010001 ffff0001 0000ffff 0000fffe 00020001 ffff0002 00000000 0000ffff 00020001 ffff0002 ffff0001 0000fffd 00030001 fffe0003 00000000 0000fffe 00030001 ffff0003 00000000 0000fffc 00050001 ffff0004 00010000 0001fffc 00060003 ffff0005 00000001 0001fff9 000a0005 ffff0009 00010001 0000fff6 00150017 0005001c 000a0016 00180024
};
请问大侠如何得到有效值和谐波含量？
|
楼主
