w.h

dsp实现的fft定点算法

 typedef short Int16;
typedef long  Int32;
short w[512] = 
	 {
	          0,   32767,     804,   32757,
    1607,   32727,    2410,   32678,
    3211,   32609,    4011,   32520,
    4807,   32412,    5601,   32284,
    6392,   32137,    7179,   31970,
    7961,   31785,    8739,   31580,
    9511,   31356,   10278,   31113,
   11038,   30851,   11792,   30571,
   12539,   30272,   13278,   29955,
   14009,   29621,   14732,   29268,
   15446,   28897,   16150,   28510,
   16845,   28105,   17530,   27683,
   18204,   27244,   18867,   26789,
   19519,   26318,   20159,   25831,
   20787,   25329,   21402,   24811,
   22004,   24278,   22594,   23731,
   23169,   23169,   23731,   22594,
   24278,   22004,   24811,   21402,
   25329,   20787,   25831,   20159,
   26318,   19519,   26789,   18867,
   27244,   18204,   27683,   17530,
   28105,   16845,   28510,   16150,
   28897,   15446,   29268,   14732,
   29621,   14009,   29955,   13278,
   30272,   12539,   30571,   11792,
   30851,   11038,   31113,   10278,
   31356,    9511,   31580,    8739,
   31785,    7961,   31970,    7179,
   32137,    6392,   32284,    5601,
   32412,    4807,   32520,    4011,
   32609,    3211,   32678,    2410,
   32727,    1607,   32757,     804,
   32767,       0,   32757,    -804,
   32727,   -1607,   32678,   -2410,
   32609,   -3211,   32520,   -4011,
   32412,   -4807,   32284,   -5601,
   32137,   -6392,   31970,   -7179,
   31785,   -7961,   31580,   -8739,
   31356,   -9511,   31113,  -10278,
   30851,  -11038,   30571,  -11792,
   30272,  -12539,   29955,  -13278,
   29621,  -14009,   29268,  -14732,
   28897,  -15446,   28510,  -16150,
   28105,  -16845,   27683,  -17530,
   27244,  -18204,   26789,  -18867,
   26318,  -19519,   25831,  -20159,
   25329,  -20787,   24811,  -21402,
   24278,  -22004,   23731,  -22594,
   23169,  -23169,   22594,  -23731,
   22004,  -24278,   21402,  -24811,
   20787,  -25329,   20159,  -25831,
   19519,  -26318,   18867,  -26789,
   18204,  -27244,   17530,  -27683,
   16845,  -28105,   16150,  -28510,
   15446,  -28897,   14732,  -29268,
   14009,  -29621,   13278,  -29955,
   12539,  -30272,   11792,  -30571,
   11038,  -30851,   10278,  -31113,
    9511,  -31356,    8739,  -31580,
    7961,  -31785,    7179,  -31970,
    6392,  -32137,    5601,  -32284,
    4807,  -32412,    4011,  -32520,
    3211,  -32609,    2410,  -32678,
    1607,  -32727,     804,  -32757,
       0,  -32767,    -804,  -32757,
   -1607,  -32727,   -2410,  -32678,
   -3211,  -32609,   -4011,  -32520,
   -4807,  -32412,   -5601,  -32284,
   -6392,  -32137,   -7179,  -31970,
   -7961,  -31785,   -8739,  -31580,
   -9511,  -31356,  -10278,  -31113,
  -11038,  -30851,  -11792,  -30571,
  -12539,  -30272,  -13278,  -29955,
  -14009,  -29621,  -14732,  -29268,
  -15446,  -28897,  -16150,  -28510,
  -16845,  -28105,  -17530,  -27683,
  -18204,  -27244,  -18867,  -26789,
  -19519,  -26318,  -20159,  -25831,
  -20787,  -25329,  -21402,  -24811,
  -22004,  -24278,  -22594,  -23731,
  -23169,  -23169,  -23731,  -22594,
  -24278,  -22004,  -24811,  -21402,
  -25329,  -20787,  -25831,  -20159,
  -26318,  -19519,  -26789,  -18867,
  -27244,  -18204,  -27683,  -17530,
  -28105,  -16845,  -28510,  -16150,
  -28897,  -15446,  -29268,  -14732,
  -29621,  -14009,  -29955,  -13278,
  -30272,  -12539,  -30571,  -11792,
  -30851,  -11038,  -31113,  -10278,
  -31356,   -9511,  -31580,   -8739,
  -31785,   -7961,  -31970,   -7179,
  -32137,   -6392,  -32284,   -5601,
  -32412,   -4807,  -32520,   -4011,
  -32609,   -3211,  -32678,   -2410,
  -32727,   -1607,  -32757,    -804,
  -32767,       0,  -32757,     804,
  -32727,    1607,  -32678,    2410,
  -32609,    3211,  -32520,    4011,
  -32412,    4807,  -32284,    5601,
  -32137,    6392,  -31970,    7179,
  -31785,    7961,  -31580,    8739,
  -31356,    9511,  -31113,   10278,
  -30851,   11038,  -30571,   11792,
  -30272,   12539,  -29955,   13278,
  -29621,   14009,  -29268,   14732,
  -28897,   15446,  -28510,   16150,
  -28105,   16845,  -27683,   17530,
  -27244,   18204,  -26789,   18867,
  -26318,   19519,  -25831,   20159,
  -25329,   20787,  -24811,   21402,
  -24278,   22004,  -23731,   22594,
  -23169,   23169,  -22594,   23731,
  -22004,   24278,  -21402,   24811,
  -20787,   25329,  -20159,   25831,
  -19519,   26318,  -18867,   26789,
  -18204,   27244,  -17530,   27683,
  -16845,   28105,  -16150,   28510,
  -15446,   28897,  -14732,   29268,
  -14009,   29621,  -13278,   29955,
  -12539,   30272,  -11792,   30571,
  -11038,   30851,  -10278,   31113,
   -9511,   31356,   -8739,   31580,
   -7961,   31785,   -7179,   31970,
   -6392,   32137,   -5601,   32284,
   -4807,   32412,   -4011,   32520,
   -3211,   32609,   -2410,   32678,
   -1607,   32727,    -804,   32757
   };