cordic.h File Reference

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Variables
static const int32_t	cordic_lookup [CORDIC_31B_TABLE_SIZE]
	cordic_atan2_lookup_table = atan(2.
static const int32_t	cordic_ilookup [CORDIC_30B_ITABLE_SIZE]

Variable Documentation

cordic_ilookup

const int32_t cordic_ilookup[CORDIC_30B_ITABLE_SIZE]

static

Initial value:

= {
    497837829, 263043836, 133525158, 67021686, 33543515, 16775850,
    8388437, 4194282, 2097149, 1048575, 524287, 262143,
    131071, 65535, 32767, 16383, 8191, 4095,
    2047, 1023, 511, 255, 127, 63,
    31, 15, 8, 4, 2, 1}

cordic_lookup

const int32_t cordic_lookup[CORDIC_31B_TABLE_SIZE]

static

Initial value:

= { 843314857, 497837829,
    263043837, 133525159, 67021687, 33543516, 16775851, 8388437, 4194283, 2097149,
    1048576, 524288, 262144, 131072, 65536, 32768, 16384, 8192, 4096, 2048, 1024,
    512, 256, 128, 64, 32, 16, 8, 4, 2, 1 }

cordic_atan2_lookup_table = atan(2.

^-(0:N-1)) N = 31/16 CORDIC Gain is cordic_gain = prod(sqrt(1 + 2.^(-2*(0:31/16-1)))) Inverse CORDIC Gain,inverse_cordic_gain = 1 / cordic_gain