cheby_design.c File Reference

Design of type II Chebychev filters and handling of filters in general. More...

Data Structures
struct	SprCdFilter

Enumerations
enum	{ SPR_CD_LP_FILTER, SPR_CD_HP_FILTER, SPR_CD_BS_FILTER, SPR_CD_BP_FILTER }

Functions
SprCdFilter *	spr_cd_free_filter (SprCdFilter *filter, SprMsgId *routine)
void	spr_cd_print_filter (SprStream *dest, const SprCdFilter *filter)
SprCdFilter *	spr_cd_order_filter (SprCdFilter *filter)
SprCdFilter *	spr_cd_cascade_filter (SprCdFilter *filter1, const SprCdFilter *filter2)
	Put two filters in cascade. More...
int	spr_cd_is_unstable (const SprCdFilter *filter)
int	spr_cd_chebyII_design (SprCdFilter **filter, int ftype, int mx_ord, double bp_ripple, double sb_attenuation,...)
int	spr_cd_gcd (unsigned int i, unsigned int j)
	Calculates the greatest common divider. More...

Variables
const char *const	spr_cd_str_filter []

Detailed Description

Design of type II Chebychev filters and handling of filters in general.

See Also

• Rabiner and Gold, p 241.
• T. W. Parks and C. S. Burrus, Digital Filter Design, John Wiley & Sons, 1987, chapter 7, section 7.3.3.

Date

5 Nov 1995

Author

Kris Demuynck