Minimum Phase Property of Chebyshev-Sharpened Cosine Filters

Table 8

Comparison of results in Example 3.

	Proposed	Method [3]
Group delay (samples) referred to high rate	117	155
Complexity of implementation; (number of adders/number of delays)	20/16	20/20
Computational complexity; (APOS)	215	330
% improvement in group delay; (compared with method [3])	≈24%	—
% saving in APOS; (compared with method [3])	≈35%	—
% saving in complexity of implementation; (compared with method [3])	≈10%	—