Regressive Structures for Computation of DST-II and Its Inverse

Table 1

Hardware comparison for implementing DST-II/IDST-II coefficient.

S. No.	Comparison	Proposed		[14]
		DST	IDST	DST	IDST
1	Latches	2	2	4	4
2	Real multiplier	2	3	4	4
3	Adder	3	3	6	8
4	Complex multiplier	0	0	0	0
5	Computation cycles	N	N	N/2	N/2