Pulse Wave Cycle Features Analysis of Different Blood Pressure Grades in the Elderly

Table 1

TD features.

Id	TD features	Meaning
1		The duration of the percussion wave
2		The duration of the beginning of the tidal wave
3		The duration of the crest of the tidal wave
4		The duration of the beginning of the dicrotic wave
5		The duration of the crest of the dicrotic wave
6		The amplitude of the percussion wave
7		The amplitude of the beginning of the tidal wave
8		The amplitude of the crest of the tidal wave
9		The amplitude of the beginning of the dicrotic wave
10		The amplitude of the crest of the dicrotic wave
11		The width in 1/3 amplitude of the percussion wave
12		The width in 1/5 amplitude of the percussion wave
13		The ratio of and t
14		The ratio of and t
15		The ratio of and
16		The ratio of and
17		The ratio of and
18		A pulse cycle duration
19	As	The systolic pulse wave area in
20	Ad	The diastolic pulse wave area between the end of 4 and the end of