DENSITY IN DB 
DENSITY (X10!) 
GAIN (IN 0B) 
COHERE. 
POWER SPECTRAL DENSITY 
INPUT: 1 WAVE 
-20.00 
—40.00 
-60.00 
0.00 1.00 2.00 
FREQUENCY 
CROSS SPECTRAL DENSITY 
REAL PART 1 2 
0.01 
0.02 
-0.05 
0.00 1.00 2.00 
FREQUENCY 
FREQUENCY RESPONSE FUNCTION 
INPUT: 1 WAVE 
OUTPUT: 2 RELATIVE WAVE 
N=250 
-0.00 
-20.00 
0.00 1.00 2.00 
FREQUENCY 
1.00 
0.00 
0.00 1.00 2.00 
FREQUENCY 
POWER SPECTRAL DENSITY 
OUTPUT: 2 RELATIVE WAVE 
-20.00 
fos} 
fa) 
z 
= -40.00 
G 
74 
Ww 
(=) 
-60.00 
0.00 1.00 2.00 
FREQUENCY 
CROSS SPECTRAL DENSITY 
IMAG. PART 1 2 
-0.02 
DENSITY (X10!) 
b& b 
Oo i=) 
a o 
1.00 2.00 
° 
8 
FREQUENCY 
-18.00 
PHASE (DEG.) (X10!) 
2 a B 
3 8 8 
° 
8 
1.00 2.00 
FREQUENCY 
Fig. 7.15. Frequency response analysis for relative wave height by 
AR-—model fitting (N=250, Af=0.2 sec, AR-15). 
(From Oda, Yamanouchi, et al.53) 
242 
