r MattfBMa ««U««V'^ 



1.0 

 0.8 

 0.6 

 0.U 

 0.2 

 

 -0.2 



1.0 



■? 0.3 



to 



§ O.c 



a, 



1 O.h 

 U 0.2 



o.a 



O.b 

 0.1* 

 0.2 









N - 50 

 A lul 





































































A- - 25 













































\y 



















>s 







A' - 10 

 1 











Tf 21 























































0.02 0.04 0.06 0.08 



FMTJUEMCY, CYCLES PEH DATA INTERVAL 



Figure 1. Frequency response of equally weighted 

 running mean weight function compuced by equation (13)' 



cutoff frequency. The cutoff frec-.ency f c is defined as the 

 frequency at the first zero crossing of the frequency axis 

 by the frequency-response curve. 



The ideal low-pass filter leaves all frequency components 

 up to the cutoff frequency f c unaltered and eliminates 

 completely all frequency components above the frequency f c - 



10 



S8WBWM"»*** ,n T 



