Highpass en Notch filter voor EMG verwerking

Dependencies:   HIDScope mbed-dsp mbed

Fork of EMG_HIDScope by First Last

Files at this revision

API Documentation at this revision

Comitter:
jessekaiser
Date:
Tue Oct 14 13:32:59 2014 +0000
Parent:
21:133e9390a42a
Commit message:
Werkt (maar waarom? Nobody knows)

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 133e9390a42a -r 6b4ea19efad1 main.cpp
--- a/main.cpp	Wed Oct 01 12:25:06 2014 +0000
+++ b/main.cpp	Tue Oct 14 13:32:59 2014 +0000
@@ -1,6 +1,5 @@
 #include "mbed.h"
 #include "HIDScope.h"
-
 #include "arm_math.h"
 
 //Define objects
@@ -9,12 +8,12 @@
 
 arm_biquad_casd_df1_inst_f32 lowpass;
 //constants for 5Hz lowpass
-float lowpass_const[] = {0.02008337 , 0.04016673 , 0.02008337 , 1.56101808 , -0.64135154};
+float lowpass_const[] = {0.5857841106784856, -1.3007020142696517e-16, 0.5857841106784856, -1.3007020142696517e-16, 0.17156822135697122};
 //state values
 float lowpass_states[4];
 arm_biquad_casd_df1_inst_f32 highpass;
 //constants for 0.5Hz highpass
-float highpass_const[] = {0.97803048, -1.95606096,  0.97803048, 1.95557824 , -0.95654368};
+float highpass_const[] = {0.8948577513857248, -1.7897155027714495, 0.8948577513857248, 0.8008009266036016};
 //state values
 float highpass_states[4];
 
@@ -55,7 +54,8 @@
 }
 
 int main()
-{
+{   
+    
     Ticker log_timer;
    //set up filters. Use external array for constants
     arm_biquad_cascade_df1_init_f32(&lowpass,1 , lowpass_const, lowpass_states);