Bart Vaart / Mbed 2 deprecated EMG

atoombom

Dependencies:   Encoder HIDScope mbed

Fork of EMG by Tom Tom

LowPassFilter.cpp@20:4fe3cab02341, 2015-09-28 (annotated)

Committer:
Bartvaart
Date:
Mon Sep 28 10:25:22 2015 +0000
Revision:
20:4fe3cab02341
Parent:
18:4ebf5e640f0c 
Hoi Richard hier is een zeer geheim bestand over het filteren van EMG signalen

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bartvaart 18:4ebf5e640f0c 1 #include "encoder.h"
Bartvaart 20:4fe3cab02341 2 #include "LowPassFilter.h"
Bartvaart 18:4ebf5e640f0c 3
Bartvaart 18:4ebf5e640f0c 4 // Define a Ticker, variables for storage, input and output
Bartvaart 18:4ebf5e640f0c 5 Ticker biquadTicker;
Bartvaart 18:4ebf5e640f0c 6 double v1 = 0, v2 = 0, u = 0, y = 0;
Bartvaart 18:4ebf5e640f0c 7 const double a1 = 1.2, a2 = 2.3, b0 = 1.2, b1 = 2.2, b2 = 0.3;
Bartvaart 18:4ebf5e640f0c 8 // Implement the computation function
Bartvaart 20:4fe3cab02341 9 double computeBiquad()
Bartvaart 18:4ebf5e640f0c 10 {
Bartvaart 20:4fe3cab02341 11 double v = u - a1*v1 - a2*v2;
Bartvaart 20:4fe3cab02341 12 y = b0*v + b1*v1 + b2*2;
Bartvaart 18:4ebf5e640f0c 13 v2 = v1;
Bartvaart 18:4ebf5e640f0c 14 v1 = v;
Bartvaart 20:4fe3cab02341 15 return y;
Bartvaart 18:4ebf5e640f0c 16 }