first test of done filter
Dependencies: biquadFilter mbed HIDScope
main.cpp@10:bc2c13508fe5, 2016-10-31 (annotated)
- Committer:
- s1604554
- Date:
- Mon Oct 31 10:49:39 2016 +0000
- Revision:
- 10:bc2c13508fe5
- Parent:
- 9:6196636f8879
- Child:
- 11:50ef30ca2b59
Filter is done if this works
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
s1604554 | 0:eb47e42019a4 | 1 | #include "mbed.h" |
s1604554 | 0:eb47e42019a4 | 2 | #include "BiQuad.h" |
s1604554 | 0:eb47e42019a4 | 3 | #include "stdlib.h" |
s1604554 | 0:eb47e42019a4 | 4 | #include <iostream> |
s1604554 | 0:eb47e42019a4 | 5 | #include <cmath> |
s1604554 | 0:eb47e42019a4 | 6 | #include <string> |
s1604554 | 1:e7cf79380e24 | 7 | #include "HIDScope.h" |
s1604554 | 0:eb47e42019a4 | 8 | |
s1604554 | 6:7223ff6719b7 | 9 | |
s1604554 | 1:e7cf79380e24 | 10 | AnalogIn emg0(A0); |
carlmaykel | 2:812bb0deedef | 11 | AnalogIn emg1(A1); |
s1604554 | 7:f99e7ca907f1 | 12 | DigitalOut led2(LED2); |
carlmaykel | 2:812bb0deedef | 13 | DigitalOut led1(LED1); |
s1604554 | 9:6196636f8879 | 14 | HIDScope scope( 2 ); |
s1604554 | 7:f99e7ca907f1 | 15 | |
s1604554 | 9:6196636f8879 | 16 | Ticker emgticker; |
s1604554 | 9:6196636f8879 | 17 | |
s1604554 | 9:6196636f8879 | 18 | BiQuadChain bqc; |
s1604554 | 9:6196636f8879 | 19 | BiQuad bq1( 8.17310e-01, 0.00000e+00, -8.17310e-01, -1.57627e-01, -6.34619e-01 ); //bandpass |
s1604554 | 9:6196636f8879 | 20 | BiQuad bq2( 6.68124e-01, -1.27085e+00, 6.68124e-01, -1.27085e+00, 3.36249e-01 ); //notchnotch |
s1604554 | 10:bc2c13508fe5 | 21 | //there is a rectifier between these two bqc's |
s1604554 | 10:bc2c13508fe5 | 22 | //gives you new highfrequency noise, so lowpass afterwards |
s1604554 | 1:e7cf79380e24 | 23 | |
s1604554 | 9:6196636f8879 | 24 | BiQuadChain bqc2; |
s1604554 | 9:6196636f8879 | 25 | BiQuad bq3( 6.74553e-02, 1.34911e-01, 6.74553e-02, -1.14298e+00, 4.12802e-01 ); //lowpass |
s1604554 | 8:3c9f2e6ea1cd | 26 | |
s1604554 | 6:7223ff6719b7 | 27 | |
s1604554 | 1:e7cf79380e24 | 28 | |
s1604554 | 0:eb47e42019a4 | 29 | |
s1604554 | 1:e7cf79380e24 | 30 | void Sample () |
s1604554 | 1:e7cf79380e24 | 31 | { |
s1604554 | 1:e7cf79380e24 | 32 | |
s1604554 | 1:e7cf79380e24 | 33 | double emgSignal = emg0.read(); |
s1604554 | 6:7223ff6719b7 | 34 | |
s1604554 | 1:e7cf79380e24 | 35 | |
s1604554 | 4:81f889cd0c2e | 36 | double emgFiltered1 = bqc.step(emgSignal); |
s1604554 | 4:81f889cd0c2e | 37 | double emgFiltered2 = fabs(emgFiltered1); |
s1604554 | 9:6196636f8879 | 38 | double emgFiltered3 = bqc2.step(emgFiltered2); |
s1604554 | 0:eb47e42019a4 | 39 | |
s1604554 | 6:7223ff6719b7 | 40 | scope.set(0, emgSignal); |
s1604554 | 9:6196636f8879 | 41 | scope.set(1, emgFiltered3); |
s1604554 | 6:7223ff6719b7 | 42 | scope.send(); |
s1604554 | 7:f99e7ca907f1 | 43 | |
s1604554 | 10:bc2c13508fe5 | 44 | if (emgFiltered2 >= 0.1) |
s1604554 | 7:f99e7ca907f1 | 45 | |
s1604554 | 7:f99e7ca907f1 | 46 | { |
s1604554 | 7:f99e7ca907f1 | 47 | led2 = !led2; |
s1604554 | 6:7223ff6719b7 | 48 | led1 = !led1; |
s1604554 | 8:3c9f2e6ea1cd | 49 | emgFiltered2 = true; |
s1604554 | 7:f99e7ca907f1 | 50 | |
s1604554 | 6:7223ff6719b7 | 51 | } |
s1604554 | 6:7223ff6719b7 | 52 | } |
s1604554 | 6:7223ff6719b7 | 53 | |
s1604554 | 6:7223ff6719b7 | 54 | int main() |
s1604554 | 6:7223ff6719b7 | 55 | { |
s1604554 | 7:f99e7ca907f1 | 56 | |
s1604554 | 7:f99e7ca907f1 | 57 | led1 = 0; |
s1604554 | 6:7223ff6719b7 | 58 | led2 = 1; |
s1604554 | 7:f99e7ca907f1 | 59 | |
s1604554 | 8:3c9f2e6ea1cd | 60 | bqc.add( &bq1 ).add( &bq2 ).add( &bq3 ); |
s1604554 | 6:7223ff6719b7 | 61 | emgticker.attach(&Sample, 0.002); |
s1604554 | 7:f99e7ca907f1 | 62 | |
s1604554 | 7:f99e7ca907f1 | 63 | |
s1604554 | 6:7223ff6719b7 | 64 | while (true) { |
s1604554 | 6:7223ff6719b7 | 65 | |
s1604554 | 6:7223ff6719b7 | 66 | } |
s1604554 | 6:7223ff6719b7 | 67 | } |
s1604554 | 6:7223ff6719b7 | 68 | |
s1604554 | 6:7223ff6719b7 | 69 | |
s1604554 | 6:7223ff6719b7 | 70 | |
s1604554 | 6:7223ff6719b7 | 71 | |
s1604554 | 6:7223ff6719b7 | 72 | |
s1604554 | 6:7223ff6719b7 | 73 | |
s1604554 | 6:7223ff6719b7 | 74 | |
s1604554 | 6:7223ff6719b7 | 75 | |
s1604554 | 6:7223ff6719b7 | 76 | |
s1604554 | 6:7223ff6719b7 | 77 | |
s1604554 | 6:7223ff6719b7 | 78 | |
s1604554 | 6:7223ff6719b7 | 79 | |
s1604554 | 6:7223ff6719b7 | 80 | |
s1604554 | 6:7223ff6719b7 | 81 | |
s1604554 | 1:e7cf79380e24 | 82 | //int N = 50; |
s1604554 | 1:e7cf79380e24 | 83 | //double x = 2; |
s1604554 | 1:e7cf79380e24 | 84 | //double average; |
s1604554 | 0:eb47e42019a4 | 85 | |
s1604554 | 1:e7cf79380e24 | 86 | //for (int i = N;i<=10000;i++) |
s1604554 | 1:e7cf79380e24 | 87 | //{ |
s1604554 | 1:e7cf79380e24 | 88 | // average = sqrt(( pow(abs(M[i-49]),x)+pow(abs(M[i-48]),x)+pow(abs(M[i-47]),x)+pow(abs(M[i-46]),x)+pow(abs(M[i-45]),x)+pow(abs(M[i-44]),x)+pow(abs(M[i-43]),x)+pow(abs(M[i-42]),x)+pow(abs(M[i-41]),x)+pow(abs(M[i-40]),x)+pow(abs(M[i-39]),x)+pow(abs(M[i-38]),x)+pow(abs(M[i-37]),x)+pow(abs(M[i-36]),x)+pow(abs(M[i-35]),x)+pow(abs(M[i-34]),x)+pow(abs(M[i-33]),x)+pow(abs(M[i-32]),x)+pow(abs(M[i-31]),x)+pow(abs(M[i-30]),x)+pow(abs(M[i-29]),x)+pow(abs(M[i-28]),x)+pow(abs(M[i-27]),x)+pow(abs(M[i-26]),x)+pow(abs(M[i-25]),x)+pow(abs(M[i-24]),x)+pow(abs(M[i-23]),x)+pow(abs(M[i-22]),x)+pow(abs(M[i-21]),x)+pow(abs(M[i-20]),x)+pow(abs(M[i-19]),x)+pow(abs(M[i-18]),x)+pow(abs(M[i-17]),x)+pow(abs(M[i-16]),x)+pow(abs(M[i-15]),x)+pow(abs(M[i-14]),x)+pow(abs(M[i-13]),x)+pow(abs(M[i-12]),x)+pow(abs(M[i-11]),x)+pow(abs(M[i-10]),x)+pow(abs(M[i-9]),x)+pow(abs(M[i-8]),x)+pow(abs(M[i-7]),x)+pow(abs(M[i-6]),x)+pow(abs(M[i-5]),x)+pow(abs(M[i-4]),x)+pow(abs(M[i-3]),x)+pow(abs(M[i-2]),x)+pow(abs(M[i-1]),x)+pow(abs(M[i]),x))/static_cast<double>(N)); |
s1604554 | 1:e7cf79380e24 | 89 | |
s1604554 | 1:e7cf79380e24 | 90 | // } |
s1604554 | 1:e7cf79380e24 | 91 | |
s1604554 | 1:e7cf79380e24 | 92 | |
s1604554 | 0:eb47e42019a4 | 93 | //Full wave rectifier, moving average, and RMS |
s1604554 | 0:eb47e42019a4 | 94 | |
s1604554 | 0:eb47e42019a4 | 95 | |
s1604554 | 0:eb47e42019a4 | 96 |