Jon Buckman / MovingAverageFilter

Simple moving average filter.

MAF.h@1:fbc57eb4e61d, 2013-05-05 (annotated)

Committer:
KarimAzzouz
Date:
Sun May 05 13:31:02 2013 +0000
Revision:
1:fbc57eb4e61d
Parent:
0:c1b48befe066
Child:
2:21b70641f866
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
KarimAzzouz 1:fbc57eb4e61d 1 /* Copyright (c) <2012> MIT License
KarimAzzouz 1:fbc57eb4e61d 2 *
KarimAzzouz 1:fbc57eb4e61d 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
KarimAzzouz 1:fbc57eb4e61d 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
KarimAzzouz 1:fbc57eb4e61d 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
KarimAzzouz 1:fbc57eb4e61d 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
KarimAzzouz 1:fbc57eb4e61d 7 * furnished to do so, subject to the following conditions:
KarimAzzouz 1:fbc57eb4e61d 8 *
KarimAzzouz 1:fbc57eb4e61d 9 * The above copyright notice and this permission notice shall be included in all copies or
KarimAzzouz 1:fbc57eb4e61d 10 * substantial portions of the Software.
KarimAzzouz 1:fbc57eb4e61d 11 *
KarimAzzouz 1:fbc57eb4e61d 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
KarimAzzouz 1:fbc57eb4e61d 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
KarimAzzouz 1:fbc57eb4e61d 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
KarimAzzouz 1:fbc57eb4e61d 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
KarimAzzouz 1:fbc57eb4e61d 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
KarimAzzouz 1:fbc57eb4e61d 17 *
KarimAzzouz 1:fbc57eb4e61d 18 * @section DESCRIPTION
KarimAzzouz 1:fbc57eb4e61d 19 *
KarimAzzouz 1:fbc57eb4e61d 20 * Moving Average Filter
KarimAzzouz 1:fbc57eb4e61d 21 *
KarimAzzouz 1:fbc57eb4e61d 22 *
KarimAzzouz 1:fbc57eb4e61d 23 */
KarimAzzouz 1:fbc57eb4e61d 24
KarimAzzouz 0:c1b48befe066 25 #ifndef MAF_H
KarimAzzouz 0:c1b48befe066 26 #define MAF_H
KarimAzzouz 0:c1b48befe066 27
KarimAzzouz 0:c1b48befe066 28 #include "mbed.h"
KarimAzzouz 0:c1b48befe066 29
KarimAzzouz 1:fbc57eb4e61d 30 /** 10-Point Moving Average filter
KarimAzzouz 1:fbc57eb4e61d 31 *
KarimAzzouz 1:fbc57eb4e61d 32 * Example:
KarimAzzouz 1:fbc57eb4e61d 33 * @code
KarimAzzouz 1:fbc57eb4e61d 34 * // Update the filter with gyroscope readings
KarimAzzouz 1:fbc57eb4e61d 35 * #include "mbed.h"
KarimAzzouz 1:fbc57eb4e61d 36 * #include "ITG3200.h"
KarimAzzouz 1:fbc57eb4e61d 37 * #include "MAF.h"
KarimAzzouz 1:fbc57eb4e61d 38 *
KarimAzzouz 1:fbc57eb4e61d 39 * Serial pc(USBTX, USBRX);
KarimAzzouz 1:fbc57eb4e61d 40 * ITG3200 gyro(p9, p10);
KarimAzzouz 1:fbc57eb4e61d 41 * MAF Filter();
KarimAzzouz 1:fbc57eb4e61d 42 * int Average;
KarimAzzouz 1:fbc57eb4e61d 43 *
KarimAzzouz 1:fbc57eb4e61d 44 * int main() {
KarimAzzouz 1:fbc57eb4e61d 45 *
KarimAzzouz 1:fbc57eb4e61d 46 * gyro.setLpBandwidth(LPFBW_42HZ);
KarimAzzouz 1:fbc57eb4e61d 47 *
KarimAzzouz 1:fbc57eb4e61d 48 * while(1){
KarimAzzouz 1:fbc57eb4e61d 49 *
KarimAzzouz 1:fbc57eb4e61d 50 * Average = Filter.updateInt(gyro.getGyroX());
KarimAzzouz 1:fbc57eb4e61d 51 * pc.printf("%i\n",Average);
KarimAzzouz 1:fbc57eb4e61d 52 * wait_ms(50);
KarimAzzouz 1:fbc57eb4e61d 53 * }
KarimAzzouz 1:fbc57eb4e61d 54 * }
KarimAzzouz 1:fbc57eb4e61d 55 * @endcode
KarimAzzouz 1:fbc57eb4e61d 56 */
KarimAzzouz 0:c1b48befe066 57 class MAF {
KarimAzzouz 0:c1b48befe066 58
KarimAzzouz 0:c1b48befe066 59 public:
KarimAzzouz 1:fbc57eb4e61d 60
KarimAzzouz 1:fbc57eb4e61d 61 /* Creates a 10-Point Moving Average Filter object
KarimAzzouz 1:fbc57eb4e61d 62 *
KarimAzzouz 1:fbc57eb4e61d 63 */
KarimAzzouz 0:c1b48befe066 64 MAF(void);
KarimAzzouz 1:fbc57eb4e61d 65
KarimAzzouz 1:fbc57eb4e61d 66 /* Updates the filter
KarimAzzouz 1:fbc57eb4e61d 67 * @param data new data input for the filter,returns the float average
KarimAzzouz 1:fbc57eb4e61d 68 */
KarimAzzouz 1:fbc57eb4e61d 69 float update(float data);
KarimAzzouz 1:fbc57eb4e61d 70
KarimAzzouz 1:fbc57eb4e61d 71 /* Updates the filter
KarimAzzouz 1:fbc57eb4e61d 72 * @param data new data input for the filter, returns the integer average
KarimAzzouz 1:fbc57eb4e61d 73 */
KarimAzzouz 1:fbc57eb4e61d 74 int updateInt(int data);
KarimAzzouz 0:c1b48befe066 75
KarimAzzouz 0:c1b48befe066 76 private :
KarimAzzouz 1:fbc57eb4e61d 77
KarimAzzouz 1:fbc57eb4e61d 78 float _k[10];
KarimAzzouz 1:fbc57eb4e61d 79 int _a[10];
KarimAzzouz 1:fbc57eb4e61d 80
KarimAzzouz 0:c1b48befe066 81 float _result;
KarimAzzouz 1:fbc57eb4e61d 82 int _resultInt;
KarimAzzouz 0:c1b48befe066 83 };
KarimAzzouz 0:c1b48befe066 84
KarimAzzouz 0:c1b48befe066 85 #endif