ifc/kalman__filter_8h_source.html

#ifndef KALMAN_FILTER_H

#define KALMAN_FILTER_H


#include <esp_err.h>


typedef struct {

  float x;

  float P;

  float Q;

  float R;

} kalman1d_t;


esp_err_t kalman1d_init(kalman1d_t *kf, float init_pressure,

                        float process_noise, float measurement_noise);


float kalman1d_update(kalman1d_t *kf, float z);


#endif // KALMAN_FILTER_H

kalman1d_init
esp_err_t kalman1d_init(kalman1d_t *kf, float init_pressure, float process_noise, float measurement_noise)
Initialize a 1D Kalman filter instance.
Definition kalman_filter.c:5

kalman1d_update
float kalman1d_update(kalman1d_t *kf, float z)
Perform a single Kalman filter update with a new measurement.
Definition kalman_filter.c:14

kalman1d_t
One-dimensional Kalman filter state.
Definition kalman_filter.h:14

kalman1d_t::P
float P
Estimate uncertainty (error covariance).
Definition kalman_filter.h:16

kalman1d_t::x
float x
State estimate (e.g., pressure).
Definition kalman_filter.h:15

kalman1d_t::R
float R
Measurement noise covariance.
Definition kalman_filter.h:18

kalman1d_t::Q
float Q
Process noise covariance.
Definition kalman_filter.h:17