Add filter parameters and multicopter defaults to parametrize Pauls estimator correctly when running for multicopters. Estimator itself not updated yet, will be next step.

3 files changed, 181 insertions, 0 deletions

diff --git a/ROMFS/px4fmu_common/init.d/rc.mc_defaults b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
index 4db62607a..c1f9db7d1 100644
--- a/ROMFS/px4fmu_common/init.d/rc.mc_defaults
+++ b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
@@ -35,6 +35,12 @@ then
 	param set MPC_TILT_MAX 1.0
 	param set MPC_LAND_SPEED 1.0
 	param set MPC_LAND_TILT 0.3
+
+	param set PE_VELNE_NOISE 0.5
+	param set PE_VELNE_NOISE 0.7
+	param set PE_POSNE_NOISE 0.5
+	param set PE_POSD_NOISE 1.0
+
 fi
 
 set PWM_RATE 400
diff --git a/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp b/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp
index 840cd585e..96db3f20c 100644
--- a/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp
+++ b/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp
@@ -199,6 +199,17 @@ private:
 		int32_t	height_delay_ms;
 		int32_t	mag_delay_ms;
 		int32_t	tas_delay_ms;
+		float velne_noise;
+		float veld_noise;
+		float posne_noise;
+		float posd_noise;
+		float mag_noise;
+		float gyro_pnoise;
+		float acc_pnoise;
+		float gbias_pnoise;
+		float abias_pnoise;
+		float mage_pnoise;
+		float magb_pnoise;
 	}		_parameters;			/**< local copies of interesting parameters */
 
 	struct {
@@ -207,6 +218,17 @@ private:
 		param_t	height_delay_ms;
 		param_t	mag_delay_ms;
 		param_t	tas_delay_ms;
+		param_t velne_noise;
+		param_t veld_noise;
+		param_t posne_noise;
+		param_t posd_noise;
+		param_t mag_noise;
+		param_t gyro_pnoise;
+		param_t acc_pnoise;
+		param_t gbias_pnoise;
+		param_t abias_pnoise;
+		param_t mage_pnoise;
+		param_t magb_pnoise;
 	}		_parameter_handles;		/**< handles for interesting parameters */
 
 	AttPosEKF					*_ekf;
@@ -302,6 +324,17 @@ FixedwingEstimator::FixedwingEstimator() :
 	_parameter_handles.height_delay_ms = param_find("PE_HGT_DELAY_MS");
 	_parameter_handles.mag_delay_ms = param_find("PE_MAG_DELAY_MS");
 	_parameter_handles.tas_delay_ms = param_find("PE_TAS_DELAY_MS");
+	_parameter_handles.velne_noise = param_find("PE_VELNE_NOISE");
+	_parameter_handles.veld_noise = param_find("PE_VELD_NOISE");
+	_parameter_handles.posne_noise = param_find("PE_POSNE_NOISE");
+	_parameter_handles.posd_noise = param_find("PE_POSD_NOISE");
+	_parameter_handles.mag_noise = param_find("PE_MAG_NOISE");
+	_parameter_handles.gyro_pnoise = param_find("PE_GYRO_PNOISE");
+	_parameter_handles.acc_pnoise = param_find("PE_ACC_PNOISE");
+	_parameter_handles.gbias_pnoise = param_find("PE_GBIAS_PNOISE");
+	_parameter_handles.abias_pnoise = param_find("PE_ABIAS_PNOISE");
+	_parameter_handles.mage_pnoise = param_find("PE_MAGE_PNOISE");
+	_parameter_handles.magb_pnoise = param_find("PE_MAGB_PNOISE");
 
 	/* fetch initial parameter values */
 	parameters_update();
@@ -366,6 +399,17 @@ FixedwingEstimator::parameters_update()
 	param_get(_parameter_handles.height_delay_ms, &(_parameters.height_delay_ms));
 	param_get(_parameter_handles.mag_delay_ms, &(_parameters.mag_delay_ms));
 	param_get(_parameter_handles.tas_delay_ms, &(_parameters.tas_delay_ms));
+	param_get(_parameter_handles.velne_noise, &(_parameters.velne_noise));
+	param_get(_parameter_handles.veld_noise, &(_parameters.veld_noise));
+	param_get(_parameter_handles.posne_noise, &(_parameters.posne_noise));
+	param_get(_parameter_handles.posd_noise, &(_parameters.posd_noise));
+	param_get(_parameter_handles.mag_noise, &(_parameters.mag_noise));
+	param_get(_parameter_handles.gyro_pnoise, &(_parameters.gyro_pnoise));
+	param_get(_parameter_handles.acc_pnoise, &(_parameters.acc_pnoise));
+	param_get(_parameter_handles.gbias_pnoise, &(_parameters.gbias_pnoise));
+	param_get(_parameter_handles.abias_pnoise, &(_parameters.abias_pnoise));
+	param_get(_parameter_handles.mage_pnoise, &(_parameters.mage_pnoise));
+	param_get(_parameter_handles.magb_pnoise, &(_parameters.magb_pnoise));
 
 	return OK;
 }
diff --git a/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c b/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c
index 6138ef39c..9d01a095c 100644
--- a/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c
+++ b/src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c
@@ -115,3 +115,134 @@ PARAM_DEFINE_INT32(PE_TAS_DELAY_MS, 210);
  */
 PARAM_DEFINE_FLOAT(PE_GPS_ALT_WGT, 0.9f);
 
+/**
+ * Velocity noise in north-east (horizontal) direction.
+ *
+ * Generic default: 0.3, multicopters: 0.5, ground vehicles: 0.5
+ *
+ * @min 0.05
+ * @max 5.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_VELNE_NOISE, 0.3f);
+
+/**
+ * Velocity noise in down (vertical) direction
+ *
+ * Generic default: 0.5, multicopters: 0.7, ground vehicles: 0.7
+ *
+ * @min 0.05
+ * @max 5.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_VELD_NOISE, 0.5f);
+
+/**
+ * Position noise in north-east (horizontal) direction
+ *
+ * Generic defaults: 0.5, multicopters: 0.5, ground vehicles: 0.5
+ *
+ * @min 0.1
+ * @max 10.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_POSNE_NOISE, 0.5f);
+
+/**
+ * Position noise in down (vertical) direction
+ *
+ * Generic defaults: 0.5, multicopters: 1.0, ground vehicles: 1.0
+ *
+ * @min 0.1
+ * @max 10.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_POSD_NOISE, 0.5f);
+
+/**
+ * Magnetometer measurement noise
+ *
+ * Generic defaults: 0.05, multicopters: 0.05, ground vehicles: 0.05
+ *
+ * @min 0.1
+ * @max 10.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_MAG_NOISE, 0.05f);
+
+/**
+ * Gyro process noise
+ *
+ * Generic defaults: 0.015, multicopters: 0.015, ground vehicles: 0.015.
+ * This noise controls how much the filter trusts the gyro measurements.
+ * Increasing it makes the filter trust the gyro less and other sensors more.
+ *
+ * @min 0.001
+ * @max 0.05
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_GYRO_PNOISE, 0.015f);
+
+/**
+ * Accelerometer process noise
+ *
+ * Generic defaults: 0.25, multicopters: 0.25, ground vehicles: 0.25.
+ * Increasing this value makes the filter trust the accelerometer less
+ * and other sensors more.
+ *
+ * @min 0.05
+ * @max 1.0
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_ACC_PNOISE, 0.25f);
+
+/**
+ * Gyro bias estimate process noise
+ *
+ * Generic defaults: 1e-07f, multicopters: 1e-07f, ground vehicles: 1e-07f.
+ * Increasing this value will make the gyro bias converge faster but noisier.
+ *
+ * @min 0.0000001
+ * @max 0.00001
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_GBIAS_PNOISE, 1e-07f);
+
+/**
+ * Accelerometer bias estimate process noise
+ *
+ * Generic defaults: 0.0001f, multicopters: 0.0001f, ground vehicles: 0.0001f.
+ * Increasing this value makes the bias estimation faster and noisier.
+ *
+ * @min 0.0001
+ * @max 0.001
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_ABIAS_PNOISE, 0.0001f);
+
+/**
+ * Magnetometer earth frame offsets process noise
+ *
+ * Generic defaults: 0.0001, multicopters: 0.0001, ground vehicles: 0.0001.
+ * Increasing this value makes the magnetometer earth bias estimate converge
+ * faster but also noisier.
+ *
+ * @min 0.0001
+ * @max 0.01
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_MAGE_PNOISE, 0.0003f);
+
+/**
+ * Magnetometer body frame offsets process noise
+ *
+ * Generic defaults: 0.0003, multicopters: 0.0003, ground vehicles: 0.0003.
+ * Increasing this value makes the magnetometer body bias estimate converge faster
+ * but also noisier.
+ *
+ * @min 0.0001
+ * @max 0.01
+ * @group Position Estimator
+ */
+PARAM_DEFINE_FLOAT(PE_MAGB_PNOISE, 0.0003f);
+