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

This commit is contained in:
Lorenz Meier 2014-04-19 15:49:29 +02:00
parent 12eae1777d
commit edd16afead
3 changed files with 181 additions and 0 deletions
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6
ROMFS/px4fmu_common/init.d/rc.mc_defaults
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@ -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

44
src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp
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@ -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;
}

131
src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c
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@ -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);