diff options
Diffstat (limited to 'src/noise.h')
-rw-r--r-- | src/noise.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/noise.h b/src/noise.h new file mode 100644 index 0000000..e0b9980 --- /dev/null +++ b/src/noise.h @@ -0,0 +1,72 @@ +/* noise.h -- noisy data + * Copyright (C) 2013 Galois, Inc. + * + * This library is free software: you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free Software + * Foundation, either version 3 of the License, or (at your option) any later + * version. + * + * This library is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along with + * this library. If not, see <http://www.gnu.org/licenses/>. + * + * To contact Galois, complete the Web form at <http://corp.galois.com/contact/> + * or write to Galois, Inc., 421 Southwest 6th Avenue, Suite 300, Portland, + * Oregon, 97204-1622. */ + +#ifndef PPAML_VREP_AUTOMOBILE_PLUGIN_NOISE_H +#define PPAML_VREP_AUTOMOBILE_PLUGIN_NOISE_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <random> +#include <stdexcept> +#include <string> +#include <vector> + +#include "csv.h" +#include "measurement.h" + + +// Noise sources // + +template<typename RealType = double> +class GaussianNoiseSource { +public: + inline GaussianNoiseSource(RealType mean, RealType stddev); + inline RealType get(); + +private: + std::mt19937 generator; + std::normal_distribution<RealType> distribution; +}; + +/* Convenience function to construct a GaussianNoiseSource<float> from a + * two-element float vector representing mean and standard deviation. + * Throws a std::invalid_argument if the vector is of the wrong + * length. */ +inline GaussianNoiseSource<float> gaussian(const std::vector<float>); + + +// Noisy values // + +// Adds noise to a value. +Pose addNoise(const Pose &, GaussianNoiseSource<float> &positionNoise, + GaussianNoiseSource<float> &angleNoise); +ControlSignals addNoise(const ControlSignals &, + GaussianNoiseSource<float> &speedNoise, + GaussianNoiseSource<float> &steeringAngleNoise); +LidarDatum addNoise(const LidarDatum &, + GaussianNoiseSource<float> &distanceNoise, + GaussianNoiseSource<float> &intensityNoise); + + +#include "noise-inl.h" + +#endif |