MeteoIODoc 20241102.51576d50
ProcIIR.h
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1// SPDX-License-Identifier: LGPL-3.0-or-later
2/***********************************************************************************/
3/* Copyright 2009 WSL Institute for Snow and Avalanche Research SLF-DAVOS */
4/***********************************************************************************/
5/* This file is part of MeteoIO.
6 MeteoIO is free software: you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 MeteoIO is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with MeteoIO. If not, see <http://www.gnu.org/licenses/>.
18*/
19#ifndef PROCIIR_H
20#define PROCIIR_H
21
23#include <vector>
24#include <string>
25
26namespace mio {
27
55class ProcIIR : public ProcessingBlock {
56 public:
57 ProcIIR(const std::vector< std::pair<std::string, std::string> >& vecArgs, const std::string& name, const Config& cfg);
58
59 virtual void process(const unsigned int& param, const std::vector<MeteoData>& ivec,
60 std::vector<MeteoData>& ovec);
61
62 private:
63 typedef enum IIR_TYPE {
64 BUTTERWORTH,
65 CRITICALLY_DAMPED,
66 BESSEL
67 } IIR_Type;
68
69 static void getFilterParameters(const IIR_Type& i_type, const bool& isLowPass, const double& n, double &i_g, double &i_p, double &i_c);
70 static double filterPoint(const double& raw_val, const double A[3], const double B[3], std::vector<double> &X, std::vector<double> &Y);
71 void computeCoefficients(const double& fs, const double& f0, double A[3], double B[3]) const;
72
73 void parse_args(const std::vector< std::pair<std::string, std::string> >& vecArgs);
74
75 double cutoff;
76 double g, p, c;
77 IIR_Type type;
78 bool bidirectional, low_pass;
79};
80
81} //end namespace
82
83#endif
A class that reads a key/value file. These files (typically named *.ini) follow the INI file format s...
Definition: Config.h:79
Infinite Impulse Response (IIR) filter.
Definition: ProcIIR.h:55
virtual void process(const unsigned int &param, const std::vector< MeteoData > &ivec, std::vector< MeteoData > &ovec)
Definition: ProcIIR.cc:37
ProcIIR(const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &name, const Config &cfg)
Definition: ProcIIR.cc:27
The base class for all filters that provides the interface and a few helper methods.
Definition: ProcessingBlock.h:67
Definition: Config.cc:31