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| author | Lorenz Meier <lm@inf.ethz.ch> | 2014-07-16 08:47:12 +0200 |
|---|---|---|
| committer | Lorenz Meier <lm@inf.ethz.ch> | 2014-07-16 08:47:12 +0200 |
| commit | b08e3d21cdca5c21396b47280b0958d6592a80d2 (patch) | |
| tree | 69a0245cebb0497cc33967e99af2055a3bd8cd39 /src/lib | |
| parent | 9470ac4e0f7ce9171789f1fed1a8c052db014773 (diff) | |
| download | px4-firmware-b08e3d21cdca5c21396b47280b0958d6592a80d2.tar.gz px4-firmware-b08e3d21cdca5c21396b47280b0958d6592a80d2.tar.bz2 px4-firmware-b08e3d21cdca5c21396b47280b0958d6592a80d2.zip | |
Making lowpass filter init bullet proof
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/mathlib/math/filter/LowPassFilter2p.hpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/lib/mathlib/math/filter/LowPassFilter2p.hpp b/src/lib/mathlib/math/filter/LowPassFilter2p.hpp index 74cd5d78c..436065175 100644 --- a/src/lib/mathlib/math/filter/LowPassFilter2p.hpp +++ b/src/lib/mathlib/math/filter/LowPassFilter2p.hpp @@ -46,10 +46,18 @@ class __EXPORT LowPassFilter2p { public: // constructor - LowPassFilter2p(float sample_freq, float cutoff_freq) { + LowPassFilter2p(float sample_freq, float cutoff_freq) : + _cutoff_freq(cutoff_freq), + _a1(0.0f), + _a2(0.0f), + _b0(0.0f), + _b1(0.0f), + _b2(0.0f), + _delay_element_1(0.0f), + _delay_element_2(0.0f) + { // set initial parameters set_cutoff_frequency(sample_freq, cutoff_freq); - _delay_element_1 = _delay_element_2 = 0; } /** |