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Function rc_filter_butterworth_highpass

Function Documentation

int rc_filter_butterworth_highpass(rc_filter_t *f, int order, double dt, double wc)

Creates a Butterworth high pass filter of specified order and cutoff frequency.

Any existing memory allocated for f is freed safely to avoid memory leaks and new memory is allocated for the new filter.

  • f[out] Pointer to user’s rc_filter_t struct

  • order[in] The order (>=1)

  • dt[in] desired timestep of discrete filter in seconds

  • wc[in] Cuttoff freqauency in rad/s


Returns 0 on success or -1 on failure.