void filter1_hp_init(Filter1 *filter, float fg, float Ts, int signal_dim)
{
/* calculate filter time constant */
float T = filter_constant(fg);
/* filter coefficients for 2nd order highpass filter */
float a[1];
a[0] = (2.0f * Ts) / (2.0f * T + Ts) - 1.0f;
float b[2];
b[0] = 2.0f / (2.0f * T + Ts);
b[1] = -b[0];
filter1_init(filter, a, b, Ts, signal_dim);
}
filter1Type *filter1_create( void )
{
filter1Type *result = (filter1Type *)malloc( sizeof( filter1Type ) ); // Allocate memory for the object
filter1_init( result ); // Initialize it
return result; // Return the result
}
