hpf_2.h File Reference

Second-order high-pass filter. More...

#include <cstdint>
#include "../../src/high_pass/hpf_2.tpp"

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Classes
class	filter::high_pass::HPF_2< T >
	Second-order high-pass filter. More...

Namespaces
namespace	filter
	Contains digital signal filtering algorithms.
namespace	filter::high_pass
namespace	high_pass
	Contains high-pass filter implementations.

Detailed Description

Second-order high-pass filter.

This file defines the filter::high_pass::HPF_2 class, which implements a discrete-time second-order high-pass filter.

The filter attenuates low-frequency and DC components while allowing high-frequency components of the input signal to pass.

The filter is configured using the cutoff frequency and sampling time. The cutoff frequency is prewarped during filter design to compensate for the frequency transformation associated with the bilinear transformation.

The implementation maintains previous input and output samples as internal filter state.

The class is templated to support different numeric types such as float and double.

Template Parameters

T	Numeric data type used for the filter calculations.

Author

Abhinay Kumar

Version

1.0.0

Copyright

Copyright (c) 2026 Abhinay Kumar

Definition in file hpf_2.h.