cppxdic::detail Namespace Reference

Functions
std::pair< std::vector< double >, std::vector< double > >	butterLowPass (int order, double wn)
	Design Butterworth filter coefficients.
std::vector< double >	filtfilt (const std::vector< double > &b, const std::vector< double > &a, const std::vector< double > &x)
	Zero-phase digital filtering (MATLAB filtfilt equivalent)
std::vector< double >	filter (const std::vector< double > &b, const std::vector< double > &a, const std::vector< double > &x)
	Forward IIR filter.

Function Documentation

butterLowPass()

std::pair< std::vector< double >, std::vector< double > > cppxdic::detail::butterLowPass	(	int	order,
		double	wn
	)

Design Butterworth filter coefficients.

Parameters

order	Filter order (typically 4)
wn	Normalized cutoff frequency (0 to 1, where 1 is Nyquist)

Returns

Pair of (numerator coefficients B, denominator coefficients A)

Definition at line 101 of file temporal_filter.cpp.

filter()

std::vector< double > cppxdic::detail::filter	(	const std::vector< double > &	b,
		const std::vector< double > &	a,
		const std::vector< double > &	x
	)

Forward IIR filter.

Definition at line 245 of file temporal_filter.cpp.

filtfilt()

std::vector< double > cppxdic::detail::filtfilt	(	const std::vector< double > &	b,
		const std::vector< double > &	a,
		const std::vector< double > &	x
	)

Zero-phase digital filtering (MATLAB filtfilt equivalent)

Parameters

b	Numerator coefficients
a	Denominator coefficients
x	Input signal

Returns

Filtered signal (same length as input)

Definition at line 251 of file temporal_filter.cpp.