SpectrumDoubleChannel

#include “cspectrum_channel.h”

Signal spectrum data channel. Heir to the base class of DoubleChannel. channels. The spectrum is calculated based on the data source specified in the channel constructor.

Description

create_SpectrumDoubleChannel	Function. Creating a signal spectrum data channel. Creates a signal spectrum data channel. Options: *double_channel* Description: data channel Data type: DoubleChannel* *info* Description: channel information Data type: ChannelInfo Return value: Description: Signal spectrum data channel Data type: SpectrumDoubleChannel*.
SpectrumDoubleChannel_read_data	Function. Channel data request. Method that returns the requested amount of data. Options: *channel* Description: data channel pointer Data type: SpectrumDoubleChannel* *offset* Description: Offset from the start of data Data type: size_t *length* Description: The required number of signal samples. If there is not enough data in the channel, then they will be filled with zeros. Data type: size_t *out_buffer* Description: data array double, size of l*ength. Data type:* double * *buffer_size* Description: desired buffer size. Data type: size_t *samples_read* Description: size of data read. Data type: size_t * *window_type* Description: the type of window function used Data type: size_t * Return value: Description: An indication of an error. More details sdk_error Data type: int.
SpectrumDoubleChannel_get_hz_per_spectrum_sample	Function. Spectrum calculation step request. Method that returns the spectrum calculation step Options: *channel* Description: data channel pointer Data type: SpectrumDoubleChannel* *out_step* Description: spectrum calculation step Data type: double* Return value: Description: An indication of an error. More details sdk_error Data type: int.
SpectrumDoubleChannel_get_spectrum_length	Function. Window size query. Method that returns window size for spectrum calculation Options: *channel* Description: data channel pointer Data type: SpectrumDoubleChannel* *out_spectrum_length* Description: window size Data type: size_t* Return value: Description: An indication of an error. More details sdk_error Data type: int.