uhd::usrp::cal::iq_cal Class Reference

#include <uhd/cal/iq_cal.hpp>

Inheritance diagram for uhd::usrp::cal::iq_cal:

Detailed Description

Class that stores IQ cal data per frequency

The following calibrations use this:

• Gen-2 and Gen-3 TX DC Offset
• Gen-2 and Gen-3 RX,TX IQ Imbalance

Public Types
using	sptr = std::shared_ptr< iq_cal >

Public Member Functions
virtual void	set_interp_mode (const uhd::math::interp_mode interp)=0
	Choose interpolation mode. More...
virtual std::complex< double >	get_cal_coeff (const double freq) const =0
	Return a calibration coefficient for a given frequency. More...
virtual void	set_cal_coeff (const double freq, const std::complex< double > coeff, const double suppression_abs=0, const double suppression_delta=0)=0
	Update / set a calbration coefficient. More...
virtual void	clear ()=0
	Clear the list of coefficients. More...
Public Member Functions inherited from uhd::usrp::cal::container
virtual	~container ()=default
virtual std::string	get_name () const =0
	Return the name of this calibration table. More...
virtual std::string	get_serial () const =0
	Return the device serial of this calibration table. More...
virtual uint64_t	get_timestamp () const =0
	Timestamp of acquisition time. More...
virtual std::vector< uint8_t >	serialize ()=0
	Return a serialized version of this container. More...
virtual void	deserialize (const std::vector< uint8_t > &data)=0
	Populate this class from the serialized data. More...

Static Public Member Functions
static sptr	make (const std::string &name, const std::string &serial, const uint64_t timestamp)
	Factory for new cal data sets. More...
static sptr	make ()
	Default factory. More...
Static Public Member Functions inherited from uhd::usrp::cal::container
template<typename container_type >
static std::shared_ptr< container_type >	make (const std::vector< uint8_t > &data)
	Generic factory for cal data from serialized data. More...

Member Typedef Documentation

sptr

using uhd::usrp::cal::iq_cal::sptr = std::shared_ptr<iq_cal>

Member Function Documentation

clear()

virtual void uhd::usrp::cal::iq_cal::clear ( )

pure virtual

Clear the list of coefficients.

This can be useful in order to drop existing cal data, and load an entirely new set with deserialize().

get_cal_coeff()

virtual std::complex<double> uhd::usrp::cal::iq_cal::get_cal_coeff ( const double  freq ) const

pure virtual

Return a calibration coefficient for a given frequency.

This function will interpolate to return a valid coefficient for any given frequency.

make() [1/2]

static sptr uhd::usrp::cal::iq_cal::make ( )

static

Default factory.

make() [2/2]

static sptr uhd::usrp::cal::iq_cal::make ( const std::string &  name, const std::string &  serial, const uint64_t  timestamp  )

static

Factory for new cal data sets.

Parameters

name	The name of the calibration data set
serial	The serial number of the daughterboard
timestamp	The timestamp of the calibration data

set_cal_coeff()

virtual void uhd::usrp::cal::iq_cal::set_cal_coeff ( const double  freq, const std::complex< double >  coeff, const double  suppression_abs = 0, const double  suppression_delta = 0  )

pure virtual

Update / set a calbration coefficient.

This usually only needs to called by calibration utilities.

Parameters

freq	The frequency at which this coefficient is measured
coeff	The value that is stored
suppression_abs	The amount of impairment suppression this coefficient provides, in dB.
suppression_delta	The difference of impairment power between applying this coefficient and applying none, in dB.

set_interp_mode()

virtual void uhd::usrp::cal::iq_cal::set_interp_mode ( const uhd::math::interp_mode  interp )

pure virtual

Choose interpolation mode.

This class supports two kinds of interpolation: Nearest-neighbour, and linear.

Parameters

interp

The new interpolation mode

Exceptions

uhd::value_error

if the given interpolation mode is not supported.

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The documentation for this class was generated from the following file:

• iq_cal.hpp