satcat5::ptp::CoeffPII Struct Reference

Detailed Description

Loop-filter coefficients for use with the "ControllerPII" class.

All floating-point calculations can be run at build-time. (This is also based on Stephens & Thomas 1995.)

Definition at line 295 of file ptp_filters.h.

#include <ptp_filters.h>

Public Member Functions
constexpr	CoeffPII (double tau_secs)
	Calculate tracking-loop coefficients.
	CoeffPII (const CoeffPII &t)=default
CoeffPII &	operator= (const CoeffPII &t)=default
bool	ok () const
	Are all coefficients large enough to mitigate rounding error?

Static Public Attributes
static constexpr unsigned	SCALE1 = 70
	Fixed-point scaling of each coefficient by 2^-N. More...
static constexpr unsigned	SCALE2 = 64
	Fixed-point scaling of each coefficient by 2^-N. More...
static constexpr unsigned	SCALE = SCALE1 + SCALE2
	Fixed-point scaling of each coefficient by 2^-N. More...

Static Protected Member Functions
static constexpr double	k1 (double tau)
static constexpr double	k2 (double tau)
static constexpr double	k3 (double tau)
static constexpr double	kratio (double tau)
static constexpr double	fw_gain ()

Protected Attributes
u64	kp
u64	ki
u64	kr

Member Data Documentation

SCALE

constexpr unsigned satcat5::ptp::CoeffPII::SCALE = SCALE1 + SCALE2

staticconstexpr

Fixed-point scaling of each coefficient by 2^-N.

Optimized for time constants circa 1-3600 seconds.

Definition at line 314 of file ptp_filters.h.

SCALE1

constexpr unsigned satcat5::ptp::CoeffPII::SCALE1 = 70

staticconstexpr

Fixed-point scaling of each coefficient by 2^-N.

Optimized for time constants circa 1-3600 seconds.

Definition at line 312 of file ptp_filters.h.

SCALE2

constexpr unsigned satcat5::ptp::CoeffPII::SCALE2 = 64

staticconstexpr

Fixed-point scaling of each coefficient by 2^-N.

Optimized for time constants circa 1-3600 seconds.

Definition at line 313 of file ptp_filters.h.

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

• ptp_filters.h