SPUC::timing_nco Class Reference
[SPUC non-template classes, Simulation classes And functions]

A NCO for symbol recovery in a variable rate QPSK receiver. More...

#include <timing_nco.h>

List of all members.

Public Member Functions
	timing_nco (void)
void	set_frequency (unsigned long freq)
void	reset_frequency (unsigned long freq)
float_type	get_off1 (void)
float_type	get_off2 (void)
long	get_phase1 (void)
long	get_phase2 (void)
long	run (long loop_filter_out=0, int load=1)
signed long	residual_phase (signed long acc_value)
Protected Attributes
signed long	resid1
signed long	acc
unsigned long	fcw
unsigned long	new_fcw
signed long	phase1
signed long	phase2
signed long	new_phase
long	sample2

---

Detailed Description

A NCO for symbol recovery in a variable rate QPSK receiver.

Since interpolation is being done, either one or two samples must be calculated on each update. When sample2 is true, there are 2 samples available.

Author:

Tony Kirke, Copyright(c) 2001

Tony Kirke

---

Constructor & Destructor Documentation

SPUC::timing_nco::timing_nco

(

void

)

[inline]

---

Member Function Documentation

float_type SPUC::timing_nco::get_off1

(

void

)

[inline]

float_type SPUC::timing_nco::get_off2

(

void

)

[inline]

long SPUC::timing_nco::get_phase1

(

void

)

[inline]

long SPUC::timing_nco::get_phase2

(

void

)

[inline]

void SPUC::timing_nco::reset_frequency

(

unsigned long

freq

)

[inline]

signed long SPUC::timing_nco::residual_phase

(

signed long

acc_value

)

long SPUC::timing_nco::run	(	long	loop_filter_out = 0,
		int	load = 1
	)

void SPUC::timing_nco::set_frequency

(

unsigned long

freq

)

[inline]

---

Member Data Documentation

signed long SPUC::timing_nco::acc [protected]

unsigned long SPUC::timing_nco::fcw [protected]

unsigned long SPUC::timing_nco::new_fcw [protected]

signed long SPUC::timing_nco::new_phase [protected]

signed long SPUC::timing_nco::phase1 [protected]

signed long SPUC::timing_nco::phase2 [protected]

signed long SPUC::timing_nco::resid1 [protected]

long SPUC::timing_nco::sample2 [protected]

---

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

• timing_nco.h
• timing_nco.cpp

---