pcps_acquisition Class Reference

This class implements a Parallel Code Phase Search Acquisition. More...

#include <pcps_acquisition.h>

Inheritance diagram for pcps_acquisition:

Public Member Functions
void	init ()
	Initializes acquisition algorithm and reserves memory. More...
void	set_gnss_synchro (Gnss_Synchro *p_gnss_synchro)
	Set acquisition/tracking common Gnss_Synchro object pointer to exchange synchronization data between acquisition and tracking blocks. More...
void	set_local_code (std::complex< float > *code)
	Sets local code for PCPS acquisition algorithm. More...
void	set_state (int32_t state)
	If set to 1, ensures that acquisition starts at the first available sample. More...
void	set_resampler_latency (uint32_t latency_samples)
uint32_t	mag () const
	Returns the maximum peak of grid search. More...
void	set_active (bool active)
	Starts acquisition algorithm, turning from standby mode to active mode. More...
void	set_channel (uint32_t channel)
	Set acquisition channel unique ID. More...
void	set_channel_fsm (std::weak_ptr< ChannelFsm > channel_fsm)
	Set channel fsm associated to this acquisition instance. More...
void	set_threshold (float threshold)
	Set statistics threshold of PCPS algorithm. More...
void	set_doppler_max (uint32_t doppler_max)
	Set maximum Doppler grid search. More...
void	set_doppler_step (uint32_t doppler_step)
	Set Doppler steps for the grid search. More...
void	set_doppler_center (int32_t doppler_center)
	Set Doppler center frequency for the grid search. It will refresh the Doppler grid. More...
int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) override
	Parallel Code Phase Search Acquisition signal processing. More...

Friends
pcps_acquisition_sptr	pcps_make_acquisition (const Acq_Conf &conf_)

Detailed Description

This class implements a Parallel Code Phase Search Acquisition.

Check An Open Source Galileo E1 Software Receiver, Algorithm 1, for a pseudocode description of this implementation.

Definition at line 92 of file pcps_acquisition.h.

Member Function Documentation

general_work()

int pcps_acquisition::general_work ( int  noutput_items, gr_vector_int &  ninput_items, gr_vector_const_void_star &  input_items, gr_vector_void_star &  output_items  )

override

Parallel Code Phase Search Acquisition signal processing.

init()

void pcps_acquisition::init

(

)

Initializes acquisition algorithm and reserves memory.

mag()

uint32_t pcps_acquisition::mag ( ) const

inline

Returns the maximum peak of grid search.

Definition at line 131 of file pcps_acquisition.h.

set_active()

void pcps_acquisition::set_active ( bool  active )

inline

Starts acquisition algorithm, turning from standby mode to active mode.

Parameters

active

- bool that activates/deactivates the block.

Definition at line 141 of file pcps_acquisition.h.

set_channel()

void pcps_acquisition::set_channel ( uint32_t  channel )

inline

Set acquisition channel unique ID.

Parameters

channel

- receiver channel.

Definition at line 151 of file pcps_acquisition.h.

set_channel_fsm()

void pcps_acquisition::set_channel_fsm ( std::weak_ptr< ChannelFsm >  channel_fsm )

inline

Set channel fsm associated to this acquisition instance.

Definition at line 159 of file pcps_acquisition.h.

set_doppler_center()

void pcps_acquisition::set_doppler_center ( int32_t  doppler_center )

inline

Set Doppler center frequency for the grid search. It will refresh the Doppler grid.

Parameters

doppler_center

- Frequency center of the search grid [Hz].

Definition at line 199 of file pcps_acquisition.h.

set_doppler_max()

void pcps_acquisition::set_doppler_max ( uint32_t  doppler_max )

inline

Set maximum Doppler grid search.

Parameters

doppler_max

- Maximum Doppler shift considered in the grid search [Hz].

Definition at line 179 of file pcps_acquisition.h.

set_doppler_step()

void pcps_acquisition::set_doppler_step ( uint32_t  doppler_step )

inline

Set Doppler steps for the grid search.

Parameters

doppler_step

- Frequency bin of the search grid [Hz].

Definition at line 189 of file pcps_acquisition.h.

set_gnss_synchro()

void pcps_acquisition::set_gnss_synchro ( Gnss_Synchro *  p_gnss_synchro )

inline

Set acquisition/tracking common Gnss_Synchro object pointer to exchange synchronization data between acquisition and tracking blocks.

Parameters

p_gnss_synchro

Satellite information shared by the processing blocks.

Definition at line 107 of file pcps_acquisition.h.

set_local_code()

void pcps_acquisition::set_local_code

(

std::complex< float > *

code

)

Sets local code for PCPS acquisition algorithm.

Parameters

code	- Pointer to the PRN code.

set_state()

void pcps_acquisition::set_state

(

int32_t

state

)

If set to 1, ensures that acquisition starts at the first available sample.

Parameters

state

- int=1 forces start of acquisition

set_threshold()

void pcps_acquisition::set_threshold ( float  threshold )

inline

Set statistics threshold of PCPS algorithm.

Parameters

threshold

- Threshold for signal detection (check Navitec2012, Algorithm 1, for a definition of this threshold).

Definition at line 169 of file pcps_acquisition.h.

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

• pcps_acquisition.h