gr::digital::pfb_clock_sync_fff
gr::block
gnuradio/digital/pfb_clock_sync_fff.h
std::shared_ptr< pfb_clock_sync_fff > typedef std::shared_ptr<pfb_clock_sync_fff> gr::digital::pfb_clock_sync_fff::sptr sptr gr::digital::pfb_clock_sync_fff::sptr
sptr static sptr gr::digital::pfb_clock_sync_fff::make (double sps, float gain, const std::vector< float > &taps, unsigned int filter_size=32, float init_phase=0, float max_rate_deviation=1.5, int osps=1) make gr::digital::pfb_clock_sync_fff::make double sps float gain const std::vector< float > & taps unsigned int filter_size 32 float init_phase 0 float max_rate_deviation 1.5 int osps 1

Build the polyphase filterbank timing synchronizer. sps

(double) The number of samples per second in the incoming signal

gain

(float) The alpha gain of the control loop; beta = (gain^2)/4 by default.

taps

(vector<int>) The filter taps.

filter_size

(uint) The number of filters in the filterbank (default = 32).

init_phase

(float) The initial phase to look at, or which filter to start with (default = 0).

max_rate_deviation

(float) Distance from 0 d_rate can get (default = 1.5).

osps

(int) The number of output samples per symbol (default=1).

taps
void virtual void gr::digital::pfb_clock_sync_fff::update_gains ()=0 update_gains gr::digital::pfb_clock_sync_fff::update_gains

update the system gains from omega and eta

This function updates the system gains based on the loop bandwidth and damping factor of the system. These two factors can be set separately through their own set functions.

void virtual void gr::digital::pfb_clock_sync_fff::update_taps (const std::vector< float > &taps)=0 update_taps gr::digital::pfb_clock_sync_fff::update_taps const std::vector< float > & taps

Resets the filterbank's filter taps with the new prototype filter.

taps
std::vector< std::vector< float > > virtual std::vector< std::vector< float > > gr::digital::pfb_clock_sync_fff::taps () const =0 taps gr::digital::pfb_clock_sync_fff::taps

Returns all of the taps of the matched filter

make
update_taps
std::vector< std::vector< float > > virtual std::vector< std::vector< float > > gr::digital::pfb_clock_sync_fff::diff_taps () const =0 diff_taps gr::digital::pfb_clock_sync_fff::diff_taps

Returns all of the taps of the derivative filter

std::vector< float > virtual std::vector< float > gr::digital::pfb_clock_sync_fff::channel_taps (int channel) const =0 channel_taps gr::digital::pfb_clock_sync_fff::channel_taps int channel

Returns the taps of the matched filter for a particular channel

std::vector< float > virtual std::vector< float > gr::digital::pfb_clock_sync_fff::diff_channel_taps (int channel) const =0 diff_channel_taps gr::digital::pfb_clock_sync_fff::diff_channel_taps int channel

Returns the taps in the derivative filter for a particular channel

std::string virtual std::string gr::digital::pfb_clock_sync_fff::taps_as_string () const =0 taps_as_string gr::digital::pfb_clock_sync_fff::taps_as_string

Return the taps as a formatted string for printing

std::string virtual std::string gr::digital::pfb_clock_sync_fff::diff_taps_as_string () const =0 diff_taps_as_string gr::digital::pfb_clock_sync_fff::diff_taps_as_string

Return the derivative filter taps as a formatted string for printing

void virtual void gr::digital::pfb_clock_sync_fff::set_loop_bandwidth (float bw)=0 set_loop_bandwidth gr::digital::pfb_clock_sync_fff::set_loop_bandwidth float bw

Set the loop bandwidth.

Set the loop filter's bandwidth to `bw`. This should be between 2*pi/200 and 2*pi/100 (in rads/samp). It must also be a positive number.

When a new damping factor is set, the gains, alpha and beta, of the loop are recalculated by a call to update_gains().

bw

(float) new bandwidth

void virtual void gr::digital::pfb_clock_sync_fff::set_damping_factor (float df)=0 set_damping_factor gr::digital::pfb_clock_sync_fff::set_damping_factor float df

Set the loop damping factor.

Set the loop filter's damping factor to `df`. The damping factor should be sqrt(2)/2.0 for critically damped systems. Set it to anything else only if you know what you are doing. It must be a number between 0 and 1.

When a new damping factor is set, the gains, alpha and beta, of the loop are recalculated by a call to update_gains().

df

(float) new damping factor

void virtual void gr::digital::pfb_clock_sync_fff::set_alpha (float alpha)=0 set_alpha gr::digital::pfb_clock_sync_fff::set_alpha float alpha

Set the loop gain alpha.

Set's the loop filter's alpha gain parameter.

This value should really only be set by adjusting the loop bandwidth and damping factor.

alpha

(float) new alpha gain

alpha
void virtual void gr::digital::pfb_clock_sync_fff::set_beta (float beta)=0 set_beta gr::digital::pfb_clock_sync_fff::set_beta float beta

Set the loop gain beta.

Set's the loop filter's beta gain parameter.

This value should really only be set by adjusting the loop bandwidth and damping factor.

beta

(float) new beta gain

beta
void virtual void gr::digital::pfb_clock_sync_fff::set_max_rate_deviation (float m)=0 set_max_rate_deviation gr::digital::pfb_clock_sync_fff::set_max_rate_deviation float m

Set the maximum deviation from 0 d_rate can have

float virtual float gr::digital::pfb_clock_sync_fff::loop_bandwidth () const =0 loop_bandwidth gr::digital::pfb_clock_sync_fff::loop_bandwidth

Returns the loop bandwidth.

float virtual float gr::digital::pfb_clock_sync_fff::damping_factor () const =0 damping_factor gr::digital::pfb_clock_sync_fff::damping_factor

Returns the loop damping factor.

float virtual float gr::digital::pfb_clock_sync_fff::alpha () const =0 alpha gr::digital::pfb_clock_sync_fff::alpha

Returns the loop gain alpha.

set_alpha
float virtual float gr::digital::pfb_clock_sync_fff::beta () const =0 beta gr::digital::pfb_clock_sync_fff::beta

Returns the loop gain beta.

set_beta
float virtual float gr::digital::pfb_clock_sync_fff::clock_rate () const =0 clock_rate gr::digital::pfb_clock_sync_fff::clock_rate

Returns the current clock rate.

Timing synchronizer using polyphase filterbanks.

This block performs timing synchronization for PAM signals by minimizing the derivative of the filtered signal, which in turn maximizes the SNR and minimizes ISI.

This approach works by setting up two filterbanks; one filterbank contains the signal's pulse shaping matched filter (such as a root raised cosine filter), where each branch of the filterbank contains a different phase of the filter. The second filterbank contains the derivatives of the filters in the first filterbank. Thinking of this in the time domain, the first filterbank contains filters that have a sinc shape to them. We want to align the output signal to be sampled at exactly the peak of the sinc shape. The derivative of the sinc contains a zero at the maximum point of the sinc (sinc(0) = 1, sinc(0)' = 0). Furthermore, the region around the zero point is relatively linear. We make use of this fact to generate the error signal.

If the signal out of the derivative filters is d_i[n] for the ith filter, and the output of the matched filter is x_i[n], we calculate the error as: e[n] = (Re{x_i[n]} * Re{d_i[n]} + Im{x_i[n]} * Im{d_i[n]}) / 2.0 This equation averages the error in the real and imaginary parts. There are two reasons we multiply by the signal itself. First, if the symbol could be positive or negative going, but we want the error term to always tell us to go in the same direction depending on which side of the zero point we are on. The sign of x_i[n] adjusts the error term to do this. Second, the magnitude of x_i[n] scales the error term depending on the symbol's amplitude, so larger signals give us a stronger error term because we have more confidence in that symbol's value. Using the magnitude of x_i[n] instead of just the sign is especially good for signals with low SNR.

The error signal, e[n], gives us a value proportional to how far away from the zero point we are in the derivative signal. We want to drive this value to zero, so we set up a second order loop. We have two variables for this loop; d_k is the filter number in the filterbank we are on and d_rate is the rate which we travel through the filters in the steady state. That is, due to the natural clock differences between the transmitter and receiver, d_rate represents that difference and would traverse the filter phase paths to keep the receiver locked. Thinking of this as a second-order PLL, the d_rate is the frequency and d_k is the phase. So we update d_rate and d_k using the standard loop equations based on two error signals, d_alpha and d_beta. We have these two values set based on each other for a critically damped system, so in the block constructor, we just ask for "gain," which is d_alpha while d_beta is equal to (gain^2)/4.

The block's parameters are:

- `sps:` The clock sync block needs to know the number of samples per symbol, because it defaults to return a single point representing the symbol. The sps can be any positive real number and does not need to be an integer.

- `loop_bw:` The loop bandwidth is used to set the gain of the inner control loop (see: http://gnuradio.squarespace.com/blog/2011/8/13/control-loop-gain-values.html). This should be set small (a value of around 2pi/100 is suggested in that blog post as the step size for the number of radians around the unit circle to move relative to the error).

- `taps:` One of the most important parameters for this block is the taps of the filter. One of the benefits of this algorithm is that you can put the matched filter in here as the taps, so you get both the matched filter and sample timing correction in one go. So create your normal matched filter. For a typical digital modulation, this is a root raised cosine filter. The number of taps of this filter is based on how long you expect the channel to be; that is, how many symbols do you want to combine to get the current symbols energy back (there's probably a better way of stating that). It's usually 5 to 10 or so. That gives you your filter, but now we need to think about it as a filter with different phase profiles in each filter. So take this number of taps and multiply it by the number of filters. This is the number you would use to create your prototype filter. When you use this in the PFB filerbank, it segments these taps into the filterbanks in such a way that each bank now represents the filter at different phases, equally spaced at 2pi/N, where N is the number of filters.

- `filter_size` (default=32): The number of filters can also be set and defaults to 32. With 32 filters, you get a good enough resolution in the phase to produce very small, almost unnoticeable, ISI. Going to 64 filters can reduce this more, but after that there is very little gained for the extra complexity.

- `init_phase` (default=0): The initial phase is another settable parameter and refers to the filter path the algorithm initially looks at (i.e., d_k starts at init_phase). This value defaults to zero, but it might be useful to start at a different phase offset, such as the mid-point of the filters.

- `max_rate_deviation` (default=1.5): The next parameter is the max_rate_devitation, which defaults to 1.5. This is how far we allow d_rate to swing, positive or negative, from

  1. Constraining the rate can help keep the algorithm from walking too far away to lock during times when there is no signal.

- `osps` (default=1): The osps is the number of output samples per symbol. By default, the algorithm produces 1 sample per symbol, sampled at the exact sample value. This osps value was added to better work with equalizers, which do a better job of modeling the channel if they have 2 samps/sym.

Reference: f. j. harris and M. Rice, "Multirate Digital Filters for Symbol Timing Synchronization in Software Defined Radios", IEEE Selected Areas in Communications, Vol. 19, No. 12, Dec., 2001.

http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.127.1757

gr::basic_block
gr::block
gr::digital::pfb_clock_sync_fff
gr::messages::msg_accepter
gr::msg_accepter
std::enable_shared_from_this< basic_block >
gr::basic_block
d_name
d_symbol_alias
d_symbol_name
d_input_signature
d_output_signature
d_debug_logger
d_logger
msg_queue
d_rpc_vars
d_message_subscribers
gr::block
d_max_output_buffer
d_min_output_buffer
d_pmt_done
d_system_port
gr::digital::pfb_clock_sync_fff
gr::messages::msg_accepter
gr::msg_accepter
std::basic_string< Char >
std::enable_shared_from_this< basic_block >
std::map< pmt::pmt_t, msg_queue_t, msg_queue_comparator >
std::shared_ptr< io_signature >
std::shared_ptr< logger >
std::shared_ptr< pmt_base >
std::shared_ptr< rpcbasic_base >
std::string
std::vector< long >
std::vector< rpcbasic_sptr >
elements
p
- gr::digital::pfb_clock_sync_fff
  _post
- gr::digital::pfb_clock_sync_fff
  active_thread_priority
- gr::digital::pfb_clock_sync_fff
  add_item_tag
- gr::digital::pfb_clock_sync_fff
  add_item_tag
- gr::digital::pfb_clock_sync_fff
  alias
- gr::digital::pfb_clock_sync_fff
  alias_pmt
- gr::digital::pfb_clock_sync_fff
  alias_set
- gr::digital::pfb_clock_sync_fff
  alignment
- gr::digital::pfb_clock_sync_fff
  allocate_buffer
- gr::digital::pfb_clock_sync_fff
  allocate_detail
- gr::digital::pfb_clock_sync_fff
  alpha
- gr::digital::pfb_clock_sync_fff
  basic_block
- gr::digital::pfb_clock_sync_fff
  basic_block
- gr::digital::pfb_clock_sync_fff
  beta
- gr::digital::pfb_clock_sync_fff
  BLACK
- gr::digital::pfb_clock_sync_fff
  blkd_input_timer_value
- gr::digital::pfb_clock_sync_fff
  block
- gr::digital::pfb_clock_sync_fff
  block
- gr::digital::pfb_clock_sync_fff
  channel_taps
- gr::digital::pfb_clock_sync_fff
  check_topology
- gr::digital::pfb_clock_sync_fff
  clear_finished
- gr::digital::pfb_clock_sync_fff
  clock_rate
- gr::digital::pfb_clock_sync_fff
  color
- gr::digital::pfb_clock_sync_fff
  consume
- gr::digital::pfb_clock_sync_fff
  consume_each
- gr::digital::pfb_clock_sync_fff
  d_blkd_input_timer_value
- gr::digital::pfb_clock_sync_fff
  d_color
- gr::digital::pfb_clock_sync_fff
  d_debug_logger
- gr::digital::pfb_clock_sync_fff
  d_input_signature
- gr::digital::pfb_clock_sync_fff
  d_logger
- gr::digital::pfb_clock_sync_fff
  d_max_output_buffer
- gr::digital::pfb_clock_sync_fff
  d_message_subscribers
- gr::digital::pfb_clock_sync_fff
  d_min_output_buffer
- gr::digital::pfb_clock_sync_fff
  d_name
- gr::digital::pfb_clock_sync_fff
  d_output_signature
- gr::digital::pfb_clock_sync_fff
  d_pmt_done
- gr::digital::pfb_clock_sync_fff
  d_rpc_set
- gr::digital::pfb_clock_sync_fff
  d_rpc_vars
- gr::digital::pfb_clock_sync_fff
  d_setlock
- gr::digital::pfb_clock_sync_fff
  d_symbol_alias
- gr::digital::pfb_clock_sync_fff
  d_symbol_name
- gr::digital::pfb_clock_sync_fff
  d_symbolic_id
- gr::digital::pfb_clock_sync_fff
  d_system_port
- gr::digital::pfb_clock_sync_fff
  d_unique_id
- gr::digital::pfb_clock_sync_fff
  damping_factor
- gr::digital::pfb_clock_sync_fff
  declare_sample_delay
- gr::digital::pfb_clock_sync_fff
  declare_sample_delay
- gr::digital::pfb_clock_sync_fff
  delete_head_nowait
- gr::digital::pfb_clock_sync_fff
  detail
- gr::digital::pfb_clock_sync_fff
  diff_channel_taps
- gr::digital::pfb_clock_sync_fff
  diff_taps
- gr::digital::pfb_clock_sync_fff
  diff_taps_as_string
- gr::digital::pfb_clock_sync_fff
  dispatch_msg
- gr::digital::pfb_clock_sync_fff
  empty_handled_p
- gr::digital::pfb_clock_sync_fff
  empty_handled_p
- gr::digital::pfb_clock_sync_fff
  empty_p
- gr::digital::pfb_clock_sync_fff
  empty_p
- gr::digital::pfb_clock_sync_fff
  enable_update_rate
- gr::digital::pfb_clock_sync_fff
  erase_msg
- gr::digital::pfb_clock_sync_fff
  expand_minmax_buffer
- gr::digital::pfb_clock_sync_fff
  finished
- gr::digital::pfb_clock_sync_fff
  fixed_rate
- gr::digital::pfb_clock_sync_fff
  fixed_rate_ninput_to_noutput
- gr::digital::pfb_clock_sync_fff
  fixed_rate_noutput_to_ninput
- gr::digital::pfb_clock_sync_fff
  forecast
- gr::digital::pfb_clock_sync_fff
  general_work
- gr::digital::pfb_clock_sync_fff
  get_iterator
- gr::digital::pfb_clock_sync_fff
  get_msg_map
- gr::digital::pfb_clock_sync_fff
  get_tags_in_range
- gr::digital::pfb_clock_sync_fff
  get_tags_in_range
- gr::digital::pfb_clock_sync_fff
  get_tags_in_window
- gr::digital::pfb_clock_sync_fff
  get_tags_in_window
- gr::digital::pfb_clock_sync_fff
  GREY
- gr::digital::pfb_clock_sync_fff
  has_msg_handler
- gr::digital::pfb_clock_sync_fff
  has_msg_port
- gr::digital::pfb_clock_sync_fff
  history
- gr::digital::pfb_clock_sync_fff
  identifier
- gr::digital::pfb_clock_sync_fff
  input_signature
- gr::digital::pfb_clock_sync_fff
  insert_tail
- gr::digital::pfb_clock_sync_fff
  is_pc_rpc_set
- gr::digital::pfb_clock_sync_fff
  is_rpc_set
- gr::digital::pfb_clock_sync_fff
  is_set_max_noutput_items
- gr::digital::pfb_clock_sync_fff
  is_unaligned
- gr::digital::pfb_clock_sync_fff
  log_level
- gr::digital::pfb_clock_sync_fff
  loop_bandwidth
- gr::digital::pfb_clock_sync_fff
  make
- gr::digital::pfb_clock_sync_fff
  max_noutput_items
- gr::digital::pfb_clock_sync_fff
  max_output_buffer
- gr::digital::pfb_clock_sync_fff
  message_port_is_hier
- gr::digital::pfb_clock_sync_fff
  message_port_is_hier_in
- gr::digital::pfb_clock_sync_fff
  message_port_is_hier_out
- gr::digital::pfb_clock_sync_fff
  message_port_pub
- gr::digital::pfb_clock_sync_fff
  message_port_register_in
- gr::digital::pfb_clock_sync_fff
  message_port_register_out
- gr::digital::pfb_clock_sync_fff
  message_port_sub
- gr::digital::pfb_clock_sync_fff
  message_port_unsub
- gr::digital::pfb_clock_sync_fff
  message_ports_in
- gr::digital::pfb_clock_sync_fff
  message_ports_out
- gr::digital::pfb_clock_sync_fff
  message_subscribers
- gr::digital::pfb_clock_sync_fff
  min_noutput_items
- gr::digital::pfb_clock_sync_fff
  min_output_buffer
- gr::digital::pfb_clock_sync_fff
  mp_relative_rate
- gr::digital::pfb_clock_sync_fff
  msg_accepter
- gr::digital::pfb_clock_sync_fff
  msg_queue
- gr::digital::pfb_clock_sync_fff
  name
- gr::digital::pfb_clock_sync_fff
  nitems_read
- gr::digital::pfb_clock_sync_fff
  nitems_written
- gr::digital::pfb_clock_sync_fff
  nmsgs
- gr::digital::pfb_clock_sync_fff
  no_pc_rpc
- gr::digital::pfb_clock_sync_fff
  notify_msg_neighbors
- gr::digital::pfb_clock_sync_fff
  output_multiple
- gr::digital::pfb_clock_sync_fff
  output_multiple_set
- gr::digital::pfb_clock_sync_fff
  output_signature
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full_avg
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full_avg
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full_var
- gr::digital::pfb_clock_sync_fff
  pc_input_buffers_full_var
- gr::digital::pfb_clock_sync_fff
  pc_noutput_items
- gr::digital::pfb_clock_sync_fff
  pc_noutput_items_avg
- gr::digital::pfb_clock_sync_fff
  pc_noutput_items_var
- gr::digital::pfb_clock_sync_fff
  pc_nproduced
- gr::digital::pfb_clock_sync_fff
  pc_nproduced_avg
- gr::digital::pfb_clock_sync_fff
  pc_nproduced_var
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full_avg
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full_avg
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full_var
- gr::digital::pfb_clock_sync_fff
  pc_output_buffers_full_var
- gr::digital::pfb_clock_sync_fff
  pc_throughput_avg
- gr::digital::pfb_clock_sync_fff
  pc_work_time
- gr::digital::pfb_clock_sync_fff
  pc_work_time_avg
- gr::digital::pfb_clock_sync_fff
  pc_work_time_total
- gr::digital::pfb_clock_sync_fff
  pc_work_time_var
- gr::digital::pfb_clock_sync_fff
  post
- gr::digital::pfb_clock_sync_fff
  processor_affinity
- gr::digital::pfb_clock_sync_fff
  produce
- gr::digital::pfb_clock_sync_fff
  relative_rate
- gr::digital::pfb_clock_sync_fff
  relative_rate_d
- gr::digital::pfb_clock_sync_fff
  relative_rate_i
- gr::digital::pfb_clock_sync_fff
  remove_item_tag
- gr::digital::pfb_clock_sync_fff
  remove_item_tag
- gr::digital::pfb_clock_sync_fff
  replace_buffer
- gr::digital::pfb_clock_sync_fff
  reset_perf_counters
- gr::digital::pfb_clock_sync_fff
  rpc_set
- gr::digital::pfb_clock_sync_fff
  sample_delay
- gr::digital::pfb_clock_sync_fff
  set_alignment
- gr::digital::pfb_clock_sync_fff
  set_alpha
- gr::digital::pfb_clock_sync_fff
  set_beta
- gr::digital::pfb_clock_sync_fff
  set_blkd_input_timer_value
- gr::digital::pfb_clock_sync_fff
  set_block_alias
- gr::digital::pfb_clock_sync_fff
  set_color
- gr::digital::pfb_clock_sync_fff
  set_damping_factor
- gr::digital::pfb_clock_sync_fff
  set_detail
- gr::digital::pfb_clock_sync_fff
  set_fixed_rate
- gr::digital::pfb_clock_sync_fff
  set_history
- gr::digital::pfb_clock_sync_fff
  set_input_signature
- gr::digital::pfb_clock_sync_fff
  set_inverse_relative_rate
- gr::digital::pfb_clock_sync_fff
  set_is_unaligned
- gr::digital::pfb_clock_sync_fff
  set_log_level
- gr::digital::pfb_clock_sync_fff
  set_loop_bandwidth
- gr::digital::pfb_clock_sync_fff
  set_max_noutput_items
- gr::digital::pfb_clock_sync_fff
  set_max_output_buffer
- gr::digital::pfb_clock_sync_fff
  set_max_output_buffer
- gr::digital::pfb_clock_sync_fff
  set_max_rate_deviation
- gr::digital::pfb_clock_sync_fff
  set_min_noutput_items
- gr::digital::pfb_clock_sync_fff
  set_min_output_buffer
- gr::digital::pfb_clock_sync_fff
  set_min_output_buffer
- gr::digital::pfb_clock_sync_fff
  set_msg_handler
- gr::digital::pfb_clock_sync_fff
  set_output_multiple
- gr::digital::pfb_clock_sync_fff
  set_output_signature
- gr::digital::pfb_clock_sync_fff
  set_processor_affinity
- gr::digital::pfb_clock_sync_fff
  set_relative_rate
- gr::digital::pfb_clock_sync_fff
  set_relative_rate
- gr::digital::pfb_clock_sync_fff
  set_tag_propagation_policy
- gr::digital::pfb_clock_sync_fff
  set_thread_priority
- gr::digital::pfb_clock_sync_fff
  set_unaligned
- gr::digital::pfb_clock_sync_fff
  setup_pc_rpc
- gr::digital::pfb_clock_sync_fff
  setup_rpc
- gr::digital::pfb_clock_sync_fff
  shared_from_base
- gr::digital::pfb_clock_sync_fff
  sptr
- gr::digital::pfb_clock_sync_fff
  start
- gr::digital::pfb_clock_sync_fff
  stop
- gr::digital::pfb_clock_sync_fff
  symbol_name
- gr::digital::pfb_clock_sync_fff
  symbolic_id
- gr::digital::pfb_clock_sync_fff
  system_handler
- gr::digital::pfb_clock_sync_fff
  tag_propagation_policy
- gr::digital::pfb_clock_sync_fff
  tag_propagation_policy_t
- gr::digital::pfb_clock_sync_fff
  taps
- gr::digital::pfb_clock_sync_fff
  taps_as_string
- gr::digital::pfb_clock_sync_fff
  thread_priority
- gr::digital::pfb_clock_sync_fff
  to_basic_block
- gr::digital::pfb_clock_sync_fff
  TPP_ALL_TO_ALL
- gr::digital::pfb_clock_sync_fff
  TPP_CUSTOM
- gr::digital::pfb_clock_sync_fff
  TPP_DONT
- gr::digital::pfb_clock_sync_fff
  TPP_ONE_TO_ONE
- gr::digital::pfb_clock_sync_fff
  unaligned
- gr::digital::pfb_clock_sync_fff
  unique_id
- gr::digital::pfb_clock_sync_fff
  unset_max_noutput_items
- gr::digital::pfb_clock_sync_fff
  unset_processor_affinity
- gr::digital::pfb_clock_sync_fff
  update_gains
- gr::digital::pfb_clock_sync_fff
  update_rate
- gr::digital::pfb_clock_sync_fff
  update_taps
- gr::digital::pfb_clock_sync_fff
  vcolor
- gr::digital::pfb_clock_sync_fff
  WHITE
- gr::digital::pfb_clock_sync_fff
  WORK_CALLED_PRODUCE
- gr::digital::pfb_clock_sync_fff
  WORK_DONE
- gr::digital::pfb_clock_sync_fff
  work_return_t
- gr::digital::pfb_clock_sync_fff
  ~basic_block
- gr::digital::pfb_clock_sync_fff
  ~block
- gr::digital::pfb_clock_sync_fff
  ~msg_accepter