gr::analog::frequency_modulator_fc
gr::sync_block
gnuradio/analog/frequency_modulator_fc.h
std::shared_ptr< frequency_modulator_fc > std::shared_ptr<frequency_modulator_fc> gr::analog::frequency_modulator_fc::sptr sptr gr::analog::frequency_modulator_fc::sptr
sptr static sptr gr::analog::frequency_modulator_fc::make (float sensitivity) make gr::analog::frequency_modulator_fc::make float sensitivity

Build a frequency modulator block.

sensitivity

radians/sample = amplitude * sensitivity

void virtual void gr::analog::frequency_modulator_fc::set_sensitivity (float sens)=0 set_sensitivity gr::analog::frequency_modulator_fc::set_sensitivity float sens
float virtual float gr::analog::frequency_modulator_fc::sensitivity () const =0 sensitivity gr::analog::frequency_modulator_fc::sensitivity

Frequency modulator block.

float input; complex baseband output

Takes a real, baseband signal (x_m[n]) and output a frequency modulated signal (y[n]) according to:

\[ y[n] = exp (j 2 \pi \frac{f_{\Delta}}{f_s} \sum{x[n]}) \]

Where x[n] is the input sample at time n and $ f_{\Delta} $ is the frequency deviation. Common values for $ f_{\Delta} $ are 5 kHz for narrowband FM channels such as for voice systems and 75 KHz for wideband FM, like audio broadcast FM stations.

In this block, the input argument is `sensitivity`, not the frequency deviation. The sensitivity specifies how much the phase changes based on the new input sample. Given a maximum deviation, $ f_{\Delta} $, and sample rate $f_s$, the sensitivity is defined as:

\[ k = 2 \pi \frac{f_{\Delta}}{f_s} \]

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