Signal Processing Blocks


Detailed Description

These are the signal processing blocks, blah, blah blah...


Modules

 Signal Sources
 Signal Sinks
 Filters
 Type Conversions

Classes

class  gr_add_cc
 output = sum (input_0, input_1, ...)

Add across all input streams. More...

class  gr_add_const_cc
 output = input + constant More...
class  gr_add_const_ff
 output = input + constant More...
class  gr_add_const_ii
 output = input + constant More...
class  gr_add_const_sf
 output = input + constant More...
class  gr_add_const_ss
 output = input + constant More...
class  gr_add_ff
 output = sum (input_0, input_1, ...)

Add across all input streams. More...

class  gr_add_ii
 output = sum (input_0, input_1, ...)

Add across all input streams. More...

class  gr_add_ss
 output = sum (input_0, input_1, ...)

Add across all input streams. More...

class  gr_align_on_samplenumbers_ss
 align several complex short (interleaved short) input channels with corresponding unsigned 32 bit sample_counters (provided as interleaved 16 bit values) More...
class  gr_bytes_to_syms
 Convert stream of bytes to stream of +/- 1 symbols

input: stream of bytes; output: stream of float. More...

class  gr_chunks_to_symbols_bc
 Map a stream of symbol indexes (unpacked bytes) to stream of complex constellation points.

input: stream of bytes; output: stream of complex. More...

class  gr_chunks_to_symbols_bf
 Map a stream of symbol indexes (unpacked bytes) to stream of real constellation points.

input: stream of bytes; output: stream of float. More...

class  gr_clock_recovery_mm_cc
 Mueller and Müller (M&M) based clock recovery block with complex input, complex output.

This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer. More...

class  gr_clock_recovery_mm_ff
 Mueller and Müller (M&M) based clock recovery block with float input, float output.

This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer. More...

class  gr_conjugate_cc
 output = complex conjugate of input More...
class  gr_deinterleave
 deinterleave a single input into N outputs More...
class  gr_divide_cc
 output = input_0 / input_1 / input_x ...)

Divide across all input streams. More...

class  gr_divide_ff
 output = input_0 / input_1 / input_x ...)

Divide across all input streams. More...

class  gr_divide_ii
 output = input_0 / input_1 / input_x ...)

Divide across all input streams. More...

class  gr_divide_ss
 output = input_0 / input_1 / input_x ...)

Divide across all input streams. More...

class  gr_fake_channel_encoder_pp
 pad packet with alternating 1,0 pattern.

input: stream of byte vectors; output: stream of byte vectors More...

class  gr_fake_channel_decoder_pp
 remove fake padding from packet

input: stream of byte vectors; output: stream of byte vectors More...

class  gr_fft_vcc
 Compute forward or reverse FFT. complex vector in / complex vector out. More...
class  gr_fft_vfc
 Compute forward FFT. float vector in / complex vector out. More...
class  gr_frequency_modulator_fc
 Frequency modulator block

float input; complex baseband output. More...

class  gr_head
 copies the first N items to the output then signals done

Useful for building test cases More...

class  gr_interleave
 interleave N inputs to a single output More...
class  gr_keep_one_in_n
 decimate a stream, keeping one item out of every n. More...
class  gr_kludge_copy
 output[i] = input[i]

This is a short term kludge to work around a problem with the hierarchical block impl. More...

class  gr_lms_dfe_cc
 Least-Mean-Square Decision Feedback Equalizer (complex in/out). More...
class  gr_lms_dfe_ff
 Least-Mean-Square Decision Feedback Equalizer (float in/out). More...
class  gr_multiply_cc
 output = prod (input_0, input_1, ...)

Multiply across all input streams. More...

class  gr_multiply_const_cc
 output = input * constant More...
class  gr_multiply_const_ff
 output = input * constant More...
class  gr_multiply_const_ii
 output = input * constant More...
class  gr_multiply_const_ss
 output = input * constant More...
class  gr_multiply_ff
 output = prod (input_0, input_1, ...)

Multiply across all input streams. More...

class  gr_multiply_ii
 output = prod (input_0, input_1, ...)

Multiply across all input streams. More...

class  gr_multiply_ss
 output = prod (input_0, input_1, ...)

Multiply across all input streams. More...

class  gr_mute_cc
 output = input or zero if muted. More...
class  gr_mute_ff
 output = input or zero if muted. More...
class  gr_mute_ii
 output = input or zero if muted. More...
class  gr_mute_ss
 output = input or zero if muted. More...
class  gr_nlog10_ff
 output = n*log10(input) + k More...
class  gr_nop
 Does nothing. Used for testing only. More...
class  gr_pa_2x2_phase_combiner
 pa_2x2 phase combiner

Anntenas are arranged like this: More...

class  gr_packed_to_unpacked_bb
 Convert a stream of packed bytes to stream of unpacked bytes.

input: stream of bytes; output: stream of bytes. More...

class  gr_phase_modulator_fc
 Phase modulator block

output=complex(cos(in*sensitivity),sin(in*sensitivity)). More...

class  gr_pll_carriertracking_cc
 Implements a PLL which locks to the input frequency and outputs the input signal mixed with that carrier.

input: stream of complex; output: stream of complex. More...

class  gr_pll_freqdet_cf
 Implements a PLL which locks to the input frequency and outputs an estimate of that frequency. Useful for FM Demod.

input: stream of complex; output: stream of floats. More...

class  gr_pll_refout_cc
 Implements a PLL which locks to the input frequency and outputs a carrier

input: stream of complex; output: stream of complex. More...

class  gr_quadrature_demod_cf
 quadrature demodulator: complex in, float out

This can be used to demod FM, FSK, GMSK, etc. The input is complex baseband. More...

class  gr_simple_correlator
 inverse of gr_simple_framer (more or less) More...
class  gr_simple_framer
 add sync field, seq number and command field to payload More...
class  gr_skiphead
 skips the first N items, from then on copies items to the output

Useful for building test cases and sources which have metadata or junk at the start More...

class  gr_stream_to_streams
 convert a stream of items into a N streams of items

Converts a stream of N items into N streams of 1 item. Repeat ad infinitum. More...

class  gr_stream_to_vector
 convert a stream of items into a stream of blocks containing nitems_per_block More...
class  gr_streams_to_stream
 Convert N streams of 1 item into a 1 stream of N items

Convert N streams of 1 item into 1 stream of N items. Repeat ad infinitum. More...

class  gr_streams_to_vector
 convert N streams of items to 1 stream of vector length N More...
class  gr_sub_cc
 output = input_0 - input_1 - ...)

Subtract across all input streams. More...

class  gr_sub_ff
 output = input_0 - input_1 - ...)

Subtract across all input streams. More...

class  gr_sub_ii
 output = input_0 - input_1 - ...)

Subtract across all input streams. More...

class  gr_sub_ss
 output = input_0 - input_1 - ...)

Subtract across all input streams. More...

class  gr_sync_block
 synchronous 1:1 input to output with history

Override work to provide the signal processing implementation. More...

class  gr_sync_decimator
 synchronous N:1 input to output with history

Override work to provide the signal processing implementation. More...

class  gr_sync_interpolator
 synchronous 1:N input to output with history

Override work to provide the signal processing implementation. More...

class  gr_threshold_ff
class  gr_throttle
 throttle flow of samples such that the average rate does not exceed samples_per_sec.

input: one stream of itemsize; output: one stream of itemsize More...

class  gr_unpacked_to_packed_bb
 Convert a stream of unpacked bytes into a stream of packed bytes.

input: stream of bytes; output: stream of bytes. More...

class  gr_vco_f
 VCO - Voltage controlled oscillator

input: float stream of control voltages; output: float oscillator output. More...

class  gr_vector_to_stream
 convert a stream of blocks of nitems_per_block items into a stream of items More...
class  gr_vector_to_streams
 Convert 1 stream of vectors of length N to N streams of items. More...
class  gr_block
 The abstract base class for all signal processing blocks.

Blocks have a set of input streams and output streams. The input_signature and output_signature define the number of input streams and output streams respectively, and the type of the data items in each stream. More...


Generated on Mon Sep 18 14:57:47 2006 for GNU Radio 2.x by  doxygen 1.4.7