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lesson19b_CostasLoop.grc
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lesson19b_CostasLoop.grc
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options:
parameters:
author: jason
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: ''
gen_cmake: 'On'
gen_linking: dynamic
generate_options: qt_gui
hier_block_src_path: '.:'
id: CostasLoop
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: prompt
sizing_mode: fixed
thread_safe_setters: ''
title: CostasLoop
window_size: ''
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 8]
rotation: 0
state: enabled
blocks:
- name: alpha
id: variable
parameters:
comment: 'Can''t change alpha in real time
for Consteallation Modulator'
value: '0.50'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [576, 292.0]
rotation: 0
state: enabled
- name: center_freq
id: variable
parameters:
comment: ''
value: 915e6
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [279, 13]
rotation: 0
state: enabled
- name: constellation
id: variable_constellation
parameters:
comment: ''
const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
dims: '1'
precision: '8'
rot_sym: '4'
soft_dec_lut: None
sym_map: '[0, 1, 3, 2]'
type: bpsk
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [576, 12.0]
rotation: 0
state: enabled
- name: costas_loop_bandwidth_in_cycles_per_sample
id: variable_qtgui_range
parameters:
comment: ''
gui_hint: 21,0
label: ''
min_len: '200'
orient: Qt.Horizontal
rangeType: float
start: '0.0001'
step: '0.0001'
stop: '0.2'
value: '.01'
widget: counter_slider
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1056, 1004.0]
rotation: 0
state: true
- name: nfilts
id: variable
parameters:
comment: ''
value: '32'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [48, 948.0]
rotation: 0
state: enabled
- name: offset
id: variable_qtgui_range
parameters:
comment: increased range with FLL
gui_hint: 6,0
label: ''
min_len: '200'
orient: Qt.Horizontal
rangeType: float
start: -500e3
step: '1'
stop: 500e3
value: '0'
widget: counter_slider
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [24, 628.0]
rotation: 0
state: enabled
- name: output_sps
id: variable
parameters:
comment: ''
value: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [256, 1220.0]
rotation: 0
state: true
- name: rcc_taps
id: variable_rrc_filter_taps
parameters:
alpha: alpha
comment: 'Gain: nfilts
Sample Rate: nfilts*samp_rate
Symbol Rate: samp_rate/sps
Excess BW: alpha
Num Taps: 11*sps*nfilts'
gain: nfilts
ntaps: 11*sps*nfilts
samp_rate: nfilts*samp_rate
sym_rate: samp_rate/sps
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [48, 1020.0]
rotation: 0
state: enabled
- name: rx_gain
id: variable_qtgui_range
parameters:
comment: ''
gui_hint: 4,0
label: ''
min_len: '200'
orient: Qt.Horizontal
rangeType: float
start: '0'
step: '1'
stop: '70'
value: '10'
widget: counter_slider
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [16, 300.0]
rotation: 0
state: enabled
- name: samp_rate
id: variable
parameters:
comment: ''
value: 1e6
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [184, 12]
rotation: 0
state: enabled
- name: sps
id: variable
parameters:
comment: ''
value: '16'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [385, 12]
rotation: 0
state: true
- name: tx_attenuation
id: variable_qtgui_range
parameters:
comment: ''
gui_hint: 3,0
label: ''
min_len: '200'
orient: Qt.Horizontal
rangeType: float
start: '0'
step: '1'
stop: '89'
value: '10'
widget: counter_slider
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [856, 36.0]
rotation: 0
state: enabled
- name: analog_agc_xx_1
id: analog_agc_xx
parameters:
affinity: ''
alias: ''
comment: ''
gain: '1.0'
max_gain: '65536'
maxoutbuf: '0'
minoutbuf: '0'
rate: 1e-4
reference: '1.0'
type: complex
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [536, 588.0]
rotation: 0
state: enabled
- name: analog_random_uniform_source_x_0_0
id: analog_random_uniform_source_x
parameters:
affinity: ''
alias: ''
comment: random 0s and 1s
maximum: constellation.arity()
maxoutbuf: '0'
minimum: '0'
minoutbuf: '0'
seed: '0'
type: byte
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [40, 196.0]
rotation: 0
state: enabled
- name: analog_random_uniform_source_x_0_0_0
id: analog_random_uniform_source_x
parameters:
affinity: ''
alias: ''
comment: 'bytes with random bits
(faster way to make random bytes)'
maximum: '256'
maxoutbuf: '0'
minimum: '0'
minoutbuf: '0'
seed: '0'
type: byte
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [304, 252.0]
rotation: 0
state: disabled
- name: analog_sig_source_x_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '1'
comment: ''
freq: offset
maxoutbuf: '0'
minoutbuf: '0'
offset: '0'
phase: '0'
samp_rate: samp_rate
type: complex
waveform: analog.GR_COS_WAVE
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [176, 620.0]
rotation: 0
state: enabled
- name: blocks_multiply_const_vxx_0
id: blocks_multiply_const_vxx
parameters:
affinity: ''
alias: ''
comment: 'Keep the signal from going
above +1 or below -1'
const: '0.4'
maxoutbuf: '0'
minoutbuf: '0'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [816, 220.0]
rotation: 0
state: true
- name: blocks_multiply_xx_0
id: blocks_multiply_xx
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
num_inputs: '2'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [400, 560.0]
rotation: 0
state: enabled
- name: blocks_skiphead_0
id: blocks_skiphead
parameters:
affinity: ''
alias: ''
comment: 'skip one second of samples
to allow FLL to sync'
maxoutbuf: '0'
minoutbuf: '0'
num_items: int(samp_rate)
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [616, 900.0]
rotation: 180
state: enabled
- name: blocks_unpacked_to_packed_xx_0_0
id: blocks_unpacked_to_packed_xx
parameters:
affinity: ''
alias: ''
bits_per_chunk: constellation.bits_per_symbol()
comment: ''
endianness: gr.GR_MSB_FIRST
maxoutbuf: '0'
minoutbuf: '0'
num_ports: '1'
type: byte
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [310, 174]
rotation: 0
state: enabled
- name: blocks_vector_source_x_0_0
id: blocks_vector_source_x
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
repeat: 'True'
tags: '[]'
type: byte
vector: '[0,1,0,1,0,0,0,1,1,0,0,0,1,1,1,1]'
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [48, 116.0]
rotation: 0
state: disabled
- name: digital_constellation_modulator_0
id: digital_constellation_modulator
parameters:
affinity: ''
alias: ''
comment: 'Unpack bytes into chunks of bits,
look up constellation symbol,
and apply RRC filter'
constellation: constellation
differential: 'False'
excess_bw: alpha
log: 'False'
maxoutbuf: '0'
minoutbuf: '0'
samples_per_symbol: sps
verbose: 'False'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [576, 156.0]
rotation: 0
state: enabled
- name: digital_costas_loop_cc_0
id: digital_costas_loop_cc
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
order: constellation.arity()
use_snr: 'False'
w: 2*math.pi*costas_loop_bandwidth_in_cycles_per_sample
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1032, 832.0]
rotation: 0
state: enabled
- name: digital_fll_band_edge_cc_0
id: digital_fll_band_edge_cc
parameters:
affinity: ''
alias: ''
comment: 'Samples Per Symbol: sps
Filter Rolloff Factor: alpha
Prototype Filter Size: sps*2+1
Loop Bandwidth: 2*math.pi/sps/100'
filter_size: sps*2+1
maxoutbuf: '0'
minoutbuf: '0'
rolloff: alpha
samps_per_sym: sps
type: cc
w: 2*math.pi/sps/100
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [600, 704.0]
rotation: 0
state: true
- name: digital_symbol_sync_xx_0
id: digital_symbol_sync_xx
parameters:
affinity: ''
alias: ''
comment: "Filterbank Arms: nfilts\nPFB MF Taps: rcc_taps\nChanged Maximum Deviation\
\ to 0.1 because \nthe clocks aren't more off than 0.1 samples per symbol"
constellation: digital.constellation_bpsk().base()
damping: '1.0'
loop_bw: '0.045'
max_dev: '0.1'
maxoutbuf: '0'
minoutbuf: '0'
nfilters: nfilts
osps: output_sps
pfb_mf_taps: rcc_taps
resamp_type: digital.IR_PFB_MF
sps: sps
ted_gain: '1.0'
ted_type: digital.TED_SIGNAL_TIMES_SLOPE_ML
type: cc
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [264, 964.0]
rotation: 0
state: enabled
- name: iio_pluto_sink_0_0
id: iio_pluto_sink
parameters:
affinity: ''
alias: ''
attenuation1: tx_attenuation
auto_filter: 'True'
bandwidth: int(samp_rate)
buffer_size: '32768'
comment: ''
cyclic: 'False'
filter: ''
frequency: int(center_freq)
samplerate: int(samp_rate)
uri: 192.168.2.1
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1032, 4.0]
rotation: 0
state: enabled
- name: import_0
id: import
parameters:
alias: ''
comment: ''
imports: import math
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [243, 82]
rotation: 0
state: enabled
- name: qtgui_const_sink_x_0
id: qtgui_const_sink_x
parameters:
affinity: ''
alias: ''
alpha1: '1.0'
alpha10: '1.0'
alpha2: '1.0'
alpha3: '1.0'
alpha4: '1.0'
alpha5: '1.0'
alpha6: '1.0'
alpha7: '1.0'
alpha8: '1.0'
alpha9: '1.0'
autoscale: 'False'
axislabels: 'True'
color1: '"blue"'
color10: '"red"'
color2: '"red"'
color3: '"red"'
color4: '"red"'
color5: '"red"'
color6: '"red"'
color7: '"red"'
color8: '"red"'
color9: '"red"'
comment: makes most sense if "Output Samples/Symbol" is 1
grid: 'False'
gui_hint: 13,0
label1: Symbol Sync
label10: ''
label2: ''
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
marker1: '0'
marker10: '0'
marker2: '0'
marker3: '0'
marker4: '0'
marker5: '0'
marker6: '0'
marker7: '0'
marker8: '0'
marker9: '0'
name: '""'
nconnections: '1'
size: '1024'
style1: '0'
style10: '0'
style2: '0'
style3: '0'
style4: '0'
style5: '0'
style6: '0'
style7: '0'
style8: '0'
style9: '0'
tr_chan: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
type: complex
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
xmax: '2'
xmin: '-2'
ymax: '2'
ymin: '-2'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [824, 1156.0]
rotation: 0
state: enabled
- name: qtgui_const_sink_x_0_0
id: qtgui_const_sink_x
parameters:
affinity: ''
alias: ''
alpha1: '1.0'
alpha10: '1.0'
alpha2: '1.0'
alpha3: '1.0'
alpha4: '1.0'
alpha5: '1.0'
alpha6: '1.0'
alpha7: '1.0'
alpha8: '1.0'
alpha9: '1.0'
autoscale: 'False'
axislabels: 'True'
color1: '"blue"'
color10: '"red"'
color2: '"red"'
color3: '"red"'
color4: '"red"'
color5: '"red"'
color6: '"red"'
color7: '"red"'
color8: '"red"'
color9: '"red"'
comment: makes most sense if "Output Samples/Symbol" is 1
grid: 'False'
gui_hint: 17,0
label1: after Symbol Sync
label10: ''
label2: after Costas
label3: ''
label4: ''
label5: ''
label6: ''
label7: ''
label8: ''
label9: ''
legend: 'True'
marker1: '0'
marker10: '0'
marker2: '0'
marker3: '0'
marker4: '0'
marker5: '0'
marker6: '0'
marker7: '0'
marker8: '0'
marker9: '0'
name: '""'
nconnections: '2'
size: '1024'
style1: '0'
style10: '0'
style2: '0'
style3: '0'
style4: '0'
style5: '0'
style6: '0'
style7: '0'
style8: '0'
style9: '0'
tr_chan: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
type: complex
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
xmax: '2'
xmin: '-2'
ymax: '2'
ymin: '-2'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1328, 956.0]
rotation: 0
state: enabled
- name: qtgui_eye_sink_x_0
id: qtgui_eye_sink_x
parameters:
affinity: ''
alias: ''
alpha1: '1.0'
alpha10: '1.0'
alpha2: '1.0'
alpha3: '1.0'
alpha4: '1.0'
alpha5: '1.0'
alpha6: '1.0'
alpha7: '1.0'
alpha8: '1.0'
alpha9: '1.0'
autoscale: 'False'
axislabels: 'True'
color1: blue
color10: blue
color2: blue
color3: blue
color4: blue
color5: blue
color6: blue
color7: blue
color8: blue
color9: blue
comment: changed labels
ctrlpanel: 'False'
entags: 'True'
grid: 'False'
gui_hint: 10,0
label1: Eye Diagram for Receive AGC and FLL Re
label10: Signal 10
label2: Eye Diagram for Receive AGC and FLL Im
label3: Signal 3
label4: Signal 4
label5: Signal 5
label6: Signal 6
label7: Signal 7
label8: Signal 8
label9: Signal 9
legend: 'True'
marker1: '0'
marker10: '-1'
marker2: '0'
marker3: '-1'
marker4: '-1'
marker5: '-1'
marker6: '-1'
marker7: '-1'
marker8: '-1'
marker9: '-1'
name: '""'
nconnections: '1'
samp_per_symbol: sps
size: '1024'
srate: samp_rate
style1: '1'
style10: '1'
style2: '1'
style3: '1'
style4: '1'
style5: '1'
style6: '1'
style7: '1'
style8: '1'
style9: '1'
tr_chan: '0'
tr_delay: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
type: complex
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
ylabel: Amplitude
ymax: '2'
ymin: '-2'
yunit: '""'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1096, 644.0]
rotation: 0
state: enabled
- name: qtgui_eye_sink_x_0_0
id: qtgui_eye_sink_x
parameters:
affinity: ''
alias: ''
alpha1: '1.0'
alpha10: '1.0'
alpha2: '1.0'
alpha3: '1.0'
alpha4: '1.0'
alpha5: '1.0'
alpha6: '1.0'
alpha7: '1.0'
alpha8: '1.0'
alpha9: '1.0'
autoscale: 'False'
axislabels: 'True'
color1: blue
color10: blue
color2: blue
color3: blue
color4: blue
color5: blue
color6: blue
color7: blue
color8: blue
color9: blue
comment: ''
ctrlpanel: 'False'
entags: 'True'
grid: 'False'
gui_hint: 12,0
label1: Eye Diagram for Receive Symbol Sync Re
label10: Signal 10
label2: Eye Diagram for Receive Symbol Sync Im
label3: Signal 3
label4: Signal 4
label5: Signal 5
label6: Signal 6
label7: Signal 7
label8: Signal 8
label9: Signal 9
legend: 'True'
marker1: '0'
marker10: '-1'
marker2: '0'
marker3: '-1'
marker4: '-1'
marker5: '-1'
marker6: '-1'
marker7: '-1'
marker8: '-1'
marker9: '-1'
name: '""'
nconnections: '1'
samp_per_symbol: sps
size: '1024'
srate: samp_rate/sps*output_sps
style1: '1'
style10: '1'
style2: '1'
style3: '1'
style4: '1'
style5: '1'
style6: '1'
style7: '1'
style8: '1'
style9: '1'
tr_chan: '0'
tr_delay: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
type: complex
update_time: '0.10'
width1: '1'
width10: '1'
width2: '1'
width3: '1'
width4: '1'
width5: '1'
width6: '1'
width7: '1'
width8: '1'
width9: '1'
ylabel: Amplitude
ymax: '2'
ymin: '-2'
yunit: '""'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [824, 1036.0]
rotation: 0
state: enabled
- name: qtgui_eye_sink_x_0_0_0
id: qtgui_eye_sink_x
parameters:
affinity: ''
alias: ''
alpha1: '1.0'
alpha10: '1.0'
alpha2: '1.0'
alpha3: '1.0'
alpha4: '1.0'
alpha5: '1.0'
alpha6: '1.0'
alpha7: '1.0'
alpha8: '1.0'
alpha9: '1.0'
autoscale: 'False'
axislabels: 'True'
color1: blue
color10: blue
color2: blue
color3: blue
color4: blue
color5: blue
color6: blue
color7: blue
color8: blue
color9: blue
comment: ''
ctrlpanel: 'False'
entags: 'True'
grid: 'False'
gui_hint: 16,0
label1: Eye Diagram after Costas Re
label10: Signal 10
label2: Eye Diagram after Costas Im
label3: Signal 3
label4: Signal 4
label5: Signal 5
label6: Signal 6
label7: Signal 7
label8: Signal 8
label9: Signal 9
legend: 'True'
marker1: '0'
marker10: '-1'
marker2: '0'
marker3: '-1'
marker4: '-1'
marker5: '-1'
marker6: '-1'
marker7: '-1'
marker8: '-1'
marker9: '-1'
name: '""'
nconnections: '1'
samp_per_symbol: sps
size: '1024'
srate: samp_rate/sps*output_sps
style1: '1'
style10: '1'
style2: '1'
style3: '1'
style4: '1'
style5: '1'
style6: '1'
style7: '1'
style8: '1'
style9: '1'
tr_chan: '0'
tr_delay: '0'
tr_level: '0.0'
tr_mode: qtgui.TRIG_MODE_FREE
tr_slope: qtgui.TRIG_SLOPE_POS
tr_tag: '""'
type: complex
update_time: '0.10'
width1: '1'