# Path: thrifty/gold.py
# def gold(bits, idx):
#     """Generate the idx-th Gold code of length 2^bits - 1.
# 
#     Parameters
#     ----------
#     bits : int
#         Length of LFSR. The length of the gold code will be
#         :math:`2^{\\mathtt{bits}} - 1`.
#     idx : int
#         Index of the code to generate within the set of gold codes, where
#         :math:`0 \\le \\mathtt{idx} < 2^{\\mathtt{bits}} + 1`.
#     """
#     bits = int(bits)
#     if bits not in TAPS:
#         raise ValueError('Preferred pairs for %d bits unknown.' % bits)
#     seed = np.ones(bits, dtype=bool)
# 
#     seq1 = lfsr(TAPS[bits][0], seed)
#     seq2 = lfsr(TAPS[bits][1], seed)
# 
#     if idx == 0:
#         return seq1
#     elif idx == 1:
#         return seq2
#     else:
#         return np.logical_xor(seq1, np.roll(seq2, -idx + 2))
# 
# Path: thrifty/settings.py
# DEFINITIONS = {
#     'sample_rate': Definition(
#         ['--sample-rate', '-s'],
#         setting_parsers.metric_float,
#         '2.4M',
#         "Sample rate (sps)"
#     ),
# 
#     'chip_rate': Definition(
#         ['--chip-rate', '-p'],
#         setting_parsers.metric_float,
#         '0.999707M',
#         "Rate at which the code is being transmitted (bps)"
#     ),
# 
#     'tuner_freq': Definition(
#         ['--freq', '-f'],
#         setting_parsers.metric_float,
#         '433.83M',
#         "Tuner center frequency (Hz)"
#     ),
# 
#     'tuner_gain': Definition(
#         ['--gain', '-g'],
#         float,
#         '0',
#         "Tuner gain (dB)"
#     ),
# 
#     'capture_skip': Definition(
#         ['--skip', '-k'],
#         int,
#         '1',
#         "Number of blocks to skip before starting capturing from the SDR"
#     ),
# 
#     'block_size': Definition(
#         ['--block-size', '-b'],
#         int,
#         '16384',
#         "Length of fixed-sized blocks, which should be a power of two "
#         "(samples)"
#     ),
# 
#     'block_history': Definition(
#         ['--history', '-y'],
#         int,
#         '4920',
#         "The number of samples at the end of a block that should be repeated "
#         "at the start of the next block (samples)"
#     ),
# 
#     'carrier_window': Definition(
#         ['--carrier-window', '-w'],
#         setting_parsers.freq_range,
#         '0--1',
#         "Range of frequencies or frequency bins to look for carrier"
#     ),
# 
#     'carrier_threshold': Definition(
#         ['--carrier-threshold', '-t'],
#         setting_parsers.threshold,
#         '15*snr',
#         "Threshold formula for carrier detector"
#     ),
# 
#     'corr_threshold': Definition(
#         ['--corr-threshold', '-u'],
#         setting_parsers.threshold,
#         '15*snr',
#         "Threshold formula for correlation peak detector"
#     ),
# 
#     'template': Definition(
#         ['--template', '-z'],
#         str,
#         'template.npy',
#         "Load template from a Numpy .npy file"
#     ),
# 
#     'rxid': Definition(
#         ['--rxid', '-r'],
#         int,
#         -1,
#         "Unique identifier of this receiver"
#     ),
# }
# DEFAULT_CONFIG_PATH = 'detector.cfg'
# CONFIG_COMMENT_CHAR = '#'
# CONFIG_DELIMITER = ':'
# CONFIG_DEST = 'config'
# class Error(Exception):
# class ConfigSyntaxError(Error):
# class SettingKeyError(Error):
# class Namespace(dict):
#     def __init__(self, line_no, msg):
#     def __str__(self):
#     def __init__(self, msg):
#     def __str__(self):
#     def __init__(self, dict_):
# def add_argparse_arguments(parser, keys, definitions=None):
# def load(args=None, config_file=None, definitions=None):
# def load_args(parser, keys, argv=None, definitions=None):
# def parse_kvconfig(config_file):


import argparse
import numpy as np
from thrifty import gold
from thrifty import settings
"""
Generate Gold code template by sampling the ideal code signal.

Gold codes is the only type of code that is currently supported. An integer
sampler is used. No filter (e.g. antialiasing filter) is applied.
"""

from __future__ import division
from __future__ import print_function





def generate(bit_length, code_index, sps):
    """Generate a Gold code template.

    Parameters
    ----------
    bit_length : int
        Gold code register length.
    code_index : int
        Index of code within the set of Gold codes of equal length.
    sps : float
        Samples per code symbol (bit).

    Returns
    -------
    template : nparray
    """

# Path: thrifty/gold.py
# def gold(bits, idx):
#     """Generate the idx-th Gold code of length 2^bits - 1.
# 
#     Parameters
#     ----------
#     bits : int
#         Length of LFSR. The length of the gold code will be
#         :math:`2^{\\mathtt{bits}} - 1`.
#     idx : int
#         Index of the code to generate within the set of gold codes, where
#         :math:`0 \\le \\mathtt{idx} < 2^{\\mathtt{bits}} + 1`.
#     """
#     bits = int(bits)
#     if bits not in TAPS:
#         raise ValueError('Preferred pairs for %d bits unknown.' % bits)
#     seed = np.ones(bits, dtype=bool)
# 
#     seq1 = lfsr(TAPS[bits][0], seed)
#     seq2 = lfsr(TAPS[bits][1], seed)
# 
#     if idx == 0:
#         return seq1
#     elif idx == 1:
#         return seq2
#     else:
#         return np.logical_xor(seq1, np.roll(seq2, -idx + 2))
# 
# Path: thrifty/settings.py
# DEFINITIONS = {
#     'sample_rate': Definition(
#         ['--sample-rate', '-s'],
#         setting_parsers.metric_float,
#         '2.4M',
#         "Sample rate (sps)"
#     ),
# 
#     'chip_rate': Definition(
#         ['--chip-rate', '-p'],
#         setting_parsers.metric_float,
#         '0.999707M',
#         "Rate at which the code is being transmitted (bps)"
#     ),
# 
#     'tuner_freq': Definition(
#         ['--freq', '-f'],
#         setting_parsers.metric_float,
#         '433.83M',
#         "Tuner center frequency (Hz)"
#     ),
# 
#     'tuner_gain': Definition(
#         ['--gain', '-g'],
#         float,
#         '0',
#         "Tuner gain (dB)"
#     ),
# 
#     'capture_skip': Definition(
#         ['--skip', '-k'],
#         int,
#         '1',
#         "Number of blocks to skip before starting capturing from the SDR"
#     ),
# 
#     'block_size': Definition(
#         ['--block-size', '-b'],
#         int,
#         '16384',
#         "Length of fixed-sized blocks, which should be a power of two "
#         "(samples)"
#     ),
# 
#     'block_history': Definition(
#         ['--history', '-y'],
#         int,
#         '4920',
#         "The number of samples at the end of a block that should be repeated "
#         "at the start of the next block (samples)"
#     ),
# 
#     'carrier_window': Definition(
#         ['--carrier-window', '-w'],
#         setting_parsers.freq_range,
#         '0--1',
#         "Range of frequencies or frequency bins to look for carrier"
#     ),
# 
#     'carrier_threshold': Definition(
#         ['--carrier-threshold', '-t'],
#         setting_parsers.threshold,
#         '15*snr',
#         "Threshold formula for carrier detector"
#     ),
# 
#     'corr_threshold': Definition(
#         ['--corr-threshold', '-u'],
#         setting_parsers.threshold,
#         '15*snr',
#         "Threshold formula for correlation peak detector"
#     ),
# 
#     'template': Definition(
#         ['--template', '-z'],
#         str,
#         'template.npy',
#         "Load template from a Numpy .npy file"
#     ),
# 
#     'rxid': Definition(
#         ['--rxid', '-r'],
#         int,
#         -1,
#         "Unique identifier of this receiver"
#     ),
# }
# DEFAULT_CONFIG_PATH = 'detector.cfg'
# CONFIG_COMMENT_CHAR = '#'
# CONFIG_DELIMITER = ':'
# CONFIG_DEST = 'config'
# class Error(Exception):
# class ConfigSyntaxError(Error):
# class SettingKeyError(Error):
# class Namespace(dict):
#     def __init__(self, line_no, msg):
#     def __str__(self):
#     def __init__(self, msg):
#     def __str__(self):
#     def __init__(self, dict_):
# def add_argparse_arguments(parser, keys, definitions=None):
# def load(args=None, config_file=None, definitions=None):
# def load_args(parser, keys, argv=None, definitions=None):
# def parse_kvconfig(config_file):


# Path: thrifty/template_generate.py
import argparse
import numpy as np
from thrifty import gold
from thrifty import settings

"""
Generate Gold code template by sampling the ideal code signal.

Gold codes is the only type of code that is currently supported. An integer
sampler is used. No filter (e.g. antialiasing filter) is applied.
"""

from __future__ import division
from __future__ import print_function





def generate(bit_length, code_index, sps):
    """Generate a Gold code template.

    Parameters
    ----------
    bit_length : int
        Gold code register length.
    code_index : int
        Index of code within the set of Gold codes of equal length.
    sps : float
        Samples per code symbol (bit).

    Returns
    -------
    template : nparray
    """

    code = gold.gold(bit_length, code_index)