dsplab package

Fields of application

• Development of software for digital signal processing.
• Development of the DSP routines that require a flexible configuration of different stages of calculations on the user level.
• Investigation of variety of methods solving the same DSP task.

Features and characteristics

• Some specific functions for analysis of signals.
• Synthesis of test signals with different kinds of modulation: amplitude, frequency and phase.
• Playing of signals (synthesized or archive) for the development of on-line procedures.
• Organization of calculations, workflows. User can define the plan of works and then set the worker for every work. The replacement of the worker does not destroy the workflow. Different types of nodes are supported: Work, Map (Loop), Select and Pack.
• Licence: LGPLv3
• Programming language: Python 3.

Installation

pip install dsplab

Example

File workers.py:

class Add:
    def __init__(self, value):
        self.value = value

    def __call__(self, x):
        return x + self.value

File main.py:

import json
from dsplab.flow.plan import get_plan_from_dict

with open('plan.json') as buf:
    conf = json.loads(buf.read())

p = get_plan_from_dict(conf)

x = 1
y = p([x, ])
print(y)

File plan.json:

{
    "nodes": [
        {
            "id": "a",
            "class": "WorkNode",
            "work": {
                "descr": "Increase input value",
                "worker": {
                    "class": "workers.Add",
                    "params": {"value": 1}
                }
            }
        }
    ],

    "inputs": ["a"],
    "outputs": ["a"]
}

Documentation

http://dsplab.readthedocs.io/en/latest/