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DigitalTract

Welcome to the DigitalTract wiki!

DigitalTract - SDR receiver management program and implementation of DSP function. Main project in 2017-2019.

Features:

• full control of the SDR receiver based on Realtek and RafaelMicro chips:
  • gain control;
  • ADC sampling frequency;
  • frequency of the local oscillator;
  • operating mode ADC;
  • receiving digital signal from SDR;
• DSP:
  • bandpass filtration (FIR filter);
  • FFT calculation (size 1024);
  • shift signal's frequency;
  • decimation;
  • demodulation (AM, USB, LSB, FM);
• recording signal at various stages of digital processing in wav files;
• displaying spectrum of signal on spectrogram and sonogram;
• output of low-frequency demodulated signal via computer sound card;
• suppression of imbalance of quadrature components;

Screenshots

Appearance of main window:

Appearance of configure window: