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  • AVR DDS signal generator V1.0
    Sometimes we need simple signal generator with various waveform and frequencies. You can by a professional with variable gain and many additional functions. But you might want to build one. This small project is dedicated for building simple AVR controlled DDS signal generator.
    Sometimes when tuning various electronic hardware we need simple signal generator with various waveform and frequency. One of the options is to by a professional with variable gain professional coating and many additional functions. But if you are an amateur you might want to build one. This small project is dedicated for building one of [...]
    avr-controlled-signal-generator
    in Public bookmarks with atmega avr c dds form generator in signal wave
  • How to measure signal period using microcontrollers
    This article describes an idea how to measure signal period, frequency and phase shift using microcontroller.
    Measuring signal period is common problem in embedded systems. This can be measuring time between two events or measuring signal frequency f=1/T and so on.Measuring of time interval or period is based on comparing of event time t with discrete time usually produced by timer. This usually is done by filling the event time t [...]
    embedded-general
    in Public bookmarks with basics frequency measuring meter period phase shift signal
  • Signal sampling mechanism
    Interesting reading how signal sampling and correct restoring works on time and frequency domains.
    Sampling is a process when continuous time signal is represented by series of discrete samples while reconstruction is reverse process when these samples re recreating adequate continuous time signal. Bellow the overall process is illustrated.Sampling is a process when continuous time signal is recorded every T seconds by multiplying by an impulse train.If signal is [...]
    dsp-lessons
    in Public bookmarks with alias avoid restoring sampling signal sinc spectra with


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