Howtosignalprocessing
- How do you calculate the phase difference between two digital signals of the same frequency?
- How do you compare the phases of two signals?
- What is SDR in signal processing?
How do you calculate the phase difference between two digital signals of the same frequency?
The simplest technique in your case is to simply calculate the correlation r of de-meaned signals, then get the phase difference as ϕ=arccos(r/π) if the signals are harmonic, i.e. single frequency sine waves. Another way of doing this is with cross-correlation function.
How do you compare the phases of two signals?
An oscilloscope's timing markers (Figure 1 ) offer the simplest technique to measure the phase between two signals. The time difference between two corresponding points on the signals represents the phase in units of time. Multiplying the ratio of this value to the period of the signals calculates the phase in degrees.
What is SDR in signal processing?
A software-defined radio (SDR) system is a radio communication system which uses software for the modulation and demodulation of radio signals. An SDR performs significant amounts of signal processing in a general purpose computer, or a reconfigurable piece of digital electronics.
