Comparison of the period detection algorithms based on Pi of the Sky data.

At the beginning of my presentation I will tell some words about the period detection algorithms which are used by us to the variability analysis of the observed stars. I compare all used algorithms and I will tell which algorithm gives us the best period detection quality. I will also tell how we calculate the period detection error. I will give some examples of this calculation. At the end of my presentation I will show how removing bad measurements from the analysed light curve affect to accuracy of the period detection.