Systems and methods for processing sensor data are provided. In some embodiments, systems and methods are provided for calibration of a continuous analyte sensor. In some embodiments, systems and methods are provided for classification of a level of noise on a sensor signal. In some embodiments, systems...http://www.google.com/patents/US20090192745?utm_source=gb-gplus-sharePatent US20090192745 - SYSTEMS AND METHODS FOR PROCESSING SENSOR DATA