Drone sound detection by correlation

Small size UAVs (Unmanned Aerial Vehicles) are more and more popular nowadays. These devices are used by many professions for taking picture or recording footages making their work significantly easier, such as recording footages on football matches, forecasting the weather or protecting a country's borders. Beyond these examples this technology can also be used for unethical purposes, the risk is increasing with the growing popularity. Numerous articles have data about spying, smuggling or taking compromising pictures about people. We must pay attention to safety preventions these days, thus we would like to introduce a solution for this.