This is a crossover system that was recommended by Mark Jurik. The system consists of Jurik Moving Average (JMA) and Double Weighted Moving Average (DWMA). In case of Jurik Moving Average I use the best original JMA' clone on TradingView https://www.tradingview.com/script/714vYiDe-Jurik-Moving-Average/ that has the almost identical behaviour as the original one.
As Mr. Jurik noticed: "JMA is ideal for the fast moving average line because it is quick to respond to reversals, is smooth and can be set to have no overshoot. DWMA (double weighted moving average) is ideal for the slower line as is tends to delay reversing direction until JMA crosses it."