Normalized RSI tends to be "nervous" (the direction of the RSI itself, and of the normalized RSI as a result is changing sometimes erratically).
This version is adding JMA smoothing to it in order to make that volatility lesser and to attempt to make the slope of the RSI more usable without adding significant lag.
PS: if the normalization period is set to <=1, then no normalization of the RSI is performed, and in that case you shall have a "simple" RSI.
Normalized RSI tries to fix the "RSI problem": the longer the calculating period, the flatter the RSI becomes.Price Zone Oscillator - Floating Levels
Compared to the Price Zone Oscillator indicator, this version is using floating levels to find out the significant levels.