Hi alistu,
Exactly, I need that the upper hard limiter and the lower hard limiter verify that an input signal power is in the interval [p1,p2], so the threshold of the first hard limiter is p1, and the threshold of the second is p2.
The objective is to have an output power only when the input signal is located in the concerned power interval. and, I want to obtain 0w and -100dbm in the other intervals.