Step 1: Understanding Wireless Communication Ranges Wireless communication is characterized by different ranges based on signal strength and usability:
Step 2: Analyzing the Correct Option
- Option (A) Transmission Range (Correct): This defines the region where communication can occur successfully in both directions.
- Option (B) Detection Range: Incorrect, as detection does not guarantee proper decoding.
- Option (C) Interference Range: Incorrect, as signals in this range cause interference rather than proper communication.
- Option (D) Propagation Range: Incorrect, as this refers to the total distance a signal can travel.
A closed-loop system has the characteristic equation given by: $ s^3 + k s^2 + (k+2) s + 3 = 0 $.
For the system to be stable, the value of $ k $ is:
A digital filter with impulse response $ h[n] = 2^n u[n] $ will have a transfer function with a region of convergence.