Howtosignalprocessing
- What is a complex envelope?
- What is a complex signal?
- What is complex baseband?
- What is analytic envelope?
What is a complex envelope?
The complex envelope is just the low-pass part of the analytic signal. The analytic signal low-pass signal has been multiplied by the complex exponential at the carrier frequency.
What is a complex signal?
A complex signal consists of two real signals - one for the real and one for the imaginary part. The linear processing of a complex signal, such as filtration with a time-invariant linear filter, corresponds to applying the processing both to the real and the imaginary part of the signal.
What is complex baseband?
Key focus: Complex Baseband Equivalent Models are behavioral models that simplify the simulation, saves computation memory requirements and run time.
What is analytic envelope?
Abstract—Analytic envelope is the most prevalent definition of envelopes of real-valued signals. However, analytic signals are not adopted by some envelope detectors in application. This paper investigates envelopes of real-valued signals from a signal processing perspective.
