Howtosignalprocessing
- What is bandpass sampling?
- What is the main idea of quadrature sampling of band pass signals?
- What is bandpass signaling?
- What is necessary for bandpass digital communication?
What is bandpass sampling?
Bandpass sampling performs digitization and frequency translation in a single process. In BPS, we can sample the signal at twice the information bandwidth and remain consistent with the Nyquist sampling theorem.
What is the main idea of quadrature sampling of band pass signals?
Abstract: Deterministic bandpass signals are considered in which the nonzero portions of the signal spectrum are confined to the frequency region 0⩽ ω0 - σ/2 ⩽ |ω| ⩽ω0 + σ/2, where σ > 0 is the "bandwidth" of the signal.
What is bandpass signaling?
A bandpass signal is a signal containing a band of frequencies not adjacent to zero frequency, such as a signal that comes out of a bandpass filter.
What is necessary for bandpass digital communication?
For distortionless bandpass transmission, it is only necessary to have a transfer function with constant amplitude and constant phase derivative over the bandwidth of the signal. In other words, for bandpass signals the requirement that the linear phase must pass through the origin can be relaxed.
