Digital Signal Processing Reference
In-Depth Information
behaviour of the active element. The calculations not only include second- and
third-order distortion, but also account for feedback-induced third-order dis-
tortion, the latter one being caused by intermodulation beat products between
the first-order signal component and second-order distortion at the summing
node of the feedback loop. Armed with this knowledge, the maximum distor-
tion suppression performance of a feedback system can be directly linked with
the
cut-off frequency
(
f
T
) parameter of a particular cmos technology. It is in-
dicated that there is always a trade-off between gain, bandwidth and distortion
performance in feedback-based amplifiers. Finally, taking the requirement of
stability into account, the linearity performance limitations of the two-stage
transistor amplifier in feedback configuration are derived.
Below is a brief schematic outline of the organization of this topic.
Chapter 1:
Chapter 2:
Modulation-aware
error coding.
Chapter 4:
Multipath resolva-
bility and reliability.
Introductory chapter.
Chapter 3:
ISSR signal recon-
struction method.
Chapter 5:
The concept of
pulse-based radio.
Chapter 6:
Implementation of a
pulse-based unit.
Chapter 7:
Appendix A:
Distortion in feed-
back based systems.
Wideband open-loop
linearized amplifiers.
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