Howtosignalprocessing
- What are signal transforms?
- Why transforms are used in signal processing?
- What are transforms used for?
What are signal transforms?
A transformation is a mathematical model that describes signal operations, where the original signal is treated as the input and the resulting signal as the output.
Why transforms are used in signal processing?
Transformations are useful because it makes understanding the problem easier in one domain than in another.
What are transforms used for?
It can be used to find properties of an unknown signal by comparing it to one or more known signals, a technique that lies at the heart of many common transform methods. The inner product is closely related to (cross) correlation, which is a simple form of pattern matching useful for aligning signals in time.
