Discrete Frequency Axis
Understand how discrete frequency axes are formed from N time-domain samples and why only N unique complex sinusoids exist. Learn the relationship between discrete frequency indices and continuous frequency, sampling of the frequency axis, and the implications for digital signal analysis.
We'll cover the following...
We'll cover the following...
With discrete time domain samples, there are only complex sinusoids that are orthogonal to each other for .
The other option is , which we’ll investigate next.