The Nyquist Rate is a fundamental concept in signal processing that defines the minimum sampling rate required to accurately capture a continuous signal without losing information. Specifically, it states that a signal must be sampled at least twice its highest frequency to avoid aliasing, which can distort the signal. For example, if a signal contains frequencies up to 1,000 Hz, the Nyquist Rate would be 2,000 samples per second. Sampling at this rate ensures that the original signal can be perfectly reconstructed from the sampled data, maintaining its integrity and quality in digital form.