What noise management system analyzes noise and signal characteristics to partially remove noise?

Digital Signal Processing (DSP) uses mathematical algorithms to analyze the audio or intermediate frequency signal in real-time. It acts as a smart filter, distinguishing between the random characteristics of background noise and the periodic patterns of a desired voice or CW signal. Other noise management systems work differently. A noise blanker briefly mutes the receiver during sharp impulse spikes (like ignition noise), and a noise limiter clips amplitude peaks. Only DSP actively analyzes complex signal characteristics to mathematically subtract the noise.