Multirate Signal Processing
Multirate Signal Processing is a branch of digital signal processing that deals with systems where different parts operate at different sampling rates. It involves techniques like decimation (downsampling) to reduce the sampling rate and interpolation (upsampling) to increase it, often using filters to prevent aliasing or imaging artifacts. This is essential for efficiently processing signals in applications like audio compression, communication systems, and image processing.
Developers should learn Multirate Signal Processing when working on systems that require bandwidth optimization, such as in digital audio processing (e.g., MP3 encoding), telecommunications (e.g., software-defined radios), or image resizing. It enables efficient data handling by reducing computational load and storage requirements, making it crucial for real-time applications and resource-constrained environments like embedded systems.