The dual approach of digital and analog lock-in amplifier technologies has continued to advance the precise extraction of weak signals from noise-laden environments. These devices are indispensable in ...

The digital signal controller (DSC) has emerged to handle many of the engineering challenges that previously required both microcontrollers (MCUs) and digital signal processors (DSPs). A hybrid of ...

In this DI, high school student Tommy Liu modifies a popular low-cost DIY oscilloscope to enhance its input noise rejection and ADC noise with anti-aliasing filtering and IIR filtering. Three ...