A costas loop regenerates a carrier and its phase from an input signal with minimal carrier content. It uses a phase locked loop and voltage controlled oscillator to maintain phase relationship and demodulate the message. The loop calculates the carrier frequency based on the sideband positions in the frequency spectrum. A costas loop is an […]

A Costas loop regenerates a carrier and its phase from an input signal with minimal carrier content. It uses a phase-locked loop and voltage-controlled oscillator to maintain the phase relationship of a signal with a reference signal. It can set the carrier frequency and generate a voltage. The loop rebuilds the carrier using carrier phase […]