1results about How to "Realize precise measurement" patented technology

This invention discloses an integrated laser ranging and communication method based on baseband signal combining modulation: Step 1: On satellite A, a laser emitter generates laser light; Step 2: The power ratio of the communication signal to the pseudocode signal is set to P; Step 3: The communication signal and the pseudocode signal are input into a microwave combiner for combining, and then enter the MZM to obtain the modulated laser; Step 4: The modulated laser light enters an optical amplifier and is then emitted; Step 5: On satellite B, an optical antenna receives the signal light; a local oscillator laser generates a light wave; Step 6: The light wave and the signal light are mixed in a coherent receiving module to generate two orthogonal intermediate frequency signals; Step 7: The signal processing module performs carrier synchronization on the two orthogonal signals and sends them to the communication demodulation unit and the pseudocode acquisition and tracking unit. This invention achieves the goal of integrating precision measurement and laser communication with minimal impact on the signal-to-noise ratio of the communication link.