Implementation of Digital Lock-in Amplifier Based on High-level Synthesis

Recently, digital lock-in amplifiers (DLIAs) have been widely used in scientific research field for measuring weak signals. The method of implementing a DLIA hardware (like field programmable gate array) from the high-level specifications (such as C or C++) is required for software engineers. High-level synthesis (HLS) tool enables the realization of hardware design from high-level specifications automatically. The implementation of the DLIA by HLS is introduced in detail in this paper. The simulation results verify the feasibility of the implementation of the DLIA by HLS.