Frequency Estimation and Noise Reduction in Homodyne Grating Interferometer Based on Third-Order Generalized Integrator-Frequency-Locked Loop With Damping Ratio Adaptation. - Weicheng Wang; Siyu Jin; Zhaowu Liu; Xin'ge Qian; Shuai Pi; Wenhao Li; Jun Lin 003 (IEEE Trans. Instrum. Meas., 2025)