Correlation method estimation of the modulation signal in the weak equivalence principle test*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11575160, 91636221, and 11605065).

Luo Jie1, Shen Liang-Cheng1, Shao Cheng-Gang2, †, Liu Qi3, ‡, Zhang Hui-Jie1
       

The power spectral density of the simulation signal of angular deflection, θ(t), of the pendulum. The peak f is the free torsional oscillation θd(t). The peak f1 is the modulation signal.