Sun Feng

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In comparison with other ways, it introduced the advantages and the main application of modern high speed flywheel energy storage(FES). It discussed the composition and principle of FES system. It presented the key techniques development of motor/generator (M/G) for the FES system in recent years, and summarized the latest developments of three machines(More)
Smoother is a method of improving filtering accuracy more. Standard Gaussian filter and Gaussian smoother formulation is presented in this article. With respect to high dimensional state space model, CKF is an algorithm design with more superiority. Its high stable style of square root CKF is depicted, accordingly square root FI-CKS theory derivation and(More)
Rotary steerable drilling system is a Mechatronics tool that generated by the development of directional drilling. The drill string attitude should be measured in real-time in the rotary steerable drilling process. So the strap-down measurement system in this paper was developed, installing the triaxial accelerometer and triaxial fluxgate sensors to the(More)
The method of decentralized estimation is one that is fulfilled through decomposition of state space. Target tracking model with turning angular unknown has both nonlinear state function and measure function. Regular particle filter and UKF are both divergent through simulation. Then decentralized particle filter method was used by dividing state and state(More)
An anomaly recognition algorithm for the Doppler velocity log (DVL) is proposed in this paper. The integration of strap-down inertial navigation system (SINS)/DVL is used in this approach. This approach use two SINS/DVL integration systems with different measurement noise covariance matrices and make each of them estimate the state vector simultaneously. As(More)
In the title three-dimensional heterometallic complex, {[AgHo(C(6)H(4)NO(2))(2)(C(2)H(3)O(2))(H(2)O)]ClO(4)}(n), the Ho(III) ion is eight-coordinated by four O atoms from four different isonicotinate ligands, three O atoms from two different acetate ligands and one O atom of a water mol-ecule. The two-coordinate Ag(I) ion is bonded to two N atoms from two(More)
The random drift of fiber-optic gyroscope (FOG) and zero bias of accelerometer are the main factors for the precision of FOG strapdown system, and theoretical study shows their negative influences on the system can be greatly reduced by the azimuth rotation method. However, the results of azimuth rotation experiments using the medium precision FOG strapdown(More)
In the title binuclear complex, [Fe(2)(C(8)H(7)O(2))(4)(C(12)H(8)N(2))(2)(H(2)O)], the Fe(II) ion is six-coordinated by three carboxylate O atoms from three 4-methyl-benzoate ligands, two N atoms from two 1,10-phenanthroline ligands and one bridging aqua ligand in a distorted octa-hedral geometry. The coordinated water mol-ecule acting as the bridging(More)
Y wave-guide is an essential component in the close-loop interference fiber optic gyroscope (IFOG) system. The application of Y wave-guide in IFOG enables FOG to have high scale factor linearity and has significantly improved scale factor stability and repeatability. The main function of Y wave-guide is polarizing, coupling and modulating the phase. Phase(More)