Li Fan Wu

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Photon mapping is a widely used technique for global illumination rendering. In the density estimation step of photon mapping, the indirect radiance at a shading point is estimated through a filtering process using nearby stored photons; an isotropic filtering kernel is usually used. However, using an isotropic kernel is not always the optimal choice,(More)
This paper proposes an improved test method that can provide online service for the validation of IPv6 SNMPv3 agent. Test broker, as a negotiator between SNMPv3 agent and test engine, is commissioned to create and manage test operations. Test engine is delegated to perform test methodology on the SNMPv3 agent with IPv6 capabilities. This test framework can(More)
Many theoretical studies prove that the rate gyro can be used for navigation system of the spinning projectile, but these studies are insufficient experimental proofs under condition of the coning motion of the spinning projectile. In this paper, the motion equation of spinning projectile including coning motion and its numerical results are obtained. The(More)
This paper reports a multifunctional silicon micromachined gyroscope for determining attitude of the rotating carrier. Both the principle and the experiment of the gyroscope are presented to explain the multifunction. This article explains the way to determine the deflecting direction and deflecting position of the rotating carrier in the gravitation field.(More)
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