Sentence examples for virtual directions from inspiring English sources
To see virtual directions float in front of you, you have to either look at the world through the screen of a smart phone, or don a pair of bulky, goofy video goggles.
The number of those virtual directions N can be chosen with a compromising between computation load and the depth of spread nulls.
By adding certain virtual directions, the proposed PODB method can also generate broadened nulls in a defined range around directions of LU.
Virtual direction might have worked for the artists, but what about Cerci – did being beamed-in via Skype help the directorial process at all?
On the subject of 'kinetic sculptures' our media expert gushes with enthusiasm and it illustrates their move away from the virtual direction to the more physical one, where they work with pixels in space as opposed to pictures on a screen.
Also the virtual control directions of the system are unknown.
The Nussbaum function is used to handle the unknown virtual control directions and the backstepping technique has been applied for controller design.
In this paper, a direct fuzzy adaptive robust control approach is proposed for a class of SISO nonlinear systems with completely unknown virtual control directions, unknown nonlinearities, unmodeled dynamics and dynamic disturbances.
In the backstepping recursive design, fuzzy logic systems are employed to approximate the combined nonlinear uncertainties, a dynamic signal and Nussbaum gain technique are introduced into the control scheme to dominate the dynamic uncertainties and solve the unknown signs of virtual control directions, respectively.
In Figure 4, we also consider the average beam pattern of PODB method with broadened nulls, which assumes two virtual LU directions around ϕ = 30°, which are located at ϕ1 = 20°, ϕ2 = 40°.
However, those methods need to know the direction of the real audio source to do objective-oriented coding, or estimated a virtual source direction to do downmixing and parametric coding.
