Thus,the downlink signals can enhance more than 10dB and the uplink signals 8dB,which greatly expands the coverage semidiameter of base station system.
to generate WD record 0f the optimal downgoing wave energy by projectingthe three-component data in direct P-wave polarization direction to create Wu record of the optimal upgoing P-wave energy by projecting inthe polarization direction of upgoing P-wave.
It is questionable for the International Telecommunication Union (ITU) to select the frequency band of 2 GHz for vehicular mobile telecommunication and unreasonable to distribute it over the downlink and uplink channels symmetrically.
By this protocol, the bandwidth can be allocated dynamically to the uplink and downlink traffic with on-demand assignment and the transmission of Mobile Terminals (MTs) can be perfectly scheduled by means of polling.
In this paper, a Direction Of Arrival (DOA) estimation algorithm is proposed for multiuser signals through uplink asynchronous multipath Code Division Multiple Access (CDMA) channels.
The vegetation pattern in the upstream of Minjiang River, and its relationship with environment factors, such as landscape position (elevation, slope, aspect), precipitation and temperature and soil are analyzed in this paper.
In addition, the vegetation distribution pattern of upstream of Minjiang River was closely related with elevation and temperature, but the relationship between vegetation and precipitation was not statistically significant.
The results were: (1) The selected six catchments at the upstream of Minjiang River, China were different in landscape patterns in terms of landscape type and cover.
It is shown that particles are deposited on fibers from an upgoing slow flow as a result of the action of van der Waals forces that balance the gravitational particle displacement from the flow lines near the fibers
A set of 128 images of the Black Sea obtained using the SeaWiFS color scanner data in 1998-2004 was processed to estimate the new capabilities of indication of the vertical inhomogeneity of the upgoing normalized radiance.
By integrating in upgoing and downgoing stage, the point on the raypath can be determined and the propagation channel in HF radio telecommunication may be recknoed and predicted.
In this paper we present the formula for the generalized reflection coefficient that relates the upgoing wave to the downgoing wave at the interface between an isotropic homogeneous half-space and an isotropic inhomogeneous dielectric slab.