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Aliasing error bounds are derived for one- and two-channel sampling series analogous to the Whittaker-Kotel'nikov-Shannon series, and for the multi-band sampling series, and a "derivative" extension of it, due to Dodson, Beaty, et al.
      
Aliasing in the one-channel case is shown to arise from a transformation with similarities to a projection.
      
An Estimation of the Truncation Error for the Two-Channel Sampling Formulas
      
Guanidine-type compounds that reached clinical status include amongst others the potassium channel opener, pinacidil and the histamine H2-receptor antagonists (e.g.
      
The tetra-n-butylammonium cations were stacked to give two columns within each channel with cross-sectional size of about 2.30 nm × 0.93 nm.
      
The tetra-n-butylammonium cations were accommodated in a zigzag fashion within each channel.
      
The channel parameters are estimated and transmitted signals are jointly detected by a simple recursive algorithm derived from the EM/SAGE algorithm.
      
However, the fiber nonlinear effects and polarization mode dispersion severely limit the performance of the system when signal propagates at 40 Gbit/s in a single channel.
      
The first is that the decision threshold of RAKE is dynamic for different channel environments; the other is that we can improve the traditional TH-PPM modulation, which is, encoding the transmitted data symbol with balance code.
      
Compared with the dynamic threshold method, the balance encoding scheme can be implemented more easily, and is more robust to the channel time variant characteristics, the channel estimation of RAKE receiver and the combination techniques.
      
Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm
      
As a necessary input parameter for maximum a-posteriori(MAP) decoding algorithm, SNR is normally obtained from the channel estimation unit.
      
Moreover, the proposed algorithm can be used in both homogenous and heterogeneous wireless networks, and it can also work without an explicit propagation channel model or the position information of nodes.
      
The system is mainly composed of multiple ADSP-TS101s, a multi-channel synchronous sample module and a field programmable gate array (FPGA) chip.
      
Because the protocol is based on the broadcast channel, it is also suitable for key agreement in wireless communications, especially in ad-hoc networks.
      
Fairness based channel borrowing strategy in multimedia LEO satellite communications
      
Finally we discussed the fairness for the borrowed nonreal-time connections under three different channel borrowing methods.
      
In underwater acoustic communication, because the available bandwidth of the channel is severely limited, the direct-sequence spread-spectrum scheme can only be realized at low bit rates.
      
However, in this case, due to the rapid time-variability of the underwater channel, and the influence of inter-symbol interference (ISI) and inter-channel interference (ICI), the conventional rake receiver may fail to function.
      
The single-channel and multi-channel common-view observation data were processed respectively.
      
 

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