Exact(9)
He said there had been intelligence reports of the militants moving groups of girls to Marte – a known training camp – and to the Gwoza hills, a range of caves and valleys spanning the border with Cameroon.
This knowledge is typically obtained by transmitting a known training preamble that allows the receiver to estimate the channel by executing an estimation algorithm.
The SNR estimation can be done by sending a known training sequence of symbols using OFDM with a conservative long CP.
For pilot-based estimation, a transmitter sends a known training sequence (TS) to the receiver before sending the actual data.
Within the acquisition step, a known training sequence is transmitted for all the users in the system.
Each user transmits a frame of data that comprises a known training data portion,, that is, a training sequence per subchannel.
Similar(50)
According to [4, 6], with a known train's location and velocity supplied by the communication-based train control (CBTC) system, it can be assumed that Doppler shifts are separately compensated for C-plane and U-plane.
Also, instead of a known train of impulses, some of the available sub-carriers in each transmitted symbol are assigned to predetermined patterns, which are usually called comb-type pilots.
The outputs are used to compute a correlation metric with known training symbols.
In most practical systems (e.g., WiFi, WiMAX), data is transmitted in bursts, and each burst is appended with a preamble that contains known training sequences to facilitate the initial synchronization and channel estimation.
The mean of the predicted classes departs considerably from the mean of the training samples for a number of classes on the left, indicating a poor match between the known training representatives and the predicted members of the classes.
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