纯导频方式是采用专门的信道发生器模拟出纯粹的导频信号。
The way of pure pilot-frequency is one that adopts dedicated-channel generator to simulate pure pilot signal.
利用有限的导频信号进行信道延迟估计从而获得准确的符号同步。
Channel delay estimation via pilot sub-carriers is used to provide accurate frame synchronization in multipath channels.
首先介绍了基于导频信号的辅助信道估计过程，并据此给出了信道模型。
The auxiliary channel estimating process based on pilot signal is introduced, and a model for the auxiliary channel is presented according to the process.
在数字基带处理时，从正常载频信道中提取出导频信号，用于伪导频的发射。
When processing digital base-band, the signal of pilot-frequency was taken out from normal carrier channel and it would be used for transmitting pseudo pilot-frequency.
提出了一种基于导频信号和最大似然信道估计算法的离散小波包调制(DWPM)系统。
Discrete Wavelet Packet Modulation (DWPM) System based on ML (Maximum Likelihood) algorithm and Optimum Pilot Symbol Assisted Modulation (OPSAM) is studied for Rayleigh Fading Channels.
与数据符号中的导频信号联合进行估计，从而能跟踪信道的变化，进一步提高信道估计的性能。
It carries on the estimation jointly with the pilot signal of the data symbols, so that it can track the changes of the channel to further enhances the channel estimation performance.
该第一均衡器接收机34 A利用来自该用户的导频信号来根据该接收机的适应性算法训练均衡器。
The first equalizer receiver 34a utilizes the pilot signal from that user to train the equalizer according to the adaptive algorithm of that receiver.
提出了一种面向直接序列扩频（DS-CDMA）通信系统的基于导频信号的自适应信道估计方法。
The estimation scheme for DS-CDMA systems includes a computationally efficient and easily implemented pilot filter on CDMA forward channel.
这种方法可以更好地跟踪信道变化，显著地消除接收到的导频信号中的加性噪声，提高信道估计精度。
Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.
这种估计方法不需要利用任何训练序列或导频信号，进一步提高了系统频带利用率，降低了计算复杂度。
This estimation algorithm doesn't need any training sequences or pilot signal, therefore improves band efficiency and lower computational complexity.
由于公共导频信道无功率控制，有可能在接收端接收到的公共导频信号的功率很低，使得信道估计的误差变大。
Because there is no power control in CPICH, the received common pilot signal power is possibly very low if the mobile is far from the base station, and this time the channel estimates is inaccurate.
在一个例子中，控制器36考虑与接收的信号关联的导频信道，用于确定选择两个接收机哪一个来处理接收的信号。
In one example, the controller 36 considers a pilot channel associated with the received signal for determining which of the two receivers to select for processing the received signal.
在一个例子中，在实际接收所接收的信号之前分析导频信道。
In one example, a pilot channel is analyzed prior to actual receipt of the received signal.
在一个例子中，在实际接收所接收的信号之前分析导频信道。
In one example, a pilot channel is analyzed prior to actual receipt of the received signal.
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