pilot signal
英 [ˈpaɪlət ˈsɪɡnəl]
美 [ˈpaɪlət ˈsɪɡnəl]
引航信号，控制（指示，导频）信号
双语例句
- Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸好一位驾驶员发现了这个信号，用无线电给最近的市镇发了电报。 - The radio man was able to raise shore headquarters after three tries. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
经三次尝试后报务员终于与岸上的总部建立了无线电通信。幸好一位驾驶员发现了这个信号，用无线电给最近的市镇发了电报。 - A channel over which pilot signal is transmitted.
可在其上传输导频信号的一种信道。 - Study on discrete wavelet packet modulation based on pilot signal and maximum likelihood estimation algorithm
基于导频信号和最大似然估计算法的离散小波包调制的研究 - In order to get the adaptive ability for the feed-forward power amplifier, this paper presents a design of feedforward power amplifier based on pilot signal with a single-chip microcomputer.
为了使前馈功放具有自适应能力，设计了一种基于单片机实现的导频前馈功放。 - See if you pick up a pilot signal.
看看你能不能接收到定位信号。 - A Method of Channel Estimation for OFDM Signal Based on Pilot Signal
OFDM中利用导频的一种信道估计方法 - Thirdly, the dissertation presents an anti-interference technology of adaptive array for non-spread spectrum signal using a pilot signal, by which a non-spread spectrum system can use the decoupled 2-D RAKE receiver and the original non-spread spectrum system need not be modified.
第三，提出了采用扩频信号作为导引信号的非扩频信号自适应阵列天线抗干扰方法。该方法使得非扩频系统可以采用解耦合空时2-DRake接收机，而且不改变原非扩频系统。 - For a QAM system embracing differential coding procedure, the proposed approach is capable of supplying stable and optimal synchronization information for subsequent demodulation without specially designed pilot signal.
对于包含差分编、译码的QAM系统，上述方法不需要专门设计同步头即可为正确解调提供稳定可靠的同步信息，非常适宜数字实现。 - 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.
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。 - This paper analyzes on the OFDM system model, introduces the frequency offset estimation algorithm, and proves the advantages of the frequency offset estimation algorithm of assistant pilot signal based on channel estimation through the simulation analysis.
分析了OFDM系统模型，介绍了频率偏移估计算法，并通过仿真分析验证了基于信道估计的辅助导频信号的频偏估计算法的优点。 - In recent 3GPP proposals, fast cell selection ( FCS) is proposed, where the user equipment ( UE) selects the base station to communication only by the strength of the pilot signal.
3GPP相关文档提出通过快速小区选择（FCS）来解决上述问题，其中用户设备（UE）以导频信号强度作为选择通信小区的唯一依据。 - A new method of pilot-symbol-aided ( PSA) channel fading estimation is proposed, which uses the data symbols and the pilot symbols to perform channel fading estimation and fading compensation, but normally only pilot symbols are used to estimate the signal distortion.
本文提出一种新的导频符号辅助下的信道衰落估计方法.它同时利用导频符号和数据符号进行信道衰落估计和补偿，而不同于传统的信道衰落估计只利用导频符号的信息。 - In the acquire phase, it utilizes the training symbols to achieve packet header detection, frequency offset estimation and symbol timing. During the tracking phase, it makes use of the pilot signal and cycle prefix to fulfill the tasks of carrier frequency tracking.
在捕获阶段利用训练符号完成了数据帧头捕获，频偏粗估计，符号定时等任务，在跟踪阶段利用循环前缀，导频信号完成载波频率跟踪等任务。 - Channel vector is estimated only by utilizing pilot channel in 2-D RAKE receiver conventionally. The estimation error will be large when the power of pilot signal is weak. A novel algorithm of channel vector estimation is proposed in this paper.
在二维RAKE接收机中，通常仅用导频信道来估计信道矢量，当导频功率较低时，估计误差较大。 - The effects of atmospheric turbulence on the detection of the pilot frequency signal of the laser communication systems in atmosphere
大气湍流对激光大气通信机导频信号检测的影响 - A new adaptive serial search pseudonoise ( PN) code blind acquisition scheme is proposed, which does not need the help of the pilot signal.
提出了一种具有恒虚警概率的串行搜索伪随机码自适应盲捕获方法。 - To estimate the channel well, we introduced a pilot signal aided modulation ( PSAM) technology, and utilize certain interpolation way to get the statistical effect of channel, hence afford loss compensation for signal demodulation.
为解决信道估算的问题，本课题引入导频信号辅助调制，应用一定的插值法，得到信道的统计特性，对信号解调进行衰落补偿。 - This paper deals with the estimation of elements phase using LMS algorithm with a narrow-band pilot signal, the algorithm can determine a time-varying steering vector adaptively and provide array shape information for beamforming.
本文利用具有窄带引导信号的LMS算法估计柔性天线阵各阵元的相位，能够自适应地确定时变的控制矢量，可以为动态波束形成提供阵形信息。 - 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。 - This paper develops a RAKE receiver algorithm that makes use of the pilot signal broadcasted by the TD-SCDMA ( division-synchronous code division multiple access) base station to obtain channel parameter estimation in the downlink of TD-SCDMA wireless network.
提出了一种RAKE接收机的算法，它利用时分&同步码分多址（TD＿SCDMA）无线通信系统的基站发出的导引信号获得TD＿SCDMA下行链路的信道参数估计。 - The Research of Pilot Signal Aided Correlating Receiver in WCDMA System
WCDMA系统的导频信号辅助相干接收技术 - This estimation algorithm doesn't need any training sequences or pilot signal, therefore improves band efficiency and lower computational complexity.
这种估计方法不需要利用任何训练序列或导频信号，提高了系统频带利用率。 - The auxiliary channel estimating process based on pilot signal is introduced, and a model for the auxiliary channel is presented according to the process.
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。 - If indoor and outdoor the same pilot frequency signal will switch, in principle, indoor signals should be used when entered into indoor environment. According to this problem, the method of switch control and realizing smooth excessive is summarized.
原则上规定，进入室内就要用室内的信号，本文针对这个问题，归纳出了切换的控制和实现平滑过度的方法。 - Chapter 3 derives the different pilot modes in wireless communication systems; the pilot signal design in LTE uplink transmission process, it also introduces commonly estimation about the minimum mean square error ( MMSE) channel estimation and least squares ( LS) channel estimation.
第三章研究了无线通信系统中导频方式的选择以及LTE上行链路传输过程中导频信号的设计，同时介绍了常用的最小均方误差准则估计（MMSE）和最小二乘信道估计（LS）的估计方法。 - In the proposed approach the Wiener filter based adaptive beamforming is incorporated with the conventional correlator to acquire the PN code and the adaptive beamforming weight with the help of the pilot signal.
在这种方法中，把基于维纳滤波的空域自适应波束形成和传统的相关器相结合，联合捕获PN码和自适应波束形成权值。 - Access to the channel gain distribution from the received pilot signal, and by this to construct the adaptive observation matrix, then combined with the distributed compressed sensing technology to build multi-channel joint estimation model, finally the correlation algorithm is used to estimate the channel.
该方法属于基于训练序列的信道估计方法，根据接收信号获取信道增益分布特点，构造自适应观测矩阵，利用Dcs理论构建虚拟信道建立多信道联合估计模型，最后利用相关算法得到估计信道。 - A method that combines automatic gain control technology with pilot signal in MRI receiver is introduced to improving the dynamic range of MRI receiver.
最后提出一种将导频信号与可控增益放大器相结合应用于直接射频磁共振接收机的方法，以此改善接收机动态范围，满足磁共振成像的要求。 - This paper describes a simple FPGA design principles based on the chosen reference pilot signal for the OFDM system based on pre-FFT beamforming algorithm, Carried out the design and implementation of FPGA.
本文在简单介绍FPGA设计原理的基础上，选择以导频信号为参考的基于OFDM系统的pre-FFT波束形成算法，进行了FPGA的设计与实现。