propagation error

The paper analyzes the reason of track shape error and the phenomenon of radial error propagation.

本文分析了自伺服过程中产生轨道形状偏差的原因及其带来的径向误差传递现象.

The error of missile speed was deduced by the distance error. The distance error was obtained by a microwave radiometer directly detecting the atmospheric radiation brightness temperature on the path of radio wave propagation.

其速度（距离变化率）误差是利用与距离误差△R之间的关系得到，而△R由微波辐射计在电波传播路径上直接测量大气辐射亮度温度得到。

Compared with traditional terrestrial sensor networks ( TSN) that use radio communication, underwater acoustic communication has low bandwidth, high bit error rate ( BER), and long signal propagation delay.

与传统的陆地传感器网络使用的无线电通信相比，水声信道具有通信带宽低、误码率高、传播时延大的显著特点。

On the base of analysis of the standard back propagation algorithm, a BP improving algorithm which adjusts the error signal function and method of training is proposed. This improving algorithm has the advantages of slightly modify and easy implement.

在此基础上，提出了一种针对误差信号函数和学习规则进行改进的BP改进算法，该改进算法具有改动幅度小，实现相对容易的特点。

In non-line-of-sight propagation ( NLOS) environment, the location performance of Chan ′ s algorithm is significantly degraded because the time difference of arrival ( TDOA) measurement is biased by a NLOS error.

在非视距传播（NLOS）环境中，到达时间差（TDOA）测量值受NLOS误差的影响而产生偏差[1]，使得Chan算法[2]的定位性能显著下降。

It is a three layered back-propagation neural network in which the error function is a cross entropy function.

这是一个以交叉熵函数为目标函数的三层反向传播神经网络。

Chaotic encryption and error propagation control based video watermarking for AVS in compressed domain

基于混沌加密和误差扩散控制的AVS压缩域视频水印

The neural network program module is trained offline, and uses error back propagation ( BP) algorithm, which is realized through a three layered feedforward neural network model.

神经网络模块采用离线训练方法，应用误差反向传播（BP）算法，选择前向三层人工神经网络的模型得以实现。

The model and learning algorithms of BP ( Error Back Propagation) network, which is widely applied, is recommended, and RBF ( Radial B asis Function) is simply recommended contrastively.

本文首先介绍了神经网络中应用最为成熟广泛的BP网络的模型及其学习算法，并简单对比介绍了RBF网络。

Method: Artificial neural network based on error back propagation was used.

方法: 应用人工神经网络误差反向传播模型进行含量测定.