查询词典 signals

Research into the method of establishing probability density function model of radar clutter signals Based on the careful analysis of the kernel estimation and the fundamental principles of the Legendre polynomial, the dissertation tentatively combines two and gets better results.

雷达杂波信号的概率密度分布模型建立方法的研究在认真分析了核估计和Legendre多项式的基本原理的基础上，探索性地将两者结合起来，取得了很好的效果。

A network with different topologic configurations is needed for flatness pattern recognition when strip width is changing, in this case the large learn assignment, slow convergence and local minimal in the network are observed, in order to solve these problems, first, a flatness pattern recognition GA BP network model with only 6 input and 3 output signals has been established based on Legendre orthodoxy polynomial, which is not only simple in structure but also is of clear physical meaning.

针对板宽变化时需要不同拓扑结构的神经网络才能完成板形模式识别任务，网络学习工作量大，网络存在收敛速度慢，易陷入局部极小等结构性能不佳的问题，首次建立了以勒让德正交多项式为基模式的只用 6个输入信号、3个输出信号的板形模式识别 GA- BP网络模型。

The localization principle of GPS is the localization of finding range of space of surveying in fact, utilize until 20200km high altitude uniform distribution 24 satellite at 6 track launch, find range letter number and signal carrier on average, users receive these signals and measure the satellite distance to the receiver through the receiver, through knowing ground position coordinate once making mathematical calculations in serial equations.

GPS的定位原理实质上就是测量学的空间测距定位，利用在平均20200km 高空均匀分布在6个轨道上的24颗卫星发射测距信号码和载波，用户通过接收机接收这些信号测量卫星至接收机之距，通过一系列方程演算便可知地面点位坐标。

The localizat ion principle of GPS is the localization of finding range of space of surveying in fact,utilize until 20200km 你好gh altitude uniform distribution 24 satellite at 6track launch,find range letter number and signal carrier on average,users receive these signals and measure the satellite distance to the receiver through the receiver,through knowing ground position coordinate once making mathematical calculations in serial equations.

GPS的定位道理本色上就是测量学的空间测距定位，利用在均等20200km高空匀称分布在六个轨道上的24颗卫星发射测距旌旗灯号头和载波，用户路程经过过程接收机接收这些旌旗灯号测量卫星至接收机之距，路程经过过程一系列方程演算即可知地面点位坐标。

The compared result of experiment and simulation shows that experiment signals gotten from the transient light signal receiver platform have lower distortion and better quality.

测试与仿真比较的结果表明，利用本文技术搭建的微弱高速瞬态光信号检测平台得到的实验信号失真小质量高，完全可满足实验的需要。

Accordingly, the study on the characteristic of penetration of laser beam through the atmosphere is significant basis in choosing laser lamp-house and the receiver of light signals i.e .

因此，研究激光大气传输特性是我们选定激光光源和光信号接收器的重要依据。

The sending end when the use of pulse modulation approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.

发送端采用脉时调制方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外发射管以光脉冲的形式发送出去；接收端将接收到的光脉转换成电信号，再经过放大、滤波等处理后送给解调电路进行解调，还原为二进制数字信号后输出。

The light valve (1) is used to control the transmission of light emitted by the light source (3) based on signals which are present in an electronic form.

光阀(1)用于根据呈电子形式的信号控制由光源(3)发射的光的传输。

To investigate this, I used a filter bank to obtain a set of signals locked to the incoming line frequency.

为了研究这一问题，我使用了一个滤波器组，来获得一系列固定在市电频率的信号。

What makes a DSL connection so useful is that it sends signals over the telephone line at such a high frequency that it does not disturb the normal operation of the phone line.

更令dsl连接，使有用的是，它发出的信号透过电话线在如此高的频率，它不扰乱正常运行的电话线路。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。