DS的例句大全

Estimating Target Property in Submarine Threat Estimation based on DS Evidence Theory

潜艇基于D-S证据理论判断目标属性

As a technique of prenatal diagnosis, modified amniotic cell culture was successfully undertaken in 252 patients, 3 cases of them were identified with DS.

对252例适应症对象进行改良羊水细胞培养产前诊断，取得满意的成功率，并检出DS胎儿3例。

The main works done by this paper are: 1. Introduce the theory of blind estimation of PN sequence of single DS/ SS signal in and abroad the country, like Massey algorithm, Principle Component Analysis ( PCA) and Triple Correlation Function ( TCF).

整理目前国内外关于单个直扩信号扩频码盲估计的算法。如Massey算法，特征值分解法，三阶相关函数法。

Simulation of Hybrid DS/ FH Spread Spectrum Technique in LEO Satellite Telemetry& Control Link

混合扩频技术在低轨卫星测控链路中的仿真

A telemetry positioning receiver based on a new navigation system is introduced. It takes advantage of DS/ CDMA communication method and can efficiently work in high-dynamic and low SNR environments.

介绍一种基于新的定位导航体制的遥测定位接收机，该接收机采用直扩码分多址通信体制，可在高动态、低信噪比环境下正常工作。

Presently, the algorithm has been successfully implemented in the large-scale SPC telephone switching system DS-30 developed by China.

该算法已经在一台国产大型程控数字交换机DS-30上实现。

To improve the traditional method for detecting DS/ SS signals, this paper proposes a more effective method: the third-order correlation detection. This paper analyzes it theoretically and simulates it by computer.

针对传统直扩信号检测方法的不足，提出了一种更加有效的方法，即三阶相关检测法，并对这种方法进行了理论分析和计算机仿真。

Room temperature fracture toughness was measured by three-point bending test and the KQ value for the DS condition was much higher than that for the as-cast condition. The maximum fracture toughness was 19.7MPam~ ( 1/ 2).

三点弯曲试验表明，定向凝固后试样的室温断裂韧性也得到了明显的提高，K Q最高达到了19.7MPam~（1/2）。

Detection of ANA 、 ds-DNA concentration and its correlation with diseases and clinical application

ANA滴度、抗ds-DNA滴度检测与自身免疫性疾病相关性及临床应用价值探讨

Analysis of the Generation Mechanism of a Ds-inserted Rice Mutant with Double Tillers at One Tillering Node

水稻Ds插入双分蘖突变体形成机理的分析

DS Export has been improved to export metric unit systems more directly.

S输出能更直接的应用公制单位。

In DS CDMA channels with multipath and multiple access interference, this paper estimates blindly the user channel with extended space time channel model to process the blind MMSE detection.

在多径多址干扰DS CDMA环境中，本文根据空时信号模型，用扩展的盲方法估计用户信道，从而进行盲MMSE检测。

MC-DS-CDMA method with space-time coding

一种结合空时编码的MC-DS-CDMA方法

This paper combines the space-time coding technique and multicarrier communication into a novel MC-DS-CDMA method using multiple antenna transmitters.

该文将空时编码技术和多载波通信相结合，设计了一种新颖的基于多发射天线的MC-DS-CDMA方法。

The feasibility of this tech-nique was revealed through a theoretical analysis and experiments of 8 channel time-division multiplexing system. It has the simplicity of circuit configuration and affor-ds an immunity to the existing problems of PIM.

通过理论分析和8路时分多路设备的试验，说明这种调制技术的可行性，它具有脉冲间膈调制（PIM）的电路结构简单的优点，并免除了PIM存在的问题。

A Novel PN Code Timing Tracking Loop for DS/ CDMA Systems

一种改进型PN码定时跟踪环

Reduced-complexity timing tracking loop for MC DS-CDMA signals based on vector rotation

基于矢量旋转的MC DS-CDMA信号定时跟踪方案

Then a physical interpretation of pressure and thermal flux is discussed by introducing the momentum flux vector M and the energy flax(?) through a surface dS in flow field.

然后通过引入流场中某面元dS的动置流密度M和能量流密度δ来讨论压强和热流等量的物理意义。

I mean if I am moving on a horizontal plane, to know where I am, dxdy I should know x and y.So dS will be dx dy.

事实上如果我在一个平面上移动，要确定自己的位置的话，需要知道x，y坐标，所以dS就是。

Study on Simulation Platform of INS/ DS Integrated Navigation System

INS/双星组合导航系统仿真平台研究