target echo的例句大全

Characteristics of radar target information can be gain from the echo. The radar measurements have been for the purpose of inherent characteristics of radar target parameters-radar cross section ( RCS), the polarization scattering matrix and so forth.

雷达目标特征信息隐含于回波之中，雷达测量的目的就是为了得到表征目标固有雷达特征的参数&雷达散射截面（RCS）及其极化散射矩阵等。

The paper mainly researched in sampling and storing echo signal of the millimeter-wave frequency stepping radar and signal processing. The echo signal is used for the Inverse Fast Fourier Transform to obtain the target one-dimensional distance diagram, and gain the target distance, and so on.

本文主要研究毫米波频率步进雷达目标回波信号的采集存储和信号处理，对目标回波信号采用IFFT脉冲压缩处理得到目标一维距离成像，提取目标距离等信息，并利用MFC编程实现这一过程。

The target recognition observes the following process-first resolving the wavelet of radar echo-signal, selecting the optimum wavelet bases via given training sample sets based on distance criteria to get the feature vector for target recognition, thus the targets are recognized by the effective features.

首先，对雷达回波信号进行小波分解，利用距离准则，选择最优小波包基，从被识别的信号中提取具有最大可分性的特征，得到目标识别的特征向量，由此进行目标识别。

The type and overall length of a coming ship are identified by the comprehensive target identification system according to the information including the echo waves input from ARPA radars.

叙述了如何根据ARPA雷达输入的来船回波等信息，经雷达目标综合辨识系统，识别出来船的类型和船长。

3-D Reconstruction and High Frequency Echo Characteristic Analysis Based on Target Image

目标图片三维重建和高频回波特性分析

3D laser imaging is a method that synthesizes the target image by laser echo 2D distribution and range information.

三维激光成像通常是指利用发射激光信号的目标回波二维分布信息和目标距离信息合成目标图像的一种成像方法。

The third chapter discusses the Ground Moving Target Indicator technique. First, founds the model of moving point target and discusses the effect of the movement to the echo Doppler center frequency and Doppler rate.

第二，建立了运动目标回波模型，并分析了目标运动对回波多普勒中心频率和调频率的影响，进而分析了目标运动特性对成像造成的影响。

Target Number Recognition by Non-Coherent Low-Resolution Radar Based on Echo

基于回波包络的非相参低分辨率雷达的目标架数判别方法

Echo modeling and simulation in a PD fuze target simulator for phase modulation by pseudo random coding are studied.

针对伪码调相脉冲多普勒引信目标模拟器的视频回波信号进行建模与仿真。

The target properties of low altitude radio fuze are discussed at length. The interaction between electromagnetic waves and ground is analyzed. The definition of back scattering coefficient and its influence on echo signals are discussed.

分析了电磁波与地物之间的相互作用，以及目标散射特性对引信回波信号的影响。

Usually, conventional incoherent weather radar is used to provide only the information on the position of a weather target and its radar reflectivity by detecting echo intensity.

通常非相干的常规天气雷达的应用仅仅是通过雷达回波强度的探测来提供天气目标物的位置和其反射率的信息。

The range resolution of narrowband radar is low. Influenced by different target scattering characteristics, there are differences in echo envelop of different targets, which could be used for target recognition.

对窄带雷达来说，虽然其距离分辨率较低，但受不同目标散射特性的影响，不同目标间的回波包络会有一定差异，这一差异信息可以用于实现目标识别。

Experimental result shows that under condition of isothermal layer channel, long distance and low target speed, target pulse-pulse echo correlation coefficient is about 0.7, for a stable time of about 10 s.

实验结果表明：在等温层信道中，目标距离较远、目标相对速度较低的情况下，海上目标回波脉间相关系数在70%左右，至少在10s内时间中，可以保持较强的相干性；

The target strength and echo-to-reverberation ratio of a buried target in sediment

海底掩埋物的目标强度和回声信混比

Target strength and Echo-to-reverberation ratio of bottom mines

沉底水雷目标强度与回声信混比

Through the modeling and simulating, the pattern of scattering echo and the relation between target strength and azimuthal angle are obtained when the source and receiver are separated.

通过建模与仿真实验，得出了椭球目标在双基地条件下，散射回波的空间分布，以及在不同分置角时，散射强度随目标姿态角的变化关系曲线。

Radar target track simulation is the key task of radar echo signal simulation system.

雷达目标航迹仿真是雷达仿真系统中模拟目标回波信号的关键。

Design of distance simulation circuit for a fuse target video frequency echo simulator

引信点目标视频回波模拟器距离模拟电路设计

Analysis of Target Strength and Echo in Time Domain for Bistatic Sonar

双基地目标强度及回波时域特性研究

the radar signal processing mainly computes the aliasing signals such as noise in the radar echo signal, filtering the interference signals and extracting useful target signals for processing.

雷达信号处理主要是对雷达回波信号中的噪声、干扰等混叠信号进行滤波，滤掉干扰信号，提取出有用的目标信号，之后再进行后续分析与处理。