ECHO的例句大全

An underwater target echo detection method is proposed based on Gram-Schmidt orthogonalization algorithm.

提出了一种基于Gram-Schmidt正交化算法的水下目标回波检测方法。

The Application of Target Echo Signal Based on Multi-highlight Model in Underwater Acoustic Countermeasure Simulation System

基于多亮点模型的目标回波信号在水声对抗仿真系统中的应用

Design of Wideband Radar Target Echo and Jamming Simulator

宽带雷达目标回波和干扰模拟器设计

Target echo characteristics and elastic parameters inversion were performed in the theory and experiment in the thesis.

本文对板状目标的回波特性和反演材料的弹性参数分别进行了理论和实验研究。

The high-order statistic of reverberation and target echo was analyzed.

通过分析混响和目标回波的高阶统计特性，研究了基于高阶统计分析的特征检测方法（HOSA-SVM）。

Cramer-Rao Bound of Parameter Estimation of Target Echo Signal of CW Radar

连续波雷达目标回波信号参数估计的克拉美-罗界

The Effects of Step Frequency and Conical-scan Antenna on the Target Echo Wave Signal

频率步进圆锥扫描体制天线对目标回波信号的影响

Finally, the results of the simulated target echo signals passing through a compressed filter are analyzed.

最后分析了模拟目标回波经脉压滤波器的处理结果。

The theoretical and experimental studies on bottom target echo characteristic in shallow sea channel are presented in this paper.

本文介绍了浅海信道下沉底目标回波特性的理论与实验研究。

It gets range error and speed error by analyzing stored N-times sampling target echo waveform.

距离-速度二维波形分析数字动目标跟踪是通过高速采样存储N次雷达脉冲回波信号，在MTD处理（如FFT）后，分析回波波形信息获取目标的距离和速度误差而进行自动跟踪的。

Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.

并且讨论了在脉冲多普勒相参体制雷达下目标回波的相位信息以及目标信号的多普勒谱特性。

One of its main techniques is to extract weak target echo signal submerged by strong noise and clutter.

如何从强噪声和杂波中提取微弱的目标回波信号是无源探测系统的一项关键技术。

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。