回波

四肢骨关节MR梯度回波在半月板损伤检查中的应用

Dedicated MRI gradient echo used in meniscus injury diagnosis

基于PCI和DSP视频回波模拟系统

A System Simulating Video Echo Based on PCI and DSP

膝关节软骨MRI梯度回波序列的参数优化

Optimal parameters of MRI different FE sequences of knee articular cartilage

调频连续波SAR回波模拟研究

A Research on Echo Simulation of Frequency Modulated Continuous Wave SAR

SAR原始回波信号生成算法的性能比较研究

Performance Comparison of Algorithms for SAR Raw Signal Generation

基于真实反射场景的SAR原始回波数据模拟

SAR Raw-data Simulation Based on Real Reflection-field SAR Images

采用快速小角度激发扰相梯度回波序列（FLASH）行动态增强扫描。

Dynamic MR contrast-enhanced imaging was done by FLASH 3D spoiled gradient echo sequence .

基于PCI总线雷达回波信号的模拟与采集

Simulation and Acquisition of Radar Echo Signal Based on PCI Bus

而PCI总线接口控制器的设计是雷达回波记录与重演中的关键。

The design of PCI bus target interface is design key .

介绍了一种利用目标模拟器产生合成孔径雷达（SAR）场景目标回波的方法。

This paper introduces a method of SAR surface target echo generation applying target simulator .

分布式小卫星SAR回波信号的相关性

Correlation of Distributed Small Satellites SAR Echoes

用加脉冲梯度场的NMR自旋回波法测量高分子聚合过程中的自扩散系数

Self-Diffusion Coefficients of Polymer in Polymerization Measured with Pulsed Field-Gradient NMR Spin Echo Methods

空心平板光波导中三脉冲TE模光子回波

Three-Pulse TE Mode Photon Echo in Hollow Slab Optical Waveguides

引信体目标视频回波模拟器SDRAM控制器的FPGA设计

FPGA Design of SDRAM Controller for Wireless Fusee Body-Target Video Frequency Echo Simulator

阐述从高频地波雷达海洋回波反演海洋表面流中，使用MUSIC算法提取径向流方位必须的信号预处理。

In this paper , signal preprocessing for bearing determination of ocean surface radial current mapping by HF ground wave radar based on MUSIC is investigated .

LFM脉冲雷达回波Doppler与多径时延的联合估计

Joint Estimation of Doppler and Multipath Time Delay of Overlapping Echoes for LFM Pulse Radar

平板介质波导中TE模光子回波

TE Mode Photon Echo in Slab Dielectric Waveguide

与普通渐变过渡段结构相比较，在X波段的大部分范围内，这种新型结构可使回波衰耗降低约10分贝。

About a 10-dB improvement in return loss has been obtained over most of the X-band as compared with the ordinary tapered transition structure .

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。

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

针对引信体目标视频回波模拟器中高速大数据量传输、下载和存储的需要，提出了用现场可编程门阵列（FPGA）设计SDRAM控制器的方案和方法。

A SDRAM controller for wireless fusee body-target video frequency echo simulator is designed based on FPGA .

在特征提取算法中，主要讨论了APEX算法在超声波检测回波信号特征提取中的应用。

In the extraction methods , the APEX was studied in the ultrasonic detecting signal .

用自旋回波SPIRAL测得柠檬的T2数值与用常规方法得到的数值完全相符。

The T2 value measured using the spin-echo SPIRAL approach was exactly the same of that measured by usual method .

用分层双线性滤波器实现DMTADSL中的非线性回波抵消

Implementation of Nonlinear Echo Cancellation in DMT ADSL by Layered Bilinear Filters

MRCP及MRU采用单次激发快速自旋回波序列。

MRCP and MRU were obtained by single shot FSE sequence .

文中还对CW雷达回波振幅统计特性作了探讨。

The theoretical analysis is also made for the amplitude statistical property of the CW radar echo fluctuation .

非线性Chirpscaling算法可以处理大耦合SAR回波，实现精确聚焦。

Nonlinear Chirp Scaling ( NCS ) algorithm is able to deal with high coupling SAR echoes and achieve fine focusing images .

目的：探讨MRI中三维T1加权成像梯度回波（3DT1WI/TFE）序列在肝硬化结节诊断中的价值。

Objective : To study the 3D T 1WI / TFE sequence of MRI applied in the diagnoses of hepatic cirrhosis nodules .

对UWB线性调频信号的目标回波进行仿真，得到早期响应回波。研究线性调频脉冲压缩雷达目标仿真，给出了仿真结果并进行比较分析。

We emulate the pulse signal radar of linear frequency modulation , The emulation results are presented , analyzed and compared .

研究了话音通信中的回波抵消问题，尤其是传统LMS算法的收敛性问题。

This paper discusses the echo cancel in voice communication , especially the convergence properties of conventional LMS algorithm .

梯度回波序列（GRE）在脊椎病变的诊断作用

To evaluate the diagnostic role of gradin-echo in spondylopathy