雷达回波

基于C和Matlab的雷达回波信号仿真软件的实现

Realization of Simulation Software of Radar Echo Signal Based on C # and Matlab

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

利用雷达回波与GIS技术反演面雨量研究

Research on Radar Echoes and GIS Technique for Deducing Regional Rainfall

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 .

基于MonteCarlo法的雷达回波模拟和检测概率计算

Simulation of Radar Echo and Calculation of Detection Probability Based on Monte Carlo Analysis

基于DFT的雷达回波数据压缩非线性算法

A Nonlinear Algorithm of Radar Echo Data Compression Based on DFT

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

由于船目标有强的角反射，它的雷达回波信号比较强，在SAR图像中的灰度值比较高。

Because of strong corner reflection , returned signals from ship are strong and ship in SAR imagery is very bright feature .

基于DDS的宽带雷达回波信号模拟技术研究

Research on the simulation of the characteristic signal of the wide band radar target based on DDS

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 .

分别对星载SAR处理的雷达回波信号、距离处理、方位处理、多视处理和多普勒参数估计几个主要部分进行了分析和讨论。

Several important parts are analysed and discussed , which include echo signal , azimuth processing , range processing multi-looks processing and Doppler parameters estimation for spaceborne SAR .

仿真图像包括雷达回波和ARPA符号。

Mimic image comprises of radar echoes and ARPA marks .

通过编写的VB程序对其进行控制，使其满足对激光雷达回波信号的采集要求，对回波信号进行采集。

The VB program by writing can control it in order to meet the requirements of laser radar echo signal acquisition which can collect the echo signal .

推导了多目标的宽带线性调频信号stretch处理的雷达回波数学模型，分析了依据一维距离像对多目标进行识别方法。

The radar-echo model for multi-target of wideband linear frequency modulated signal Stretch processing is derived , and the multi-target identification according to one-dimension range profile is analyzed .

为此，文中提出了采用小波阈值萎缩进行数据预处理的方法，以去除雷达回波噪声，并给出了基于DSP的电路和软件实现方法。

A method of data preprocess using wavelet threshold shrinkage algorithm is presented to remove GPR echo signals ' noises and the realization of the circuit based on DSP and software is given .

Polaris船舶操纵模拟器中雷达回波的生成研究

Analysis on the Generation of Radar Echo in Polaris Shiphandling Simulator

以往InSAR遥感应用研究主要集中在通过利用雷达回波信号所携带的相位信息来获取地表高程信息方面。

In the past , InSAR application was mainly focused on acquiring DEM by means of extracting phase information preserved in RADAR backscatter .

针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PCI9820高速采集卡实时采集和存储数据。

Aiming at data acquisition of radar echo signal with low SNR , IF band-pass sampling concept is proposed . High-speed acquisition card PCI_9820 is used to sample in real-time and store data .

基于雷达回波信号的PGA算法是在时域估计和校正系统相位误差的一种方法，算法较简单。

PGA algorithm based on radar echo signal is one method of estimating and correcting phase error in time domain , and its algorithm is simple to use .

在垂直速度方差和低Ri数峰值间以及动力不稳定和MST雷达回波区域间有好的对应关系。

A good correspondence between the peaks of variance in the vertical velocity and low Ri and between the regions of dynamical instability and MST radar echo is found .

最后研究了雷达回波模拟、成像处理方法和SAR图像的相干斑噪声问题，完成了典型地形背景目标的SAR图像仿真，得到较为理想的结果。

After studying the model of the SAR echoed signal and the method of imaging , the problem of speckle is discussed . Finally , the simulations of SAR images of terrain model are finished , and some satisfactory SAR images are obtained .

研究了探地雷达回波信号杂波及背景去除算法，改进了一种基于A-scan信号强度的自适应滑动平均法；

Studied the cluster and background reduction algorithm and , proposed an enhanced adaptive step average method based on the amplitude of A-scan signal ;

给出了在Lambert投影下将雷达回波的极坐标数据转换成经纬度位置，并计算网格点坐标的公式。

In order to convert the radar echo data in polar coordinate into the data in grid coordinate , the formulas for calculating geographical position in Lambert projection are given .

由于雷达回波的时变和频变特性，使得当基于FFT处理进行ISAR成像时，图像上存在许多扩展散射点和虚假响应，严重影响了图像质量，并对ISAR像的后续处理带来困难。

Due to time-varying and frequency-varying characteristics , ISAR imagery based FFT processing is seriously blurred because there are many extended scattering centers and artificial responses on the imagery , and it makes following processing more difficult .

本文利用天气形势、T213数值预报产品、卫星云图和雷达回波图等资料，对云娜台风进行了综合分析。

Based on the synoptic situation , satellite pictures , radar reflection wave , the typhoon rananim is analyzed synthetically .

研究USB设备工作原理，建立了基于USB总线的探地雷达回波信号数据传输方案，针对多路高速和低速信号设计了通信协议，充分利用了硬件设备资源。

Researching the working theory of USB equipment , it sets up the GPR feedback signal data transmitting scheme based on USB bus , designs the communication protocols for several signals composing by high speed and low speed signals , using the hardware sources as much as possible .

为获得运动目标特征，基于目标多点散射模型推导了近程伪码调相连续波（PRC-CW）雷达回波多分量信号模型。

A multi-component echo signal model of short-range pseudo random code continuous wave ( PRC-CW ) radar is presented based on target 's multi-points scattering model .

推导了成像过程中雷达回波的一阶近似模型和stop-go模型的适用条件。

The application conditions of the first order approximate model and ' stop-go ' model have been deduced in the process of imaging . 4 .

该文目的是研究一种空间目标宽带ISAR雷达回波的模拟实现方法，为空间目标探测雷达的研制及空间目标特性的研究提供信号来源。

The aim of this article is to study a method to simulate the ISAR radar echo of space objects , thus providing signal and data for the development of Space Target Detection Radar and the research of the characteristics of space targets .

根据北京地区1980&1983年夏季的5cm雷达回波和地面降水资料，作者研究了北京地区云和降水的特征。

Using the data of the 5 cm radar echo and the precipitation on the ground over the Beijing area from 1980 to 1983 , the characteristics of cloud and precipitation during the summer in Beijing are studied .