Fixing the spectrum width of the weather echo signals, we change theirs mean Doppler frequency and filter them using regression filter. After filtering, we analyze the attenuation of them.
在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率，分析了回归滤波器对它的衰减情况。
The analysis of the virtual echo such as three -body scatter spike echo, the secondary echo, the side -lobe echo is given echo based on observational re cords of severe convectional weather in 2003.
根据2003年几次强对流天气的观测资料，对其中三体散射长钉、二次回波旁瓣回波等虚假回波进行了分析。
Tests indicate that this scheme is one of the effective ways to solve the problems of storage and long-distance transmission of weather radar echo images.
试验表明，该方案是解决天气雷达回波图像存储和远程传输的一种有效途径，并在气象业务工作中发挥了重要作用。
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。
X band bistatic Doppler weather radar is a new kind of weather detection radar system. It can detect three dimensional wind vector fields from the echo of rain.
波段双基站多普勒天气雷达系统是一种新型气象探测雷达系统，主要用于测量降雨回波的三维风场。
A new moment invariant method was presented to evaluate the flow field within weather radar echo.
介绍一种用矩不变量跟踪天气雷达回波，以估测回波区域内部流场的方法。
By using the 714c radar echo data in Shiyan and other weather data, a severe convective weather event in Shiyan on 6, July 2004 is analyzed.
利用十堰714c天气雷达回波资料，结合其它天气资料，分析了2004年7月6日发生在十堰境内的强对流天气过程。
For improving the level of weather forecast, a new method that weather radar echo boundaries can be recognized and tracked by Gaussian descriptors is proposed.
为了提高气象预报业务水平，特别是强对流天气的临近预报能力，提出利用高斯描绘子来进行识别和跟踪天气雷达的回波轮廓。
The result shows that the hail and severe wind weather process was mainly caused by mesoscale cyclone in supercell storm echo.
结果表明：这次冰雹大风天气过程主要是由超级单体回波中的中尺度气旋引起的；
Firstly, we introduce the radar equation of weather radar, the basic principles of detection weather targets, the time and frequency domain properties of weather radar echo and its simulation methods.
首先简要介绍了气象雷达的雷达方程、气象雷达探测气象目标的基本原理、气象目标回波的时域频域特性和气象回波信号的模拟方法。
Firstly, we introduce the radar equation of weather radar, the basic principles of detection weather targets, the time and frequency domain properties of weather radar echo and its simulation methods.
首先简要介绍了气象雷达的雷达方程、气象雷达探测气象目标的基本原理、气象目标回波的时域频域特性和气象回波信号的模拟方法。
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