The difference is that radar depends on radio waves. These have long wavelengths and therefore bounce only off large things.
不同之处是雷达发出的是无线电波，这种波波长较长，反射体只能是大个物体。
The difference is that radar depends on radio waves.
区别在于雷达是基于无线电波。
According to laser radar echo characteristic, the difference filter and the match filter were adopted. As a result, the SNR is advanced about 1.5 times.
根据三脉冲激光雷达回波信号的特点，对信号进行差分滤波和匹配滤波处理，信噪比提高约1.5倍；
The system of Electronic Scan Multibeam Constant Difference Amplitude Comparison(ESCDAC)direction measurement is widely applied in modern radar interception receivers.
电扫描多波束恒差比幅测向体制在现代雷达截获接收机中有着广泛应用。
The monopulse secondary surveillance radar(SSR) antenna needs sum, difference and sidelobe suppression omnidirectional channels.
单脉冲二次雷达要求天线具有和、差和副瓣抑制三个通道。
It not only can implement the digital pulse compression and coherent integration for radar sum and difference signals, but also control the whole radar system.
能实现雷达和、差信号的数字脉冲压缩与动目标检测，并控制着整个雷达系统的运行。
Maxwell's equations can be discretized by finite difference time domain (FDTD) to simulate ground penetrating radar (GPR).
利用时间域有限差分(FDTD)法将麦克斯韦方程进行离散化，可以对地质雷达进行数值模拟。
Element position error, mutual coupling between elements, and the difference in frequency responses of receiver channels influence directly the performance of array radar signal processing.
阵元位置误差、阵元间互耦的影响、接收机通道的频率响应的差异都直接影响着雷达阵列信号处理的性能。
The difference between three "availability" of the sky wave radar are discussed in this paper.
讨论了天波雷达三个与时间有关的“可用度”的区别。
An actual radar antenna pattern plotted by using the method shows approximately no difference from the practically measured results based on solar noise.
用本法获得的某雷达天线方向图的结果与基于太阳噪声的实测结果基本一致。
Three satellites cluster for time-difference localization is applied to find the radar beacon position on the ground.
三星时差定位星座是用于地面雷达辐射源定位的星座。
C band real radar sea-clutter data were analyzed and the modified mean square difference test for analyzing the "tail" of clutter was constructed.
对C波段实测雷达海杂波数据进行了统计分析，并为分析杂波“拖尾”特性构造了修正的均方差检验法；
Thus, we obtained characteristics of radar images by experiments in different environment, and implemented forward modeling using two-dimension finite difference time domain method.
因此，通过不同环境的试验得到雷达图谱特征，并利用二维时域有限差分法对其进行正演模拟。
This paper emphatically introduces the self-monopulse systems realization method on LLX09 radar, the self-monopulse systems principle and how to process the signal of sum-difference unit.
本文着重介绍了假单脉冲体制在雷达上具体的实现方法，以及假单脉冲体制的原理和和差环信号的处理。
The paper presents the principle of enhancing the resolution ability for the radar with sum-difference beam and the compression result by using the lobe compression technique.
介绍在具有和差波束的雷达中采用波瓣压缩技术提高雷达分辨能力的原理，以及采用该压缩技术后的压缩效果，最后给出该技术在幅度和差单脉冲雷达中的工程实现方。
The paper presents the principle of enhancing the resolution ability for the radar with sum-difference beam and the compression result by using the lobe compression technique.
介绍在具有和差波束的雷达中采用波瓣压缩技术提高雷达分辨能力的原理，以及采用该压缩技术后的压缩效果，最后给出该技术在幅度和差单脉冲雷达中的工程实现方。
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