多普勒雷达(Doppler radar)是什么? 多普勒雷达,又名脉冲多普勒雷达,是一种利用多普勒效应来探测运动目标的位置和相对运动速度的雷达。1842年,奥地利物理学家J·C·多普勒发现,当波源和观测者有相对运动时,观测者接受到的波的频率和波源发来的频率不同,这种现象被称为多普勒效应。波源和观测者相互接近时,接受到的频率...
Radar - Reflection, Resolution, Range: The performance of a radar system can be judged by the following: (1) the maximum range at which it can see a target of a specified size, (2) the accuracy of its measurement of target location in range and angle, (3
Rebecca Beitsch, The Hill, 18 Feb. 2025 Neither Doppler radar nor pesky statistics seem to dent interest in Phil's weather predictions. Bill Chappell, NPR, 31 Jan. 2025 See All Example Sentences for Doppler radar Word History First Known Use 1954, in the meaning defined above Time Travele...
inverse synthetic aperture radar (ISAR) waveformsmatlab source codesquadradure detection (QD)range - Doppler ISAR imagingstepped frequency continuous wave (SFCW) pulseJohn Wiley & Sons, LtdInverse Synthetic Aperture Radar Imaging with MATLAB Algorithms...
Metric— Radar equation solution and constraint toolstrip section Metrics and Requirements— Radar design constraints tabVisualization SNR vs Range— Available signal-to-noise ratio visualization plot tab Scenario Geometry— Geometric and environmental visualization plot tab Analysis— Range/Doppler, detectabili...
You can also export the design as a MATLAB® script for further analysis. Introduction The radar range equation is a powerful tool that ties together the main parameters of a radar system. It can give a radar engineer a good idea about performance of the system without resorting to complex...
Radar Range refers to the distance at which a radar system can detect and track objects by transmitting and receiving electromagnetic signals, as described by the radar range equation in the context of radar principles. AI generated definition based on: Synthetic Aperture Radar Imaging Mechanism for...
Range and angle determining Doppler radarA range, angle, and Doppler (velocity) measuring radar in which a CW, PRC radar floodlights a volume of interest. A receiving antenna in the form of a linear array generally broadside with respect to the bisector of the volume of interest is ...
Radar range equation Detection of objects using radar involves sophisticated signal processing. For a single pulse the following signal to noise ratio is: Observe that the received power drops with the fourth power of the range, so radar systems must cope with very large dynamic ranges in the re...
前面说过,车用雷达测角需要两个以上的RX天线,单发单收是无法实现角度估计的。其原理是:物体与两个天线的距离差 \Delta R 会导致FFT峰值的相位变化。 两个天线 相位差为: \Delta \phi=\frac{2 \pi \Delta R}{\lambda} (15) 平面波假设 在接收平面波假设前提下,可得 \Delta R=l \cdot sin \theta (...