首页>
外国专利>
METHOD FOR ESTIMATING MOVING SPEED OF TERMINAL USING DOPPLER SPECTRUM
METHOD FOR ESTIMATING MOVING SPEED OF TERMINAL USING DOPPLER SPECTRUM
展开▼
机译:用多普勒谱估计终端移动速度的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide a moving speed estimation method that detects and eliminates Doppler spectrum components due to a peripheral moving scattering body.;SOLUTION: A moving speed estimation method includes: a step of receiving a reference signal; a step of creating propagation path time fluctuation data from the reference signal; a step of performing FFT on the propagation path time fluctuation data; a step of calculating a Doppler spectrum from output of FFT; a step of setting a threshold and selecting valid components equal to or higher than the threshold; a step of detecting a first frequency of a component with the highest frequency and a second frequency of a component with the lowest frequency; a step of determining the maximum Doppler frequency from the first frequency and the second frequency; a step of determining a moving speed of a terminal; a step of storing the moving speed of the terminal; a step of comparing a plurality of moving speeds from the present time to a predetermined time therebefore so as to calculate the minimum moving speed; and a step of determining the calculated minimum moving speed as a moving speed at the present time.;SELECTED DRAWING: Figure 10;COPYRIGHT: (C)2018,JPO&INPIT
展开▼