Negative range in range-doppler plot for FMCW radar

5 次查看（过去 30 天）
ali
ali 2021-2-14
回答： ali 2021-6-22
Hi,
I am doing post processing on ADC data from FMCW radar kit..I am using phased.RangeDopplerResponse and plotResponse for getting range-doppler map. I am wondering why is the plot showing negative ranges?The total range is 30 meters(with the set chirp parameters) but plot is showing from -15 to 15 instead of from 0 to 30 m?When i tried to change the range axis limits, i am getting plot like shown in figure?Can someone explain to me why it is happening and how i can display the returns for complete range (0-30 meters)?
Thanks

请先登录，再回答此问题。

回答（3 个）

randerss simil
randerss simil 2021-2-14
%if true
[X Y] = meshgrid(-10:10,0:30)
Use the range in meshgrid while generating contour plot like above. Changing axis limits will only shift the plot to the limits specified.
  1 个评论
ali
ali 2021-2-14
Thanks but Axis scaling is being done automatically by phased.RangeDopplerResponse and plotResponse functions.

请先登录，再进行评论。

ali
ali 2021-6-16
Can someone kindly guide on thsi issue?@MathWorks Support Team
ali
ali 2021-6-22
I found the answer myself..Set the 'ReferenceRangeCentered' property to zero in phased.RangeDopplerResponse.

类别

在 Help Center 和 File Exchange 中查找有关 Automotive Radar 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by