what is helperRangeDoppler ?

i'm learning about CFAR example

https://kr.mathworks.com/help/phased/ug/constant-false-alarm-rate-cfar-detection.html

but i can't implemented last code 'imagesc' function because i don't know [resp,rngGrid,dopGrid] = helperRangeDoppler;

what is helperRangeDoppler ?

and i want to figure out last code range Doppler CFAR Detections code

Answer 1

[Cris LaPierre]

In the top right of the page, click the Copy Command button. Then run that command in your command window.

openExample('phased/CFARDetectionExample')

This will load the example in your local copy of MATLAB, and change your current folder to the example folder. There you will find the helper functions for this example.