Correctly define operating parameters of FMCW radar waveform

Hello there,

I downloaded the example file 'RadarCubePart2.m'. This example uses some default parameters which I would like to change, but it appears that I am unable to implement this correctly. The parameters I would like to define are (Carrier Frequency,Chirp bandwidth,Chirp duration,No pulses,ADC sample rate)

I have identified the objects in which these need to be set, however, I am unable to perform a simulation that delivers the expected results. I would appreciate it if you could provide a manual or offer some advice on correctly setting up the toolbox objects. Thank you.

[Honglei Chen]

Could you be more specific regarding what parameters you want to set on what component? I'm not sure how to derive your goal from the table above.

[Daniel Stephens]

I would like to set the Carrier Frequency (default is 3e8 Hz), Chirp bandwidth, Chirp duration, No of chirps and the ADC sample rate. In principle, all the quantities shown in the columns of the above table. Looking at the objects used in the example script, I found the dependencies for the above parameters. (e.g. Chirp bandwidth & Chirp duration are only defined in the object LinearFMWaveform)

If these are not consistently defined thru the complete signal change the extraction of range, velocity and angle will be incorrect. At present, I change the carrier frequency in all the dependent objects but the range, velocity & angle results I obtain are incorrect. Hence I would like to know if there is a manual or some reference flow for correctly setting up this simulation. If required I can also send you the m file that I have modified. Thank you.

Kind regards,

Daniel

[Honglei Chen]

Hi Daniel, it would be helpful if you could either post the code here or send me a copy. Thanks.

[Daniel Stephens]

Hello Honglei,

Thank you for your reply. I'm going to attach the code to this thread. I would appreciate it if you could help explain how I could correctly set the parameters under 'Define Settings'. Kind regards, Daniel

[Daniel Stephens]

Hello Honglei,

Would you have any suggestions for the script? Thank you,

Kind regards, Daniel