Hi,

I am using a DEMO BGT60TR13C with #MCU7 Baseboard and the Python3 ifxAvian package and am trying to understand the raw data coming from the sensor after acquiring a frame: 

from ifxAvian import Avian

with Avian.Device() as device:

config = Avian.DeviceConfig(

sample_rate_Hz=1_000_000,
rx_mask=1,
tx_mask=1,
if_gain_dB=33,
tx_power_level=31,
start_frequency_Hz=60e9,
end_frequency_Hz=61.5e9,
num_chirps_per_frame=128,
num_samples_per_chirp=64,
chirp_repetition_time_s=0.0005,
frame_repetition_time_s=0.25,
mimo_mode="off",

)
device.set_config(config)

f = device.get_next_frame()
print(f.shape)
print(f)

# (1, 128, 64)
# [[[0.45470086 0.41855922 0.4058608 ... 0.4859585 0.4893773 0.46984127]
# [0.45274726 0.41807082 0.4068376 ... 0.4869353 0.4893773 0.46984127]
# [0.45177045 0.41807082 0.4063492 ... 0.4859585 0.4888889 0.46886447]
# ...
# [0.45347986 0.41855922 0.4056166 ... 0.4888889 0.4903541 0.46837607]
# [0.45250306 0.41807082 0.4043956 ... 0.4884005 0.4908425 0.46837607]
# [0.45372406 0.41855922 0.4058608 ... 0.4884005 0.4901099 0.46788767]]]

I understand that the shape of the array is determined by (rx_antenna_count, num_chirps_per_frame, num_samples_per_chirp).
However I don't understand the individual cell values.
What do the numbers represent? Do they have a unit?

Thanks,

Jannik

Step 6 of getting started with the Distance2GoL board involves an optional firmware update. I am wondering what the purpose of this fimware update is/what (if any) additional functionality it provides? I have been trying to flash the firmware but am having difficulty debugging a J-Link installation issue, so I am wondering if I should just skip the firmware update and continue with developing. 

@Siddharth ,

Hi, 

Thanks for the last reply here https://community.infineon.com/t5/Radar-sensor/BGT60TR13C-data-to-csv-file/m-p/484400#M2822 .  By this code,  the plot should be of 1 frame and 1 antenna. My recorded signal has 128 chirps/frame and 64 samples/chirp.  so in my  .csv file, the columns are 64 and the rows are 128. I am attaching the file here. When I am trying to plot the columns, the plot looks like this: 

 But in the radar gui, the antenna plot shows like this:  

 When I am selecting single column, I can get a single plot but I want to understand how will i be able to get a single antenna plot like this? And, also this IF data is real but i am interested in retrieving the phase information and how would i do that?  I want to understand this system properly. 

Thanks Sddharth. 

Please tell me about the influence of AC fluctuation of the power supply to VCC of BGT24LTR11N16 on the oscillation frequency.
The phenomenon I observed was that when the VCC power supply fluctuated with a 13kHz sine wave at 50mVp-p centered at 3.3V, the oscillation frequency of TX output fluctuated over a width of 10MHz around the set value of 24GHz.
When the variation is small enough (<<10mVp-p), it varies within 1MHz.
(Other conditions)
・V_TUNE has ±1mVp-p variation at 1.5V input.

  The operating power supply specification is within 3.2 to 3.4V.
I have no idea the possible expected value of this phenomenon as a device behavior.
If the behavior is impossible, please let me know if there are other factors.
 Also, if there are any specifications regarding power supply ripple, please let me know.

Hello, I would like to ask for advice: I inserted the radar into the computer and ran the official demo (Python code). This radar transmits the raw data to the computer through USB, and then the computer executes the corresponding algorithm to achieve distance detection?

Hi,

I want to implement the BGT60TR13C sensor in a design, using an XMC. I was wondering if  there are any example projects for configuring the SPI registers or a more detailed user guide?  something similar to the REF_BGT60LTR11AIP_MO project for the BGT60LTR11AIP sensor. 

Thanks,

Nicole Donnelly

Hi.

Sorry for my poor English as I am not an English speaker.

I'm using XENSIV Connected Sensor Kit, BGT60TR13C Radar + DPS368 Pressure Sensor.

I want to make Range- Angle map with this module, but there is no information about angle data.

I can get range data in meters, so all I need is just the angle data.

If there is any way to get that data, please teach me how to do that.

Thank you.

Hello, everyone:

 I am conducting research on the gesture recognition of millimeter wave radar, but there are few reference codes for the radar BGT60TR13C of Infineon on the Internet.

Do you have relevant information? Or is there any recent news about relevant SDK examples

Hi, I would like to know whether it is possible to use less than 50MHz for the SPI clock speed on the DEMO BGT60TR13C.

The datasheet (BGT60TR13C E6327  Datasheet V2.4.6) states "The SPI interface can be clocked up to 50MHz" on page 26, but on page 28 of the same datasheet, it states that the minimum SPI clock period is 20ns (50MHz).

Please let me know whether the sensor can operate below 50MHz SPI speed and what the range for the SPI clock speed is.

Thank you,
Ming  

Hi everyone,

I'm currently working with a setup that involves three DEMODISTANCE2GOL radars positioned in an equilateral triangle configuration, all pointing towards the center of the triangle, with approximately 5 meters of separation between them. The setup is located indoors within a room featuring carpet flooring and relatively smooth walls, with one of the walls being a window front. Two out of the three radars are placed in the corners of the room.

However, I've been experiencing bad performance from the radars, and I'm seeking guidance on how to enhance their performance within this particular experimental setup.

Some of the challenges and questions I'm facing include:

1. **Interference and Reflections:** Given the indoor environment with smooth walls and a window, I suspect that reflections and interference might be affecting the radar performance. Could these environmental factors be contributing to the issues I'm encountering?

2. **Proximity and Angle:** Since two of the radars are situated in the corners of the room, could the proximity to the walls and the angle of their installation be causing inaccuracies or disturbances in the measurements? How can I optimize their positioning?

3. **Calibration:** Is there a specific calibration process recommended for the DEMODISTANCE2GOL radars that I should follow to ensure accurate measurements? What are the key calibration steps I should be aware of?

4. **Signal Processing and Filtering:** Are there specific signal processing techniques or filters that are advisable for this indoor setup? Could adjusting signal processing parameters potentially improve the quality of measurements?

5. **Interference Mitigation:** How can I mitigate potential interference from other devices or sources within the indoor environment, especially given the presence of electronics and possible wireless networks?

I'm eager to hear from anyone who has experience with the DEMODISTANCE2GOL radars or similar radar systems in indoor settings. Any insights, suggestions, or best practices you could share to help optimize the radar performance and data accuracy would be greatly appreciated.

Thank you in advance for your valuable input!