Radar sensor Forum Discussions
Following the said launch, please be informed that these XENSIV™ Radar 24GHz demo kits are therefore discontinued: Sense2Go, Sense2GoL, Distance2Go and Position2Go.
We are transferring our support capabilities towards the new kits. For the discontinued kits, we will reduce and eventually stop our support including telephone, chat, community support forum, or e-mail inquiries. We apologize for any inconvenience caused.
Please find all needed information on all our 24GHz radar products and kits on www.infineon.com/24ghz.
Your Infineon team
Using the function provided, I can get the 256 points IQ signal just like the time domain plot in infineon toolbox software.
But I would like to know what is the period/time duration that the 256 samples represent, since the x-axis of the plot is samples instead of time.
Where can I find it? Thanks. Show Less
Need some clarification on the ramp period.
Existing D2G firmware is pre-configured with 200 us ramp down period (for 'up-chirp only' mode) - #define RAMP_DOWM_TIME_usec (200U) .
The *.tdd file is the result from mixed between received signal and reference.
Basically the signal tx and rx comprises:
up-ramp (user defined) + down-ramp (pre-config) + waiting time between chirps (pre-config) = 1 single chirp.
Q1 - In real, it transmit and receive an almost triangle chirp, right?
Q2 - The *.tdd is result by mixing this two signals in time domain inclusive the down-ramp part?
(If yes, i can use my current code to process a triangle chirp)
Need your clarification as I am post-processing the 'tdd' file via matlab to combine multiple signals (from multiple D2G) to create a MIMO.
Many thanks! 🙂 Show Less
The reported minimum frame time interval is 1.426 ms. The frame interval is set to match the minimum.
When I capture the frame data using the ComLib C Interface on my computer, I save timestamps with every received frame.
My timestamps are showing 2.5 to 3.5 ms gaps between frames.
I assume the reason this time doesn't match the frame time because my program has some overhead for writing data to file, but what does that mean for the Position2Go?
Am I skipping frames because I can't request as fast as the frame interval? Am I receiving frames that could potentially be several milliseconds old?
How exactly does the Position2Go to ComLib interface data buffer work? Show Less
I am trying to configure the board Distance2Go, by using the InfineonToolbox, for working as an FMCW radar, without positive results. I mean obtaining a modulated signal that actually is continuous.
I understand that it is possible to increase the number of chirps per frame but the overall duration of all chirps is always less than the frame period. Moreover, there is a too long minimum time between consecutive frames.
My purpose is to obtain a series of chirps without pauses between each one.
Thanks in advance Show Less
I am working with the Infineon Distance2Go 24 GHz radar demo kit for ranging, movement and presence detection (with a XMC 4200 microcontroller and BGT24MTR11 for radar purposes). The board and the Radar GUI (as a part of the Infineon Toolbox) are working fine, but I'd like to gather live data from the baord with MATLAB.
In the application note AN543 is said 'A Matlab Interface plugin is also available to extract the raw IF data from the radar module via the USB interface to the PC/laptop for further signal processing'.
Where can I find/download/install that plugin? Using the MATLAB search for additional toolboxes there is only the XMC Library for Embedded Coder (by Infineon) but this does not seem to be the right software.
Has someone else already tried to use this board in connection with MATLAB and can help me?
Thank you in advance! Show Less
I want to built a custom UI for the demo board POSITION2GO. The interface will be like a military radar. I want to fetch the demo board output from serial port and plot those in my custom Radar user interface.
Can anybody please help me how to decode the serial output of the position2go board to get the angle and distance of the object.
Regards Show Less
I'm have Distance2go kit and i'm using Matlab interface.
I'm using this function to get data from the microcontroller:
From which array the data is retrieved?
Meni Show Less
I am studying methods to measure people's heart rate. It is mentioned in the document that duty cycle is set to 16%. Can anyone explain it? and is it related to hardware? The Radar GUI have 2 options: enable or disable. Can anyone give me suggestions about this (customize the duty cycle in firmware?)
Pic 1: Requirement
Pic 2: Radar GUI options
I'm very new to D2G. Can anyone help/guide me on
(1) to change FMCW chirp direction - currently 'up chirp only'. I would like to test on triangular chirp - 'up/down chirp (first up)'
(2) to change the min RF frequency - so that it will not start at 24.025 GHz (eg. 24.08 GHz).
Current firmware .hex only allows 'up chirp' direction & min RF frequency already preset.
Many thanks. Show Less
I am working with the EVAL BGT24LTR11 BOARD. It works fine in Doppler mode but I am noticing some problems when configured to FMCW mode.
I applied a sawtooth signal at the Vtune pin with a period of 1 ms and an amplitude from 1.3 V to 1.7 V in order to have 200-250 MHz of bandwidth. I have made different tests both connecting antennas to the TX and RX pins or connecting together the TX and RX pins by means of a cable and an attenuator in order to exclude possible problems caused by the antennas.
At IF, using I see different peaks with a spacing of 1 KHz. I am getting a bit confused because I worked in a similar way with the BGTMTR11 chip but I had not the same issues.
The peaks in my opinion are due to some crosstalk from the sawtooth signal but anyway I don't know how to solve.
Someone succesfully used this evaluation board in FMCW mode?
Thanks in advance Show Less