about the relationship between radar signal strength and distance.
Our experimental scenario is like this, we fix the radar at a definite location, we place an object at a distance d from the radar, and then we receive the signal data reflected back from this object and do range-FFT on the data, and then extract the peak H corresponding to the highest peak in the image, which constitutes a data point (d, H) with the position d of the object, and under that condition , we keep moving the position of the object to form multiple data points. Eventually, we plot all the data points in a graph and connect them. The points were found to form an image with a periodicity shaped like a sine function. Based on this finding, we argue that the signal strength of the signals emitted by the radar has a strong relationship with the position d. Even when moving the object in 1 mm intervals, there is a large variation in H corresponding to two neighboring positions. Therefore, our question is whether the relationship between the signal strength and the position of the signals emitted by the radar is a problem of the radar itself, a property of the antenna used by the radar, or something else?
These are our queries, thank you.
