/*! @brief Pointer to Radar Cube memory in L3 RAM */
cmplx16ReIm_t *radarCube;
1. In the water_ground demo, it uses radarCube to get the real part and the imagine part information to calculate rcs. What's the meaning of the real and imagine part?
2. I found the fact that radarCude was used many times in pplcount demo, where should I fetch data to calculate rcs_value of each point in the point cloud?