Stanford EE259 I Lidar principle of operation, laser physics I 2023 I Lecture 15

In this YouTube video, the presenter discusses the basics of radar, specifically focusing on MIMO radar. They explain the concept of the virtual antenna array and how it enables the determination of the direction of arrival of targets. The video also covers the signal model for MIMO radar, which involves the use of virtual antennas. The presenter emphasizes the importance of understanding the geometry of the antenna array and how it affects the performance of the direction of arrival estimation. They discuss the uniform linear array as a common choice for MIMO radar and explain the DSP pipeline for MIMO FMCW radar. The video then moves on to discuss the resolution and maximum field of view of MIMO radar. They explain the non-uniform resolution across the field of view and the factors that impact the field of view. They also mention techniques such as time division multiplexing for orthogonalizing the signals transmitted by different transmitters in MIMO radar. The presenter highlights some challenges in MIMO radar, such as multi-path effects, mutual interference, and spillover. Finally, they conclude the video by emphasizing the potential for improvement in radar technology and discussing the development of modern lidar systems.