The stability and flexibility of microwave and millimeterwave signals for coherent radars, generated via photonics techniques from mode locked lasers, are discussed. Recently proposed photonics architectures for radar pulse compression and frequency agility are reviewed.
Bogoni, A., Ghelfi, P., Serafino, G., Laghezza, F., & Scotti, F. (2012). Photonics techniques for the flexible generation of ultra-stable microwave and millimeterwave radar signals. In International Photonics and Optoelectronics Meetings (pp. IF5A.1). Optical Society of America (OSA). https://doi.org/10.1364/IONT.2012.IF5A.1