Special Notice: NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA) is seeking inquiries from companies interested in obtaining license rights to commercialize, manufacture, and market a more reliable Doppler Lidar for autonomous navigation. This technology, known as Navigation Doppler Lidar (NDL), was pioneered by NASA for precision navigation and executing well-controlled landings on surfaces like the moon. The NDL utilizes the Frequency Modulated Continuous Wave (FMCW) technique to determine the distance to the target and the velocity between the sensor and target. However, the current sensor cannot determine the sign (+/-) of the signal frequencies, resulting in false measurements of range and velocity. NASA has developed an operational prototype of a method and algorithm that works with the receiver to correct this problem. The technology is available for license rights on an exclusive or nonexclusive basis and may include specific fields of use. Interested parties can submit a license application through NASA's Automated Technology Licensing Application System (ATLAS). For more information and to express interest, please visit the provided links. No follow-on procurement is expected from responses to this notice.