Local Carrier-Based Precision Approach and Landing System (LC-PALS) Navy STTR FY2014.A Sol No.: Navy STTR FY2014.A Topic No.: N14A-T009 Topic Title: Local Carrier-Based Precision Approach and Landing System (LC-PALS) Proposal No.: N14A-009-0148 Firm: Toyon Research Corp. 6800 Cortona Drive Goleta, California 93117-3021 Contact: Kenan Ezal Phone: (805) 968-6787 Web Site: www.toyon.com Abstract: Toyon Research Corporation, together with the University of California, Santa Barbara (UCSB), propose to develop a Local Carrier-based Precision Approach and Landing System (LC-PALS) that provides a full navigation solution (3-D position and altitude) for platforms within range of an aircraft carrier equipped with at least one beacon. Preliminary analysis indicates that the system will achieve 10-cm z-axis (altitude) accuracy, thereby enabling autonomous carrier landing capability under GPS-denied conditions. Moreover, the system has a low probability of detection and intercept (LPD/LPI), significant built-in anti-jam, anti-spoof, and multipath-mitigation capabilities, and is not prone to integer ambiguity and the cycle-slip phenomenon that is common with GPS-based carrier-phase tracking systems. Furthermore, because the system makes use of the same hardware that is required for GPS processing, the LC-PALS receiver can be fully integrated with GPS, thereby minimizing redundant hardware and enabling simultaneous operation with GPS, when available. While an inertial measurement unit (IMU) is not required for precision approach and landing, an onboard IMU can be used as an additional and complementary measurement source for improved attitude performance. During the Phase I program the LC-PALS feasibility will be fully verified and a hardware design will be completed in preparation for a Phase II demonstration. Benefits: The Local Carrier-based Precision Approach and Landing System (LC-PALS) system developed under this program enables accurate navigation even when GPS is denied and augments GPS when available. The low-cost system is easily deployable and the LC-PALS receiver can serve as a GPS receiver when it is available. The technology is applicable to virtually any military or civilian platform that requires local precision navigation capabilities. Moreover, the system is complementary to the Joint Precision Approach and Landing System (JPALS) and can be used with or without JPALS for autonomous landing by military and civilian aircraft on land-based or sea-based landing strips. Minimizing the navigation system reliance on GPS improves the robustness of the position, velocity, attitude and time (PVAT) solution and enables a greater variety of mission profiles. Furthermore, the system is inherently robust against jamming, spoofing, repeaters, and multipath. Return