Navigation techniques for autonomous and semi-autonomous vehicles

A navigation system comprising:

• a radar transceiver configured to transmit signals to and receive return signals from radar-reflective markers disposed in a navigable environment;
• a LiDAR transceiver configured to transmit signals to and receive return signals from light-reflective markers disposed in a navigable environment;
• a memory;
• a processor coupled to the memory, the radar-transceiver, and the LiDAR transceiver, the processor configured to
• determine a first localization solution associated with a location of the vehicle in a navigable environment using a radar transceiver of the navigation system;
• determine a second localization solution associated with the location of the vehicle in the navigable environment using a LiDAR transceiver, a camera, or both of the navigation system;
• select a localization solution from the first and second localization solutions based on whether an accuracy of the first localization exceeds an accuracy of the second localization solution;
• and
• perform one or more actions based on the selected localization solution.

A navigation system comprising:

• means for determining a first localization solution associated with a location of the vehicle in a navigable environment using a radar transceiver of the navigation system;
• means for determining a second localization solution associated with the location of the vehicle in the navigable environment using a LiDAR transceiver, a camera, or both of the navigation system;
• means for selecting a localization solution from the first and second localization solutions based on whether an accuracy of the first localization exceeds an accuracy of the second localization solution;
• and
• means for performing one or more actions based on the selected localization solution.

A non-transitory, computer-readable medium, having stored thereon computer-readable instructions for operating a navigation system, comprising instructions configured to cause the navigation system to:

• determine a first localization solution associated with a location of a vehicle in a navigable environment using a radar transceiver of the navigation system;
• determine a second localization solution associated with the location of the vehicle in the navigable environment using a LiDAR transceiver, a camera, or both of the navigation system;
• select a localization solution from the first and second localization solutions based on whether an accuracy of the first localization exceeds an accuracy of the second localization solution;
• and
• performing one or more actions based on the selected localization solution.

A navigation system comprising:

• a radar transceiver configured to transmit signals to and receive return signals from radar-reflective markers disposed in a navigable environment;
• a LiDAR transceiver configured to transmit signals to and receive return signals from light-reflective markers disposed in a navigable environment;
• a memory;
• a processor coupled to the memory, the radar-transceiver, and the LiDAR transceiver, the processor configured to
• generate navigational data for the navigable environment, the navigational data comprising locations of radar-reflective markers disposed throughout the navigable environment, wherein the processor is further configured to determine the locations of the radar-reflective markers using light-reflective markers disposed throughout the navigable environment.