Person location determination using multipath

A non-transitory computer readable medium having stored thereon instructions to cause to a computer to execute a method, the method comprising:

• receiving backscattered training radiofrequency data, including multipath, for at least one location within an indoor space;
• converting the received training data into a point cloud for each location of the at least one location;
• assigning a signature for each location based on the point cloud for each location;
• receiving additional radiofrequency data, including multipath;
• converting the additional radiofrequency data into an additional point cloud;
• and
• determining a location of a user by comparing the additional point cloud to the assigned signatures.

A system, comprising:

• at least one processor;
• at least one antenna configured to emit a radiofrequency signal into an indoor space;
• a non-transitory memory storing instructions that cause one or more processors of the at least one processor to execute a method comprising:
• receiving backscattered training radiofrequency data, including multipath, for at least one location within the indoor space;
• converting the received training data into a point cloud for each location of the at least one location;
• assigning a signature for each location based on the point cloud for each location;
• receiving additional radiofrequency data, including multipath;
• converting the additional radiofrequency data into an additional point cloud;
• and
• determining a location of a user by comparing the additional point cloud to the assigned signatures.