Systems and methods for measurement integration and accurate digital twin creation

A method comprising:

• positioning a first antenna at a first location of a first section inside a building;
• positioning a second antenna at a second location of the first section inside the building, wherein the first antenna is coupled in series to the second antenna to form a first antenna branch, a first end of the first antenna branch is coupled to the first antenna, and a second end of the first antenna branch is coupled to the second antenna;
• positioning a third antenna at a third location of a second section inside a building;
• positioning a fourth antenna at a fourth location of the second section inside the building, wherein the third antenna is coupled in series to the fourth antenna to form a second antenna branch, a first end of the second antenna branch is coupled to the third antenna, and a second end of the second antenna branch is coupled to the fourth antenna;
• coupling a first input of a channel controller to the first end of the first antenna branch;
• coupling a second input of a channel controller to the second end of the second antenna branch, wherein the channel controller comprises a first configurable delay between the first input to one or more outputs of the channel controller, a second configurable delay between the second input to the one or more outputs, and the first configurable delay is selected to be different from the second configurable delay, and
• the channel controller produces a test signal outside a communication band to monitor any changes in a cable length, and the channel controller compares a received value with stored baseline values of cable lengths to trigger an alarm when these values are changed for connected signal paths;
• receiving the one or more outputs of the channel controller at a receiver circuit, wherein the one or more outputs comprise a signal from the first antenna branch including the first configurable delay and a signal from the second antenna branch including the second configurable delay;
• providing an expected system response for a combination of the first, second, third, and fourth antennas;
• for the expected system response, generating a limit function for the expected system response;
• receiving an actual system response of the combination of the first, second, third, and fourth antennas;
• and
• comparing the actual system response to the expected system response and identifying the actual system response of the first, second, third, or fourth antenna differ from the generated limit function by more than a threshold value.