## 📄️ Introduction

Definitions

## 📄️ The importance of position and attitude

System topology

## 📄️ The importance of time

Sampling rates

## 📄️ Instantaneous field of influence

Definition

## 📄️ Coordinate reference frame

The transducer coordinate reference frame is used to define the coordinate frame of the transducer’s IFOI. The transducer coordinate reference frame should be defined relative to an easily identified physical point on the transducer, such as the lower left hand corner or the center of mass. The transducer coordinate reference frame may even be outside the physical form of the transducer itself. The transducer coordinate reference frame is itself located at any point most convenient for defining the transducer’s IFOI.

## 📄️ Time model

The time model gives the relative time of each data element. These times are created by a sensor calibration process. The times within the data are measured in time ticks. Depending on the timing resolution desired, the number of time ticks can be increased or decreased during the calibration process. There should be at least an order of magnitude more ticks than samples in a particular dimension to enable the ticks to describe any aberrations or non-linearity in the timing.

## 📄️ Ambiguity space

We calculate the origin of the sensor energy by determining the intersection between the sensor data instantaneous field of influence (IFOI) with one or more ambiguity spaces. The space of the origin of the phenomenon is equal to the intersection of the shape space of the ambiguity intersected with the shape space of the instantaneous field of influence.