초록 ▼

A test facility where geographic location, orientation, elevation, distance, attitude and altitude are known for every point provides a user with a way to test the accuracy and sensitivity of navigation or positioning equipment. The facility is formed by elevating a test track on a series of piers.

A test facility where geographic location, orientation, elevation, distance, attitude and altitude are known for every point provides a user with a way to test the accuracy and sensitivity of navigation or positioning equipment. The facility is formed by elevating a test track on a series of piers. The test track may curve, tilt, or spiral under itself. Further, the test track may proceed in known directions to allow easy verification of test vehicle parameters. In operation, a test vehicle moves around the test facility. On board the test vehicle, navigation or positioning equipment measures the parameters of the test vehicle. These measured parameters are then compared with known parameters. This allows a user to test the claimed accuracy or sensitivity of the equipment used.

대표청구항 ▼

A test facility where geographic location, orientation, elevation, distance, attitude and altitude are known for every point provides a user with a way to test the accuracy and sensitivity of navigation or positioning equipment. The facility is formed by elevating a test track on a series of piers.

A test facility where geographic location, orientation, elevation, distance, attitude and altitude are known for every point provides a user with a way to test the accuracy and sensitivity of navigation or positioning equipment. The facility is formed by elevating a test track on a series of piers. The test track may curve, tilt, or spiral under itself. Further, the test track may proceed in known directions to allow easy verification of test vehicle parameters. In operation, a test vehicle moves around the test facility. On board the test vehicle, navigation or positioning equipment measures the parameters of the test vehicle. These measured parameters are then compared with known parameters. This allows a user to test the claimed accuracy or sensitivity of the equipment used. 1. A control system for a failure mode testing system having a determinable system response, wherein the testing system includes a plurality of actuator cylinders, each cylinder operating at an initial pressure and an initial frequency, wherein the frequency of each of the cylinders is different, comprising: a) selecting a desired energy level of the system response; b) selecting a desired slope of the fast Fourier transform of the system response; c) changing an operational parameter of the cylinders by a pre-selected amount in order to create a first pressure/frequency condition, wherein the operational parameter is selected from the group consisting of pressure, frequency, and combinations thereof; d) determining the system response in terms of energy and slope of the fast Fourier transform of the system response under the first pressure/frequency condition; e) storing the system response determination of the first pressure/frequency condition in a data storage medium; f) changing an operational parameter of the cylinders by a pre-selected amount in order to create a second pressure/frequency condition different from the first pressure/frequency condition; g) determining the system response in terms of energy and slope of the fast Fourier transform of the system response under the second pressure/frequency condition; h) storing the system response determination of the second pressure/frequency condition in a data storage medium; i) changing an operational parameter of the cylinders by a pre-selected amount in order to create a third pressure/frequency condition different from the first and second pressure/frequency conditions; j) determining the system response in terms of energy and slope of the fast Fourier transform of the system response under the third pressure/frequency condition; k) storing the system response determination of the third pressure/frequency condition in a data storage medium; l) changing an operational parameter of the cylinders by a pre-selected amount in order to create a fourth pressure/frequency condition different from the first, second, and third pressure/frequency conditions; m) determining the system response in terms of energy and slope of the fast Fourier transform of the system response under the fourth pressure/frequency condition; and n) storing the system response determination of the fourth pressure/frequency condition in a data storage medium. 2. The control system in accordance with claim 1, further comprising: o) determining whether the desired energy level of the system response falls within the range defined by the measured energy level of any of the pressure/frequency conditions according to the formula: ELL