초록 ▼

An aircraft detection system which detects and tracks aircraft using: arrays of seismic and acoustic sensors, a set of junction circuits, a set of subarray circuits, several slave computers, and a master computer. Each junction circuit relays detected signals from several adjacent sensors to a subar

An aircraft detection system which detects and tracks aircraft using: arrays of seismic and acoustic sensors, a set of junction circuits, a set of subarray circuits, several slave computers, and a master computer. Each junction circuit relays detected signals from several adjacent sensors to a subarray circuit and command signals to each of the sensors to adjust the gain of their output signals. Each subarray circuit receives and unites the outputs of several adjacent junction circuits into a subarray which has a particular geographical location in the array of sensors. Each slave computer forwards detected signals from single subarray circuit to the master computer, and relays command signals back to each individual sensor. Each subarray is able to track the seismic or acoustic signature of an aircraft as it travels across the regular distribution of sensors. Each subarray is thereby able to define an azimuth to the target aircraft. Collectively the information from several subarrays yields several azimuths from which the position of the aircraft may be located by triangulation of the azimuths.

대표청구항 ▼

A detection system for detecting aircraft comprising: an array of sensors which senses seismic and acoustic signals generated by said aircraft, said array outputting therefrom detection signals, wherein said array includes a plurality of subarrays of seismic and acoustic sensors which are in a regul

A detection system for detecting aircraft comprising: an array of sensors which senses seismic and acoustic signals generated by said aircraft, said array outputting therefrom detection signals, wherein said array includes a plurality of subarrays of seismic and acoustic sensors which are in a regular distribution over a geographic area of terrain; a plurality of junction circuits, each of which is electrically connected to sensors which are adjacent to each other in said regular distribution, said junction circuits receiving and amplifying said detection signals to output amplified detection signals; a plurality of subarray circuits, each of which is electrically connected to some of the junction circuits whose sensors are adjacent to each other in said regular distribution and collecting and relaying said amplified detection signals produced by said junction circuits, said subarray circuits thereby uniting adjacent sensors into a distinct subarray associated with a particular geographic location within said geographic area; a plurality of slave computers, each of which receives and forwards said amplified detection signals from one of the plurality of subarray circuits, and each relaying command signals back through the subarray circuits and junction boxes to its sensors in its distinct subarray, said control signals adjusting amounts of gain applied to detected signals; and a master computer which receives said amplified detection signals from each of said plurality of slave computers, said master computer thereby forming an array by observing all outputs of each of the distinct subarrays to detect and track said aircraft therefrom by monitoring the detected signals received by all of the seismic and acoustic sensors, said master computer further observing a progression of the detected signals as seismic and acoustic signatures of aircraft strike sensors in the array and progress through the regular distribution over the geographic area of the terrain, said master computer thereby determining a direction from which said seismic and acoustic signals are produced with respect to said array to track said aircraft.