초록 ▼

An interferometer type DF system uses an array of five antennas (A,B,C,D,E) arranged at the apices of a regular pentagon to define five wide apertures along the sides of the pentagon and a further five apertures along the diagonals. The phases of the signals received by each antenna, are measured mo

An interferometer type DF system uses an array of five antennas (A,B,C,D,E) arranged at the apices of a regular pentagon to define five wide apertures along the sides of the pentagon and a further five apertures along the diagonals. The phases of the signals received by each antenna, are measured modulo 2pppp

대표청구항 ▼

An interferometer-type direction finding system including at least five antennas defining a non-linear array providing 360°coverage, and such that the spacing between any pair of apertures is greater than a wavelength of the radio signal to be received, means for receiving radio energy detected by t

An interferometer-type direction finding system including at least five antennas defining a non-linear array providing 360°coverage, and such that the spacing between any pair of apertures is greater than a wavelength of the radio signal to be received, means for receiving radio energy detected by the antennas over a predetermined band, analysing means for effectively outputting the amplitude and relative phase of any radio signal received by each antenna in each of a plurality of frequency intervals within said band, means for effectively identifying from said output any received radio signal within said band, and means for processing only the relative phase at each antenna of any identified radio signal to produce only one possible value of the bearing of the source from which any said identified signal originates.