Aircraft positioning system and method based on single station
A positioning system and aircraft technology, applied to satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve problems such as complex system structure, high cost, and direction-finding errors
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[0066] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0067] The invention is based on a single-site aircraft positioning system, reference Figure 4 As shown, it includes: a phase measurement module 1, an inertial gyroscope 2, a satellite navigation and positioning system 3, a processing module 4, and a sequential circuit 5. The phase measurement module 1 includes: two receiving antennas 11, two radio frequency modules 12, two intermediate frequency modules 13 and a phase detector 14, and the components are connected in sequence.
[0068] Two receiving antennas form a short baseline. Taking 300MHz to 2GHz frequency signal positioning as an example, the short baseline can be 3.4m long.
[0069] The direction of the short baseline is perpendicular to the axis of the aircraft fuselage.
[0070] During the signal positioning process, the aircraft makes a non-straight line, such as an S-shaped...
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