Transmission of radio navigation phase correction

Details Transmission of radio navigation phase correction Transmission of radio navigation phase correction

G - Physics

01

S

343/115, 343/95

G01S 1/30 (2006.01) G01S 5/12 (2006.01)

Patent

CA 1038481

ABSTRACT A method of and apparatus for navigation in diffeRential-mode in a sequential system for radio- navigation by phase reception. In transmission an amplitude-modulated radiogoniometric carrier wave is modulated in phase or frequency, this modulation being effected by a low-frequency subcarrier signal which is itself so modulated in phase sequentially in accordance with the phase corrections that each phase correction appears approximately simultaneously with the phase concerned. At a standard radionavigation receiver, the subcarrier signal modulated by the corrections is re- covered, and the phase corrections are so applied to the received phases that each phase undergoes the phase correction received at the same instant. -1-

203817

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