Ils signal analysis device and method

Details Ils signal analysis device and method Ils signal analysis device and method

G - Physics

01

S

G01S 1/08 (2006.01) G01S 1/02 (2006.01) G01S 1/14 (2006.01)

Patent

CA 2104658

ABSTRACT OF THE DISCLOSURE The invention relates to an instrument landing system (ILS) signal analysis device including an analog/ digital converter receiving the composite signal to be analysed and delivering a succession of values which can be processed in digital form, the signal to be analysed being furthermore applied to phase-locking means (2, 3) which deliver for the said analog/digital converter (10) a sampling signal of frequency greater than the largest frequency of the components of the signal to be analysed, the digital processing of the values from the converter (10), carried out in real time between two sampling instants, allowing determination of the parameters for modulation of the ILS signal. The phase-lock loop is synchronized with the frequency of the signal to be analysed, which frequency is extracted from a sub-harmonic of the 90 Hz and 150 Hz components constituting this signal.

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