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2 139 551

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IPC

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Application

98122811/09, 1998-12-16

(24)

Start date

1998-12-16

(22)

Actual filing date

1998-12-16

(45)

Published

1999-10-10

(72)

Inventor

Efremov N.V.Osetrov P.A.Sirenko V.G.Smaglij A.M.Sadovnikova A.I.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Tsentr"

MICROWAVE RECEIVER OF SIGNALS OF SATELLITE RADIO-NAVIGATION SYSTEMS Russian patent published in 1999 - IPC

Abstract RU 2139551 C1

FIELD: satellite radio navigation, applicable in channels of primary information processing of receiver-indicators of satellite radio- navigation systems. SUBSTANCE: microwave receiver comprises the first mixer, second mixer, frequency synthesizer, frequency divider, first IF amplifier, second IF amplifier, first automatic gain control unit, first analog-to-digital convertor and, in addition, it has an antenna system comprising an antenna, first and second band-pass filters and a noiseless amplifier, third and fourth band-pass filters, third, fourth and fifth IF amplifiers, third and fourth mixers, first, second and third low-pass filters, phase shifter, second automatic gain control unit, second and third analog-to-digital convertors. Provision is made for reception and processing of signals from space vehicles of the system, type "GLONASS", and system, type "NAVSTAR", enhanced accuracy of measurements due to employment of the prototype of low-pass filter with a shear band of 18 MHz (which corresponds to the spectrum width of P-code signal) instead of the band-pass IF filter of the system, type "NAVSTAR". EFFECT: enhanced efficiency. 1 dwg

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RU 2 139 551 C1

Authors

Efremov N.V.

Osetrov P.A.

Sirenko V.G.

Smaglij A.M.

Sadovnikova A.I.

Dates

1999-10-10—Published

1998-12-16—Filed

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