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- W4287510014 abstract "This article describes a new approach for the estimation of the direction or of the microwave signal reflected from the object, based on radio photonics technologies. The angle of arrival measurement device has the same structure as the classical fiber-optic communication channel and consists of a laser, a block of electro-optical modulators and a photodetector. The block of electro-optical modulators, in contrast to the known solutions based on a two-port Mach- Zehnder amplitude modulator, is based on two parallel subunits, consisting of tandem single-port amplitude and phase modulators (TAPM). A microwave signal reflected from the object with a time delay, the value of which is determined by the AOA, is sequentially received at the radio frequency inputs of two TAPMs through the receiving antennas connected to them. In this case, the initial components of the laser carrier at the output of the TAPM subunits of both channels are completely suppressed, which significantly distinguishes the proposed solution from the known ones for the better in terms of increasing the measurement accuracy. The beats of the output signals of the TAPMs at the output of the photodetector represent a signal reflected from the object, according to the power of which the AOA can be determined." @default.
- W4287510014 created "2022-07-25" @default.
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- W4287510014 date "2022-07-25" @default.
- W4287510014 modified "2023-10-16" @default.
- W4287510014 title "Radiophotonic module for angle of arrival estimation of a reflected signal for radar type problems solving" @default.
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- W4287510014 doi "https://doi.org/10.1117/12.2629381" @default.
- W4287510014 hasPublicationYear "2022" @default.
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