位相周波数検出装置 - Mitsubishi Electric Corporation

Title:

位相周波数検出装置

Document Type and Number:

Japanese Patent JP6410919

Kind Code:

B2

Abstract:

Filter circuitry is constituted by transversal filters which are connected in parallel to each other. The transversal filters change amplitude and a phase of an input digital signal X in [n·T s ] and output different digital signals X 1 [n·T s ], X 2 [n·T s ], and X 3 [n·T s ] as respective resulting digital signals whose amplitude and phase have been changed. A phase frequency computer computes a phase ¸ X [n·T s ] and a frequency f X [n·T s ] of the input digital signal X in [n·T s ] by performing phase computation and frequency computation using the digital signals X 1 [n·T s ], X 2 [n·T s ], and X 3 [n·T s ] output by the transversal filters.

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Inventors:

Kenichi Tajima
Higuchi Kazuhide
Hinoemata Mamoru
Takuya Suzuki

Application Number:

JP2017503274A

Publication Date:

October 24, 2018

Filing Date:

March 04, 2015

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