SIGNAL DETECTION DEVICE, SIGNAL DETECTION METHOD, AND PROGRAM

WIPO Patent Application WO/2022/038739

A1

This signal detection device is provided with: a signal detection unit that derives an estimation vector of a transmission signal vector; a first conversion unit that converts the estimation vector of the transmission signal vector to an estimation vector of a transmission signal vector based on a reduced base; a first determination unit that converts the estimation vector of the transmission signal vector based on the reduced base to a determination value vector of the transmission signal vector; a first update unit that updates a separation matrix; a second conversion unit that converts a first error signal vector to a second error signal vector based on the reduced base; a second update unit that updates an error covariance matrix based on the reduced base; a second determination unit that determines whether or not a predetermined condition has been established; and a third update unit that, when it is determined that the predetermined condition has been established, updates a unimodular matrix, an inverse matrix of the unimodular matrix, and the error covariance matrix based on the reduced base.

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SHIBAHARA KOKI (JP)
MIZUNO TAKAYUKI (JP)
MIYAMOTO YUTAKA (JP)

PCT/JP2020/031435

February 24, 2022

August 20, 2020

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NIPPON TELEGRAPH & TELEPHONE (JP)

H04B7/0413; H04B10/60; H04B10/2581; H04J14/04

JP2008048219A	2008-02-28
US20120236968A1	2012-09-20
US20180287675A1	2018-10-04

SHIGA INTERNATIONAL PATENT OFFICE (JP)

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