Disclosed is a method for compensating for a radio frequency (RF) chain imbalances in multiple-input and multiple-output (MIMO) radar, which comprises the following steps of: allowing a receiver of MIMO radar to receive a signal in an environment where a reference target and a real target are located; allowing the receiver to use the received signal to estimate a channel; allowing the receiver to filter a first channel component according to the reference target from the estimated channel; allowing the receiver to estimate an RF chain imbalance parameter from the first channel component; allowing the receiver to filter a second channel component according to the real target from the estimated channel; and allowing the receiver to use the RF chain imbalance parameter to compensate for the second channel component. According to the present invention, only the receiver is allowed to estimate the RF chain imbalances and simply correct the same without any additional circuit, unlike a conventional method.

    MIMO 레이더에서 RF 체인 불균형을 보상하는 방법은 MIMO 레이더의 수신기가 참조 타깃과 실제 타깃이 위치한 환경에서 신호를 수신하는 단계, 상기 수신기가 수신한 신호를 이용하여 채널을 추정하는 단계, 상기 수신기가 상기 추정된 채널에서 상기 참조 타깃에 의한 제1 채널 성분을 필터링하는 단계, 상기 수신기가 상기 제1 채널 성분으로부터 RF 체인 불균형 파라미터를 추정하는 단계, 상기 수신기가 상기 추정된 채널에서 상기 실제 타깃에 의한 제2 채널 성분을 필터링하는 단계 및 상기 수신기가 상기 RF 체인 불균형 파라미터를 이용하여 상기 제2 채널 성분을 보상하는 단계를 포함한다.


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    Title :

    MIMO RF COMPENSATION METHOD FOR RF CHAIN IMBALANCES IN MIMO RADAR


    Additional title:

    MIMO 레이더에서 RF 체인 불균형을 보상하는 방법


    Contributors:
    GIL GYE TAE (author) / SUH JUN SEUK (author) / HONG SONG CHEOL (author) / LEE JU YONG (author)

    Publication date :

    2022-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / H04B TRANSMISSION , Übertragung



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