METHOD AND APPARATUS OF ADAPTIVE BEAMFORMING

• Main Authors: KIM, JEONG SEOK, KIM, KWANG JU, LEE, JUNG GUN
• Format: Patent
• Language: English; Korean
• Published: 03.03.2016
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The present invention relates to an adaptive reception beam focusing method and an adaptive reception beam focusing e apparatus, which calculate an adaptive weight vector function through base value adjustment and use the adaptive weight vector for reception beam focusing. The adaptive reception beam focusing method comprises the steps of: calculating a correlation matrix of received channel data, a first weight vector function, and a noise level; converting the correlation matrix of the channel data into a first basis matrix; selecting a ground value which is equal to or higher than the calculated noise level among ground values of the first basis matrix and generating a second basis matrix; calculating a second weight vector function from the first weight vector function by using the second basis matrix; and performing a beam focusing by using the second weight vector function. Therefore, it is possible to generate images having high resolution by the reception beam focusing alone. 본 발명은 적응적인 수신 빔 집속 방법에 관한 것으로 수신한 채널 데이터의 상관행렬, 제 1 가중치 벡터함수, 및 노이즈 레벨을 산출하는 단계, 채널 데이터의 상관행렬을 제 1 기저행렬로 변환하는 단계, 제 1 기저행렬의 기저값 중 산출된 노이즈 레벨이상의 기저값을 선택하여 제 2 기저행렬을 생성하는 단계, 제 2 기저행렬을 이용하여 제 1 가중치 벡터함수로부터 제 2 가중치 벡터함수를 산출하는 단계, 및 제 2 가중치 벡터함수를 이용하여 빔 집속을 수행하는 단계를 포함함으로써, 수신 빔 집속만으로 높은 해상도의 영상을 생성할 수 있다.